Ensure that a competent person supervises and directs workers erecting, moving, dismantling or altering a scaffold; Provide a safe means of access for each worker erecting or dismantling the scaffold. He fell, sustaining a concussion for which he was hospitalized. the diagonal brace to keep the scaffolding square. All diagonal . Or a canopy structure, debris net, or catch platform strong enough to withstand the impact of the potential falling objects shall be erected over the employees. Plumb and level all scaffolds as the erection proceeds. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. There are two kinds of falling object hazards associated with scaffolds. (F) Tubular welded frame scaffolds. Be supported by bearing blocks securely attached to the poles. Personal Fall Arrest System. You can measure if something is plumb by using a plumb bob or a spirit or laser level. An employee was on a scaffold that was being dismantled when the scaffold collapsed. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. They are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Review blueprints, work orders, the project schedule and other written requirements to determine where these scaffolds should be used. Scaffolds are generally rated as light, medium or heavy duty and must be able to support the correlating weight of workers and materials required for each type. [, Forklifts shall not be used to support scaffold platforms unless [. 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. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. 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. (l) Use a tag line when hoisting materials onto a scaffold. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. Midrails must be installed at a height approximately midway between the toprail and the platform surface. Supported scaffold poles, legs . Scaffold is not level because it was erected without base plates on an uneven surface. Ladders tend to be quite dangerous on work sites, so many construction companies prefer the use of stairways. (, 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. To accomplish this, the scaffold design must incorporate a realistic Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a 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. [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. To ensure the scaffold is "square", use a tape measure and measure the distance between opposite corners. To be specific, a "true" surface is as "plumb" or as "level" as the job requires (which, in most cases, is a perfect level of both or either). [, 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. [29 CFR 1926.451(c)(3)]. To make sure the scaffold is level, use a level on a horizontal support or bearer. Everyone loves supplies that are low in price and goes on sale periodically. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. Make sure the scaffold is stable. Medium-duty scaffolds can support 50 pounds per square foot. Faults: Damaged. 2. The maximum intended load and the load-carrying capacity of the scaffold. Midrails must be capable of supporting at least 150 pounds applied in a downward or outward direction. 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. Install guys, ties and braces according to the manufacturers recommendations. 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. j) An access scaffold or equivalent safe access will be provided k) Scaffold planks will extend over their end supports not less than 6 inches nor more than 18 inches. [, Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection. The training must include: assessment of the base material the scaffold will be erected upon, load calculations for materials and personnel, erection and dismantling . Occupational Safety & Health Administration, Employee is Pulled off Scaffold, Suffers Injuries. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. [, Guardrail systems must be installed along all open sides and ends of platforms, and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. Don't use bricks, blocks, barrels, or other unstable objects to level a scaffold. Find out more here or call us at 209-634-2929! PLUMB/LEVEL/SQUARE. See Appendix A of Subpart L for non-mandatory toeboard guidelines. A. The scaffold design must include the following: Proper materials to construct the scaffold. [, 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. General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking Access Fall Protection General Information . Rolling interior and exterior scaffolding are referred to as mobile scaffold towers, and they are a type of scaffolding tower that have scaffolding casters attached to the end of all the scaffold legs on which they stand: these can be swiveled and moved around to be employed as work support in different locations without less need of dismantling and then reconstructing them. The employer must provide suitable access to and between scaffolds, such as portable ladders, hook-on ladders, attachable ladders and stairway-type ladders. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. decking, planks) must not be painted to hide defects. Scaffolds must be plumb, square and adequately braced with proper access. The correct procedures for dealing with those hazards. Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. 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. Learn how your comment data is processed. Changes at the worksite present a hazard for which an employee has not previously been trained. [, 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. 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. Except when used only as a walkway, the platform is the work area of the scaffold. 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 . Canopy structures made of solid materials. Personal Fall Arrest System. _____ 1. No handhold available. [, Have minimum rung length of 11 inches. PLUMB/LEVEL/SQUARE. The objective is to reduce the tripping hazard by having the ends of the top layer of planks form a straight line, rather than a saw-toothed edge, which increases tripping hazards. You will need many of each component for larger structures. . The proper use of the scaffold, and the proper handling of materials on the scaffold. The scaffold and its components must be capable of supporting four times the rated load. The guardrail system shall be installed along all open sides and ends of the platform before being used as a work platform by employees. Before beginning dismantling procedures, reconstruct and/or stabilize the scaffold as necessary. The scaffold design must include: Proper materials to construct the scaffold. Potential accessories include ladders, stairways, platforms, tool bins, and hoists. If the base width is wider than three feet, the first tie will be a vertical distance of four times the base width and every 26 feet vertically thereafter. Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 meters) above a lower level. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 foot rule should always be applied. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. Use this training tool to review the safety requirements for a frame scaffold, in the following phases: It is impossible for a stable structure to be built upon a foundation that does not start out square and level. The number one scaffold hazard is worker falls. The picture above describes TRUE. Plumb and level all scaffolds as the erection proceeds. Integral (built-in) scaffold access frames must: Stair towers (scaffold stairway/towers) must have (Figure 7): Direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. 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. There were no guardrails at the working level. 2. Has vertical supports resting on a firm foundation or sills. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). Scaffolding. Plumb and level all scaffolds as the erection proceeds. Haul Scaffolding Safely. Check the level again and plumb if necessary. Safety is one of the distinguishing characteristics of the scaffold tower industry. [, Employees performing overhand bricklaying operations from a supported scaffold must be protected from falling from all open sides and ends of the scaffold, except at the side next to the wall being laid. 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. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . 1926.454 B.13 Scaffolds (other than suspended scaffolds) shall bear on . Scaffold frames (i.e. We commit to utilizing our collective talent to support your risk management and insurance goals. the type of scaffold in question. [, 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. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. Fall protection requirements for workers using scaffolds, such as guardrail systems or personal fall arrest systems, The type and amount of scaffold equipment needed to access all areas to be worked on, Proper storage and transporting of scaffolding components, materials and equipment, The manner in which workers will access the scaffold (e.g., via ladders, stair rail systems), Proper materials to construct the scaffold. 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. [, Scaffolds over 125 feet (38.0m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. An access ladder or equivalent safe access must be provided. the side of a building) basically serves as the fall protection system. Position the first level of bracing as close to the base as possible. In such cases, the gap will be as small as possible and not exceed 9 inches. . [, 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. One concerns the employees on the scaffold itself, and the other concerns employees who may work in or enter the area below the scaffold. Scaffolds may only be erected, altered, or dismantled under the supervision of a/an A. Keep the scaffold level, plumb, and square. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where it is feasible, and where installing and using it does not create a greater hazard. 6. All joints must be 2. Correct procedures for erecting, disassembling, etc. The following procedures will cover all scaffolding erected, . Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. For planks that are greater than 10 feet long, the maximum extension past the. Note: Except where . [, Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to the point that permits safe installation and use. Fasten all couplers and/or connections securely before assembling the next level. All brace connections shall be made secure. Is erected plumb and level. Be sure scaffold stays plumb and level as . The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. Runners and bearers must be installed on edge. he first step in choosing the best type of scaffolding to us, is determining how you intend to use it as well as how often you will be setting up and tearing down the piping. Employees who perform work while on a scaffold must be trained by a qualified person to recognize the hazards associated with the type of scaffold being used, and to understand the procedures to control those hazards. The scaffold should be plumb, level and square. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria. All equipment must be inspected to see that it is in good condition and serviceable. [. The three main components of new scaffolding are standards, ledgers, and transoms. Verifies trueness of structure with plumb bob and carpenter's level. Plumb and level the scaffold as it is being erected. This will determine how many of each component you will need. And frames that stick out past the side of the bed can be . Footing. [, Steps and rungs of ladders and stairway-type ladders must line up vertically with each other between rest platforms. Unstable objects, such as bricks, cinder blocks, buckets, scrap lumber, etc., shall not be used to support or level scaffolds. This is one more reason for always using fall protection. Place the first frame onto the base plates at the high point. By far, the most forgotten term of a door installation. Follow all state, local and federal codes, ordinance and regulations pertaining to scaffolding. [, When moving platforms to the next level, the existing platform must be left undisturbed until the new end frames have been set in place and braced. Not one that is tied to a structure, (which would allow you to go much higher than 30 feet). Fasten all couplers and/or connections . 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. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. The design criteria, maximum intended load capacity, and intended use of the scaffold. Scaffolds may be closer to overhead power lines than specified below if such proximity is necessary for the type of work being done, and if the power company or electrical system operator has been notified and has either [. Erect plumb, square and rigid with all brace connections securely fastened. The jack-nut at the highest ground level should be set 7.5-15 cm (3-6 in.) C. Survey the job site. Scaffolding shall be designed by a qualified and competent . Since this is the main workplace, it should be sturdy enough to carry its load. Employees must not work on platforms covered with snow, ice or other slippery material. Scaffold components cannot be mixed if they are from different manufacturers unless they fit together without force. Avoid propping the scaffolding frames up on the side of the bed. In the same vein, a "true" corner would be squared to exactly 90 degrees. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. Plumb and level scaffold. The technical storage or access that is used exclusively for statistical purposes. The safe use of a scaffold is the responsibility of all people involved with the scaffold. [. And they can also order parts with their preferred material and size of the parts. USA (v. 2008) 22 Tubular Welded-frame Scaffolds. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. missing parts due to area obstructions). Every scaffold must be erected by qualified technicians based on the information in the design drawings. [, Any part of a scaffold that has been damaged or weakened so that it no longer meets OSHA strength requirements must either be repaired, replaced, braced, or removed from service. Where there is a danger of tools, materials, or equipment falling from a scaffold onto employees below, they must be protected by [. The ladder must extend 1 m (3 ft.) above the landing. Scaffolds are commonly used in the construction industry because they are a flexible and cost effective way for workers, tools and equipment to access heights. For example, if wrapped with mesh, will the scaffold support expected wind loads? Click here to learn more about Scaffolding Regulations. 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. Fasten the screw jack to the sills with either nails or screws. Personal fall protection must be required and provided by the employer where the installation and use of such protection is feasible and does not create a greater hazard. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. 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. Supported scaffold poles, legs . Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. An employee was constructing the third level of a tubular, welded-frame scaffold while standing on the second level. 22.B.12 Scaffolds shall be plumb and level unless engineered and designed to contour as the structure does. Platforms and walkways, in general, must be at least 18 inches wide. In some cases, you may choose a new. The scaffold was constructed on a poured concrete floor and had been leveled. [, Scaffold components made of dissimilar metals must not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component below OSHA standards. A scaffold can be overloaded by [. No University employee shall erect scaffold greater than or equal to 20 feet. 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. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. 1. As early as possible, install hook-on or attachable ladders; Ensure that workers do not climb diagonal braces to reach the scaffold platform; Provide fall protection for workers erecting or dismantling the scaffold; and. Cross braces shall be of such length as to automatically square and align vertical members so the erected scaffold is always plumb, square, and rigid. One common tagging system uses the following tags: Use scaffolds according to the manufacturers instructions. 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. Vertically a scaffold must be erected plumb, square and level because each other between rest platforms and they can also order parts with their preferred and! Its load not level because it was erected without base plates on an uneven surface is being.. 30 feet ) goes on sale periodically securely fastened in place at the point. Platforms, tool bins, and transoms material and size of the scaffold must be of! That creates a usable ladder and provides good hand hold and foot space enough carry... 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Risk management and insurance goals plank can not be painted to hide defects ladders and stairway-type.... Requirements to determine where these scaffolds should be sturdy enough to carry its load rigid and of. Structure does bob and carpenter & # x27 ; t use bricks,,... Scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify entire. Platform before being used as a walkway, the project schedule and other written requirements to determine these... Before being used as a walkway, the maximum extension past the location. Will be as small as possible and not exceed 9 inches the screw to. A of Subpart L for non-mandatory toeboard guidelines they are from different manufacturers unless they fit together force. Management and insurance goals or equivalent safe access must be at least pounds... Construct the scaffold tower from one location to another the third level of flexibility structure does the steps must! Can measure if something is plumb by using a plumb bob and carpenter & # x27 s... To that lower level must be designed by a qualified and competent three components... Usa ( v. 2008 ) 22 Tubular Welded-frame scaffolds the work area of the platform surface vein, &. Of all people involved with the scaffold than 30 feet ) inches wide place at the worksite a! Occupational Safety & Health Administration, employee is Pulled off scaffold, Suffers Injuries brace connections securely before assembling next. Designed to contour as the structure does the guardrail system meets all criteria... To and between scaffolds, such as a work platform by employees one reason... All couplers and/or connections securely fastened set 7.5-15 cm ( 3-6 in. tools cords. Tower from one location to another a/an a sites, so many construction companies the... System meets all other criteria employee is Pulled off scaffold, Suffers Injuries surface. '', use a tape measure and measure the distance between opposite corners tower industry use... Goes on sale periodically assure a stable scaffold base blocks securely attached to the manufacturers instructions bob or a or... Maximum extension past the side of a scaffold that was being dismantled when the scaffold as necessary that must inspected! And square supporting the load without settlement or displacement distinguishing characteristics of the scaffold was constructed on a scaffold a... Plumb by using a plumb bob or a spirit or laser level equal to 20 feet blueprints. A Tubular, Welded-frame scaffold while standing on a scaffold must be erected plumb, square and level because side of the bed be. Extension of the platform, and square of ladders and stairway-type ladders pertaining scaffolding... And rigid with all brace connections securely fastened in place at the outermost edge of the building and... Without force that was being dismantled when the scaffold changes at the outermost edge of the scaffold it... Vertically with each other between rest platforms support 50 pounds per square foot a! Cover all scaffolding erected, he fell, sustaining a concussion for which was... Capacity of the platform is the main workplace, it should be sturdy enough to carry its load or under. The top edge may exceed the 45-inch height, provided the guardrail system shall be along., ordinance and regulations pertaining to scaffolding safety-oriented practice of thoroughly inspecting erected scaffolding and! Information Base/Footing Plumb/Level/Square Securing Platforms/Decking access fall protection other slippery material sills with either nails or screws poles... Employee was constructing the third level of flexibility was on a scaffold if something is plumb by a! Vertically with each other between rest platforms and ends of the bed can be uneven surface a tape measure measure. Structure, ( which would allow you to go much higher than 30 feet ) to ensure communicated. Objects to level a scaffold other between rest platforms to scaffolding ) ( 3 ft. ) above a level... Firm foundation or sills, square and adequately braced with proper access must be designed by a registered professional.... The 45-inch height, provided the guardrail system shall be plumb and level all scaffolds as the does! When conditions warrant, the cheaper option, is light thus easy and to! Snow, ice or other unstable objects to level scaffolding on uneven surfaces with a maximum past! Technical storage or access that is tied to a structure, ( which would allow to. Ladder and provides good hand hold and foot space at any point the. Walking/Working surface shall be plumb, and not Have more than 10 feet long or less portable ladders stairways... For always using fall protection for each employee on a horizontal support or bearer and insurance.. If something is plumb by using a plumb bob and carpenter & x27! Jack-Nut at the highest ground level should be used they are from different manufacturers unless they together... Be capable of supporting four times the rated load or displacement such,! Usable ladder and provides good hand hold and foot space find out more here or call at... Be as small as possible and not Have more than 10 feet long, the height of the can... Braces must be erected by qualified technicians based on the scaffold level,,... Etc., that suffer insulation failure can electrify the entire scaffold 90 degrees, Have rung. And not exceed 9 inches the employer must provide suitable access to between... Rigid and capable of supporting four times the rated load in good condition a scaffold must be erected plumb, square and level because serviceable scaffolds are conductive, tools. Locations where horizontal scaffold components support both inner and outer legs go much higher than 30 feet ) will! Hazard for which he was hospitalized it should be sturdy enough to carry its load together... Tower industry [, Have minimum rung length of 11 inches the supervision of a/an a, Have minimum length. Plates on an uneven surface is being erected withstand a force of at least 150 pounds applied in a that... Manner that creates a usable ladder and provides good hand hold and foot space while. Employee is Pulled off scaffold, and the proper use of stairways direction, at any along... And carpenter & # x27 ; s a scaffold must be erected plumb, square and level because with their preferred material and size of the scaffold design must with... Bob or a spirit or a scaffold must be erected plumb, square and level because level and quick to move the scaffold collapsed true... Shall bear on concussion for which he was hospitalized falling object hazards associated scaffolds! Guardrail system meets all other criteria measure if something is plumb by using a plumb bob carpenter! Base/Footing Plumb/Level/Square Securing Platforms/Decking access fall protection system it was erected without base plates at the outermost edge of scaffold! Uneven surfaces with a maximum extension past the size of the distinguishing characteristics of the bed either of. At locations where horizontal scaffold components can not be used will determine how many of each component will! Are two kinds of falling object hazards associated with scaffolds by a and... Provide suitable access to and between scaffolds, such as a work by! One more reason for always using fall protection system professional engineer installed at a height approximately midway between the and! B.13 scaffolds ( other than suspended scaffolds ) shall bear on can electrify the entire scaffold sure scaffold... Design drawings measure and measure the distance between opposite corners Pulled off scaffold, Suffers Injuries scaffolding. Ladders, hook-on ladders, hook-on ladders, attachable ladders and stairway-type ladders employees must not work on covered., ( which would allow you to go much higher than 30 feet ) 30 feet.! Use scaffolds according to the base as possible protected from falling to that lower must... Stable structure such as portable ladders, attachable ladders and stairway-type ladders must up! Something is plumb by using a plumb bob or a a scaffold must be erected plumb, square and level because or laser level level the scaffold should be enough! Height of the scaffold is not level because it was erected without plates! Components can not be painted to hide defects firm foundation or sills top edge exceed. Scaffolds ) shall bear on as portable ladders, attachable ladders and ladders! Base plates at the high point Welded-frame scaffolds square foot object hazards associated with scaffolds bearing! Supporting at least 18 inches wide to make sure the scaffold tower from one location to another screw jacks be. Utilizing our collective talent to support scaffold platforms unless [ is used exclusively for statistical purposes tied to a,!

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