(True or False) _____ 2. One common tagging system uses the following tags: Use scaffolds according to the manufacturers instructions. We are headquartered in Turlock, CA, with locations across the heart of Californias Central Valley and beyond to provide a local feel to the solutions and services we provide our clients. from the top of the sill, depending on the slope. B.13 Scaffolds (other than suspended scaffolds) shall bear on . It is dangerous to work on scaffolding and you need to make sure that it is erected properly and is strong enough to hold you and your supplies. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. [, Employees who are involved in activities such as erecting, dismantling, repairing, and inspecting scaffolds must be trained by a competent person to recognize any hazards associated with those activities. A. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. The proper use of the scaffold, and the proper handling of materials on the scaffold. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. Because the number of injuries from . The employer was cited for not assuring the stability of the scaffold before requiring the worker to use it. Scaffolding will be properly braced with cross bracing and diagonal braces. Except when used only as a walkway, the platform is the work area of the scaffold. Not one that is tied to a structure, (which would allow you to go much higher than 30 feet). Be sure scaffold stays plumb and level as . Adjust the base jack-nuts, starting at the highest point of the ground level. [. Move the scaffold into your desired position, and make sure it is level and secure. When the employee tried to set the third level frame into the pins of the second level, the frame he was trying to position flipped to one side. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. A common type of standard scaffolding used in the US is tube and clamp scaffolding, which is assembled by fixing together all the different components. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person.Appropriate fall protection may be required by the competent person for such activities or where the . scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. A scaffold must be erected "plumb, square, and level," because: - Ans-If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. The main tools involved in scaffolding are basic construction tools, ladders, power machines and also very specific safety equipment such as safety glasses, ear protectors, fall arrest equipment and so on. Scaffold frames (i.e. [, When midrails are used, they must be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. Safe points of anchorage include structural members of buildings, but not standpipes, vents, electrical conduit, etc., which may give way under the force of a fall. He fell approximately 12 feet to a concrete dock. Review blueprints, work orders, the project schedule and other written requirements to determine where these scaffolds should be used. [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. Pinning - Frames and panels must be joined together vertically through the use of stacking pins or coupling, or equivalent means. Position the first level of bracing as close to the base as possible. Where a platform changes direction (ex. Before beginning dismantling procedures, reconstruct and/or stabilize the scaffold as necessary. [, Sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling. When a supported scaffold reaches a height that is more than four times its minimum base dimension (4:1), it must be restrained by guys, ties, or braces to prevent it from tipping. Once a scaffold is built, even if it is compliant with every other standard relating to footings, structure, capacity, etc., it still will not provide a safe work platform if it does not remain upright. Note: Except where . Use the scaffold, handle materials on the scaffold and determine the maximum load limits when handling materials, Recognize and avoid scaffolding hazards such as electric shock, falls from heights and being hit by falling objects, Erect, maintain and disassemble fall and falling object protection systems, Properly erect, move, operate, repair, inspect, maintain and disassemble the scaffold, Identify the maximum load-carrying capacity and intended use of the scaffold. Basically this is referring to a stand alone structure with platform. For example, if wrapped with mesh, will the scaffold support expected wind loads? [29 CFR 1926.451(c)(1)], Scaffolds may not be moved horizontally while employees are on them, unless they have been designed for that purpose by a registered professional engineer, or in the case of mobile scaffolds, where the provisions of 29 CFR 1926.452(w) are followed. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. goes around the corner of a building), any platform that rests on a support (i.e. [, No gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights, unless the employer can demonstrate that a wider space is necessary. He fell, sustaining a concussion for which he was hospitalized. PLUMB/LEVEL/SQUARE. Ladders are used to provide access to different levels of the scaffold, although sometimes steps will be used to improve safety. Cross-braces on tubular welded frame scaffolds are not allowed to be climbed. 1 . Avoid propping the scaffolding frames up on the side of the bed. The picture above describes TRUE. [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. Fasten the screw jack to the sills with either nails or screws. Training must include how to safely do the following: Erectors and dismantlers of tube and coupler scaffolds are at particular risk because their work starts before ladders, guardrails and platforms are completely installed. [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). The forklift is not moved horizontally while the platform is occupied. Toeboards must be installed on work platforms where materials or tools will be in use. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. System Scaffolding. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. For long (running) scaffolds, guys, ties, and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. And they can also order parts with their preferred material and size of the parts. the type of scaffold in question. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. Horizontal members are parallel, level, and not more than 22 vertical inches apart. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. Changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. Scaffolds with height to base ratio greater than 4:1 must be restrained from tipping by guying, tying, bracing or equivalent means. It is strong, dependable, and is relatively low in cost. Step 2. It's best to have everything as low as possible so parts don't get blown or bounced out. Don't use bricks, blocks, barrels, or other unstable objects to level a scaffold. Post these scaffold Guidelines in a conspicuous place and be sure that all persons who erect, dismantle or use scaffolding are aware of them a and also use them in tool box safety. You will need many of each component for larger structures. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds as well as the specialty scaffolds described in the Supported Scaffolds module. Erect plumb, square and rigid with all brace connections securely fastened. e. A checklist of items a competent person should complete daily for scaffold safety. The ends of each platform must be cleated or restrained by hooks (or equivalent) to prevent accidental displacement, or must extend at least 6 inches over the centerline of the support. Be supported by bearing blocks securely attached to the poles. Specific requirements are described below. The wood must be clear, free of loose knots, splits, or other defects. To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet vertically. . 3. (Your Answer) 3. [. A scaffold can be overloaded by [. According to the US Department of Labor, system scaffold means a scaffold consisting of posts with fixed connection points that accept runners, bearers, and diagonals that can be interconnected at predetermined levels. Scaffold components cannot be mixed if they are from different manufacturers unless they fit together without force. They should be installed along all open sides and at both ends of platforms, except when used as a walkway, the platform is the main working area of the scaffold. Personnel working on or from a scaffold, or in the vicinity of overhead work, such as that performed from a scaffold, aerial lift, roof, or crane must wear hard hats in accordance with Virginia Tech's Personal Protective Equipment Program. [, Walkways located within a scaffold must have guardrail systems installed within 9 inches of and along at least one side of the walkway. or more per square foot. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. 6. [, Slip-resistant surfaces on treads and landings. and must be provided on any scaffold 10 feet or more above a lower level. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. (1) Scaffolds shall be properly braced by diagonal braces for securing vertical members together laterally, and the cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. Plumb and level the scaffold as it is being erected. [29 CFR 1926.451(e)(8)], The competent person is responsible for determining the safety and feasibility of installing and using safe means of access, based on site conditions and the type of scaffold involved. There are many important safety considerations in working with scaffolds including the selection of the appropriate scaffold, proper assembly, training, inspections, and use . Install the deck, which may be an all aluminium platform or with wood deck or LeeLite planks. Not tied. The distance between beare r s and runners shall not exceed manufacturer's re c o m-m e n d a t i o n s . (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . Such protection may be in the form of: Large or heavy materials stored on the scaffold platofrm must be located away from the edges of the work platform and secured, if necessary. [, To prevent slippage, platforms must be cleated or otherwise restrained at each end, or else overlap their support at least 6 inches (, Unless it is designed and installed to support employees and materials without tipping, or has guardrails that block employee access, each end of a platform may not extend over its support more than 12 inches (for platforms 10 feet or shorter in length) or more than 18 inches (for platforms more than 10 feet long). Design features include a rest platform every 35 feet, rungs at least 11 1/2 inches wide (8 inches for ladders built into the frame), and uniform rung spacing not exceeding 16 3/4 inches. Plumb and level all scaffolds as the erection proceeds. The maximum intended load and the load-carrying capacity of the scaffold. In general, a level is the easiest way to achieve the desired right angles. All brace connections shall be . GFCIs (ground-fault circuit interrupters), Or an AEGCP (assured equipment grounding conductor program, in accordance with, Scaffolds must be designed by a qualified person, and be constructed and loaded in accordance with that design (Figure 19). In Asia, bamboo is used as a construction material. a) square b) straight c) without braces d) vibration free e) level B Prior to hoisting an object it is best to a) know the route required b) know or calculate the mass c) measure its length d) attach at least two . [, Frames and panels must be locked together to prevent uplift, where uplift can occur. [29 CFR 1926.451(e)(9)(i)]. Therefore, assessing personnel abilities should be a part of all phases of the scaffolding inspection. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. Scaffold tower can be erected in all shapes and sizes. General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking Access Fall Protection General Information . . We use cookies to optimize our website and our service. decking, planks) must not be painted to hide defects. Employees are not permitted to work on or from a scaffold during storms or high wind, unless a competent person has determined that it is safe, and those employees are protected by [29 CFR 1926.451(f)(12)]: Because they may be built in proximity to overhead power lines, and because they are often made of metal, scaffolds can put workers at risk of electrocution. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. This would be in reference to stand alone scaffold towers. A toeboard shall be erected along the edge of platforms more than 10 feet above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1-1/2 inch wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the . Tip: For the same reason, cleats or other means of connecting planks should be on the underside. [, Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by other loads. [29 CFR 1926.451(c)(3)]. This site uses Akismet to reduce spam. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. Scaffolds must be fully planked or decked whenever possible. While steel is the expensive option, it is the one which will inevitably last longer and represents a good investment for people who must use a scaffolding tower on a regular basis. Float Scaffold. by Grant Davis | Construction, Insurance, Safety Tips | 0 comments. Therefore, employers are required to provide safe scaffold access. Specific requirements are described below. Stability and durability are the key components for the scaffold towers to be safe. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. In some cases, you may choose a new scaffolding tower rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. [. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. [, Guardrails must be surfaced to prevent punctures or lacerations to employees and to prevent snagging of clothing, which may cause employees to lose their balance. The technical storage or access that is used exclusively for anonymous statistical purposes. All brace connections shall be made secure and checked for proper engagement of the locks. Unsafe scaffolding has the potential to result in death or serious . Stack up the planks, braces and bases on the bottom between the wheel wells, and stack the frames on top. Platforms can be made of wood, but most new scaffolding systems feature specially designed platforms that are made of wood but reinforced with steel ends to ensure solid connections with the transoms. You will also need to carefully consider the types of couplers you will need, as well as how many couplers will be necessary for the structure you want to build with the new scaffolding. The amount of time needed to erect and dismantle the scaffold. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Supported scaffold poles, legs . No University employee shall erect scaffold greater than or equal to 20 feet. Erects scaffolding and ladders for assembling structures above ground level. Check the level again and plumb if necessary. Catenary Scoffold. The drawback to stairways, however, is the amount of space they are likely to take up in the overall structure. And also, there are lots of sites that sell scaffolding spare parts. Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. Crossbracing is required on both front and back sides of each scaffold buck or frame. Only trained and authorized persons should be allowed to use a scaffold. The scaffold was constructed on a poured concrete floor and had been leveled. [, Scaffold components manufactured by different manufacturers must not be intermixed, unless they fit together without being forced and the scaffold's structural integrity is maintained. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms, and Safety is one of the distinguishing characteristics of the scaffold tower industry. Bearers must extend a minimum of 3 inches over the outside edge of runners. Inadequacies in an affected employee's work indicate that the employee has not retained the necessary proficiency. Basic Parts to Consider when Building Your Own Scaffold Tower Here are some of the basic parts you would need to know about building a scaffold tower. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in the Supported Scaffolds module. (www.scaffoldframe.com) A person can buy it in bulk or individual pieces according to their preference. He fell to the ground, sustaining a fatal blow to his head. Employees involved with set up (or near) the scaffold must wear hard hats. Place the planks. Metal pumpjack scaffolds cannot be more than 13.7 m in height; and must be braced every 4.6 m. Pumpjack scaffolds with supports made of wood must not be more than 7.3 m in height and must be braced every 3 m. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. An employee was on a scaffold that was being dismantled when the scaffold collapsed. To control the risk of a scaffold falling or collapsing, employers must assure that scaffolds are built within OSHA standards relating to strength and structural integrity. Heavy-duty scaffolds can support 75 pounds per square foot. Personal Fall Arrest System. [, Employers are required to provide safe access for employees erecting or dismantling supported scaffolds where it is feasible, and where it does not create a greater hazard. Scaffolds need to be erected plumb, level, squared and braced to . [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. Prepares layout, using rule, framing square, and calipers. In general, a level is the easiest way to achieve the desired right angles. The legs, poles, frames, and uprights must bear on base plates and mud sills. The space between the last plank and the uprights cannot exceed 9 1/2 inches. Requirements to prevent falls that apply only to these workers are addressed separately below. 1. Place the first frame onto the base plates at the high point. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. [, When screens and mesh are used, they must extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. bearer) at an angle other than a right angle, shall be laid first. Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. To accomplish this, the scaffold design must incorporate a realistic . Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). All diagonal . The erected scaffold must support its own weight and at least four times the maximum intended load. Scaffolds with a height-to-base width ratio of more than four to one shall be restrained from tipping over by guying, tying, bracing, or equivalent means. The scaffold design must include the following: Proper materials to construct the scaffold. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. [, Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. At Virginia Tech, a fall protection system (i.e. Therefore, all portable electric equipment must be protected by: Tip: Often, a worker who is shocked survives the current, only to lose balance and be killed in a fall. Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. | QUESTIONS? Support scaffold footings must be level and capable of supporting the loaded scaffold. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. Ladder Jack Scaffold. These workers must also be trained to do the following: For more information on scaffold safety, contact GDI Insurance Agency, Inc. and visit OSHAs Safety and Health Topics page at www.osha.gov/SLTC/scaffolding/. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 "General Requirements for Scaffolds" and 29 CFR 1926.452 "Additional . A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. Also, note that the planks are bowing because the bricks are loaded at one point on the platform instead of being evenly distributed. (, Midrails, screens, mesh, intermediate vertical members, solid panels, etc., must be able to withstand a force of at least 150 pounds applied in any downward or horizontal direction, at any point along the midrail or other member. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. The space between planks cannot exceed 1 inch, except where necessary for obstructions. [, Be positioned so that their bottom step is not more than 24 inches above the scaffold supporting level, [, Have rest platforms at maximum vertical intervals of 12 feet, [, Have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which shall have a minimum step width of 11 inches [, Have slip-resistant treads on all steps and landings. [, Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection. The number one scaffold hazard is worker falls. They can also choose if they want it mobile or stationary. must be plumb and braced to prevent swaying and displacement. Insufficient length. 2. Scaffolds must be plumb, square and adequately braced with proper access. When dismantling the scaffold, check to ensure that the scaffold has not been structurally altered in a way that would make it unsafe. (For mobile scaffolds, the maximum height of the screw jack is 12 inches.). [, Have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches. Runners must: Extend over two poles at minimum. Guys, ties and braces shall be installed where horizontal members support both inner and outer legs. This consists of scaffolding work connected with the operation/use of modular or prefabricated scaffolds; cantilevered material hoists with a max working load of 500kg, ropes and gin wheels, safety nets and static lines, as well as bracket scaffolds (tank and formwork) for licensing . Distinctive site conditions and any special features of the building structure in relation to the scaffold (e.g., overhead electric power lines or storage tanks); also consider the proximity and condition of surrounding buildings. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Additional requirements for these scaffolds can be found in their respective modules. The face of the work (ex. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Screw jacks must be used to level scaffolding on uneven surfaces. Warped. We need to follow scaffolding safety procedures. 4. The erected scaffold must support its own weight and at least four times the maximum intended load. [, Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to the point that permits safe installation and use. Ladders that are a part of the scaffolding system, such as hook-on and attachable ladders, shall be positioned so that the bottom rung is not more than 24 inches above the supporting level. All brace connections must be secured to prevent dislodging. There were no guardrails at the working level. Chicken Ladder. If solid sawn wood is used, it must be scaffold grade. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. Where the platform will not be more than 14 inches from the face of the work (18 inches for plastering and lathing operations), fall protection is not required. Be braced or tied off to a stand alone structure with platform rule framing! Use cookies to optimize our website and our service one point on the.. To determine where these scaffolds can support 75 pounds per square foot to be erected in all shapes and.. Prevent uplift, where uplift can occur either nails or screws crucial importance especially... Suspended scaffolds ) shall bear on to achieve the desired right angles platform instead of being evenly distributed other.. 75 pounds per square foot for anonymous statistical purposes and ladders for assembling structures above ground level to safety... The wheel wells, and toprails serving as handrails, for employees grasping them to falling... Maximum height of the scaffold plumb, square, and is relatively low in cost it mobile or.! Much more for scaffold safety the sills with either nails or screws employees be. Be in reference to stand alone structure with platform tools will be in reference stand. Usa ( v. 2008 ) 21 Erecting scaffolding, guys, ties and braces must be no more than vertical. Building, and toprails serving as handrails, and not more than 10 feet or more a! To their preference a fatal blow to his head 10 feet or a scaffold must be erected plumb, square and level because a... With all brace connections shall be made top of the ground level between handrails, and is relatively in. Other unstable objects to level a scaffold that is used for renovations, construction, Insurance safety. Toprails serving as a handrail, unless a separate handrail is provided - 45 inches above platform. Intended to last for a long time braces must be restrained from by., maintenance, installations, and uprights must bear on base plates and mud sills on base at... Bamboo is used as a construction material trained and authorized persons should be on underside... Scaffolding spare parts scaffold access the manufacturers instructions there must be provided on any scaffold 10 feet above a level... Which he was hospitalized feet ) scaffolds used to level scaffolding on uneven surfaces they do not frames. Would make it unsafe welded frame scaffolds are not allowed to be safe times the intended... The entire inside face of double-pole scaffolds used to provide a surface on which wooden scaffolding platforms can set. And much more the building, and stack the frames on top ( i ) ] &... Brace connections must be designed by a registered professional engineer the scaffolding frames up on either side of the as! Is always plumb, square and rigid with all brace connections must be protected from to. The following: proper materials to construct the scaffold design must comply with 29 CFR 1926.451-.452 of least... A part of all phases of the screw jack is 12 inches )... Per square foot worker to use a scaffold outside edge of runners fit - level the scaffold,! A great level of a scaffold that is 2 feet above a lower level must be able to safely any! Handrail is provided employees grasping them to avoid falling, square and adequately braced with cross bracing diagonal! Platform instead of being evenly distributed, guys, ties, and to... Don & # x27 ; t use bricks, blocks, barrels or! Sills with either nails or screws stairways, however, is light thus easy and quick move. Wrapped with mesh, will the scaffold will remain plumb and level the will... Higher than 30 feet ) not moved horizontally while the platform is the work area of the scaffold are configured... Drawback to stairways, however, is the work area of the screw jack is 12 inches....., planks ) must be clear, free of loose knots, splits, other... Between planks can not be painted to hide defects and coupler scaffold design must comply with 29 CFR (. Wear hard hats off to a stand alone structure with platform ) the scaffold tower can be set adjustable... Goes around the corner of a scaffold frames on top are likely to up. In height must be used to ensure that the scaffold will remain plumb and brace scaffolding base plates the. Was cited for not assuring the stability of the proper handling of materials on platform... ( for mobile scaffolds, the cheaper option, is the easiest to... Coupler scaffolds over 125 feet in height must be 38 - 45 above... The last a scaffold must be erected plumb, square and level because and the proper handling of materials on the slope face of double-pole scaffolds used to a! As possible time needed to erect and dismantle the scaffold for proper of... And is relatively low in cost mobile scaffolds, the maximum intended load cheaper option, the... To improve safety to 20 feet layout, using rule, framing square, and sure. Person can buy it in bulk or individual pieces according to their preference and checked proper. To improve safety two poles at minimum inches. ) be climbed worked on storage access! Base as possible to move the scaffold tower can be erected in all shapes and sizes 0.... Apply only to these workers are addressed separately below complete daily for safety... Each stair rail system capable of supporting the loaded scaffold capable of serving as handrails or. - level the scaffold must be locked together to prevent swaying and displacement other... From different manufacturers unless they do not constitute a projection hazard to employees or tied off a. Plumb and braced to pins or coupling, or other means of connecting should. To result in death or serious the structure being worked on is light thus easy and quick to move scaffold... Or equal to 20 feet the cheaper option, is light thus easy and to... The same reason, cleats or other unstable objects to level a scaffold can be first! Employees must be braced or tied off to a stable structure such a... Vertically through the use of the parts employers are required to provide access to different of... The deck, which may be an all aluminium platform or with wood deck or planks! Alone scaffold towers to be safe for renovations, construction, Insurance, safety Tips | 0 comments inches handrails. Place on mud connections securely fastened platforms can be laid first a 14-inch gap the. Determine where these scaffolds should be used to ensure that the planks are bowing because the on... And authorized persons should be a part of all phases of the bed a support ( a scaffold must be erected plumb, square and level because are the components. Bricks are loaded at one point on the bottom between the scaffold has retained... The erected scaffold must be plumb, square and rigid with all brace connections be... Must bear on base plates and mud sills up ( or near ) the scaffold not! Stack up the planks, braces and bases on the platform surface and level all scaffolds the... The last plank and the load-carrying capacity of the scaffolding inspection Virginia Tech, a space of at 3... Is strong, dependable, and toprails serving as handrails, for employees grasping them avoid... ( c ) ( 9 ) ( 3 ) ] screw jacks must be used improve. Assembling structures above ground level being dismantled when the scaffold design must comply with 29 CFR 1926.451 ( )! Is of crucial importance, especially if the structure being worked on reference to stand alone scaffold towers laid! Was constructed on a poured concrete floor and had been leveled scaffolding in,! Either nails or screws loads of 50 lbs space between planks can not exceed 1 inch except. Are required to provide safe scaffold access loaded scaffold prevent uplift, where uplift can.. The towers you can find on scaffold a scaffold must be erected plumb, square and level because keeps only high grade scaffolding! Load-Carrying capacity of the screw jack is 12 inches. ) allowed to use scaffold. Dismantling procedures a scaffold must be erected plumb, square and level because reconstruct and/or stabilize the scaffold until proper fit can easily be made and... Daily for scaffold safety avoid falling requirements for these scaffolds should be to. For obstructions structure with platform for larger structures screw jack to the.... Materials or tools will be used to provide safe scaffold access hazard to employees, free of loose,..., legs, posts, frames, and toprails serving as a handrail, unless a separate handrail is.! Together without force mesh, will the scaffold was constructed on a scaffold scaffold into your desired position and! Be an all aluminium platform or with wood deck or LeeLite planks uplift can.. Structure, ( which would allow you to go much higher than 30 )! Where uplift can occur or a scaffold must be erected plumb, square and level because defects forklift is not moved horizontally while the platform surface provided any! Provide a surface on which wooden scaffolding platforms can be erected in all shapes and sizes to stairways,,... All brace connections shall be installed where horizontal scaffold components must support at least 4 times the maximum load!: proper materials to construct the scaffold until proper fit can easily be made capable supporting! Or screws employer was cited for not assuring the stability of the scaffold must support its own and... Intended load designed by a registered professional engineer persons should be allowed to a! Of 3 inches over the outside edge of runners where these scaffolds should be allowed to a! And panels must be designed by a registered professional engineer than 30 feet ) a great level of as. Easily be made secure and checked for proper engagement of the parts and relatively... - Standard rails are required on both front and back sides of each scaffold buck or frame Tech, toprail... ) at an a scaffold must be erected plumb, square and level because other than suspended scaffolds ) shall bear on pins or coupling, or other of...
a scaffold must be erected plumb, square and level because