OSHA scaffold regulations recommend that your scaffolding include a guard rail across the base, mid rails and top of any scaffolding more than 10 feet in height. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. 1 3 / 8 " outside diameter. Outriggers and Bases. Many injuries can be prevented by following essential scaffolding safety precautions dictated by the OSHA scaffolding regulations. OSHA requires that a qualified person design all scaffolds to support four times their maximum intended load. Planking on this platform should be six planks wide, instead of only two. But unfortunately, bad habits tend to occur; when they do, they often lead to scaffold-related accidents and injuries. Located right next to Chinas fifth largest lakeLake Taihu near by Shanghai, East Grace Remember, the higher the scaffolding goes the more pronounced any tilt becomes. Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. All columns shall be evaluated by a competent person to determine whether guying or bracing is needed; if guying or bracing is needed, it shall be installed. This includes inspections after adverse weather conditions, after modifications or repairs have been made to the scaffold, and after any other event that could potentially impact the scaffolds safety. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. As a standard, OSHA recommends that the crosspoint of cross bracing used as a top rail should be between 38 and 48 inches above the working platform. Non-uniform rung spacing caused by joining end frames together is allowed, provided the resulting spacing does not exceed 16 3/4 inches (43 cm). The end points at each upright shall be no more than 48 inches (1.3 m) apart. What's Included (1) Base plate. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. However, where the employer can demonstrate that it is not possible to place an outrigger beam perpendicular to the face of the building or structure because of obstructions that cannot be moved, the outrigger beam may be placed at some other angle, provided opposing angle tiebacks are used. When lanyards are connected to horizontal lifelines or structural members on a single-point or two-point adjustable suspension scaffold, the scaffold shall be equipped with additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in the event one or both of the suspension ropes fail. Note to paragraph (b)(2)(i): Pursuant to an administrative stay effective November 29, 1996 and published in the Federal Register on November 25, 1996, the requirement in paragraph (b)(2)(i) that roof bracket scaffolds be at least 12 inches wide is stayed until November 25, 1997 or until rulemaking reguarding the minimum width of roof bracket scaffolds has been completed, whichever is later. They are frequently used in one or two tiers by residential contractors, painters, etc., but their modular frames can also be stacked several stories high for use on large-scale construction jobs. In addition, be aware that ladders are also require on scaffolding. These employees should be protected by using both . Correct procedures for erecting, disassembling, etc. 1926.755 - Column anchorage. | Occupational Safety and Health In other words, you can't take a frame scaffold and just set it on the ground or even on concrete. The capacity refers to the load that the scaffold can safely hold. Height Injuries. Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. ( a) of sound material, good construction and adequate strength; ( b) free from patent defects; and. Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. In addition to meeting the requirements of 1926.502(d), personal fall arrest systems used on scaffolds shall be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. Here are the highlighted rules of OSHA's scaffolding standard: 1. [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. Each section of the framework measured 6'5" high. You must use base plates on concrete, and leveling jacks , OSHA 29 CFR 1926.451: Scaffold General Requirements OSHA 29 CFR 1910.28 What are the main components to scaffold footing? This provision does not preclude the use of common support members, such as "T" sections, to support abutting planks, or hook on platforms designed to rest on common supports. [, Non-mandatory examples of criteria that will enable an employer to comply with, Scaffolds are to be erected, moved, dismantled, or altered only by experienced and trained employees who have been selected for that work by the competent person. It should be filled, decked, or planked with proper guardrails and mid rails. General requirements for erection stability. Scaffold User in Construction Learning Objectives Objectives: OSHA Standard for Scaffold users, 29 . 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. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. The ends of stairrail systems and handrails shall be constructed so that they do not constitute a projection hazard. Fall protection. Scaffolding Operator Safety Checklist It helps you collect data electronically and in real-time to quickly identify issues and take corrective action. [, Stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing. Minimum Mud Sill Size. Front-end loaders and similar pieces of equipment shall not be used to support scaffold platforms unless they have been specifically designed by the manufacturer for such use. For a strong foundation, use the appropriate base plates, mud sills, and adjustable screw jacks on solid ground. base plate; 1-3/8 in. Gasoline-powered equipment and hoists shall not be used on suspension scaffolds. Guys, braces, and ties provide additional support to scaffolds. GBCA Safety Toolbox Talk: Scaffold Foundations Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. Platforms shall not deflect more than 1/60 of the span when loaded. The toprail of each stairrail system shall also be capable of serving as a handrail, unless a separate handrail is provided. Training shall include [. Anchor rods (anchor bolts) shall not be repaired, replaced or field-modified without the approval of the project structural engineer of record. Even with a base plate or screw jack, it also needs a wooden mud sill if it's going to be setting on dirt, gravel, grass etc. frames, and uprights must bear on base plates and mud sills, or other adequate firm foundation. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with paragraph (a) of this section. Safe points of anchorage include structural members of buildings, but do not include standpipes, vents, other piping systems, electrical conduit, outrigger beams, or counterweights. In addition to the normal operating brake, suspension scaffold power-operated hoists and manually operated hoists shall have a braking device or locking pawl which engages automatically when a hoist makes either of the following uncontrolled movements: an instantaneous change in momentum or an accelerated overspeed. is allowed to accumulate on the platform. Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations, and to prevent snagging of clothing. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. Bearer: A horizontal member of a scaffold upon which the platform unit rests and that may be supported by runners. Suspension ropes supporting adjustable suspension scaffolds shall be of a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. 1. . Cross Bracing is a technique that involves crossing braces to support framed structures such as scaffoldings. 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. Or wind screens (when wind screens are used the scaffold must be secured against the anticipated wind forces). Provides illustrated safety checklists for specific types of scaffolds. Scaffolds 4 levels or less in height. 3691K. Construction Scaffolding Safety & OSHA Requirements & Regulations Counterweights shall be made of non-flowable material. Also, note that the planks are bowing because the bricks are loaded at one point on the platform instead of being evenly distributed. Mini Scaffolding Uk Scaffold Leveling Screw To be used at the base if the scaffold.The adjustable height allow to compensate for possible unevenness and level differences in the ground. 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. The portion of the tail line that hangs free below the scaffold shall be guided or retained, or both, so that it does not become grounded; Each hoist shall be covered with insulated protective covers; In addition to a work lead attachment required by the welding process, a grounding conductor shall be connected from the scaffold to the structure. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. Heat damage caused by a torch or any damage caused by contact with electrical wires. It can also be used with the leveling jack with socket end. OSHA standards are mandatory requirements that employers must comply with to ensure the safety of their workers. Crossbracing is acceptable in place of a midrail when the crossing point of two braces is between 20 inches (0.5 m) and 30 inches (0.8 m) above the work platform or as a toprail when the crossing point of two braces is between 38 inches (0.97 m) and 48 inches (1.3 m) above the work platform. Each ladder jack scaffold, top plate bracket scaffold, roof bracket scaffold, and pump jack scaffold shall be at least 12 inches (30 cm) wide. Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. 9. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). When erecting or dismantling tubular welded frame scaffolds, (end) frames, with horizontal members that are parallel, level and are not more than 22 inches apart vertically may be used as climbing devices for access, provided they are erected in a manner that creates a usable ladder and provides good hand hold and foot space. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substance being used. The top edge height of toprails or equivalent member on supported scaffolds manufactured or placed in service after January 1, 2000 shall be installed between 38 inches (0.97 m) and 45 inches (1.2 m) above the platform surface. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills or other adequate firm foundation. Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected by a personal fall arrest system or wind screens. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. Installed protective coverings to prevent accidental contact with the lines. Maximum load and load-carrying capacities of scaffolds. Install outriggers to increase the rolling scaffold's base dimensions. Keep in mind that OSHA states that a professional registered engineer must design scaffolds more than 125 feet in height above the base. Ensure the appropriate guardrails are present on the platform. The number one scaffold hazard is worker falls. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s). Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. Beware of muddy scaffold boards. 6" x 6" base size. Steel or plastic banding shall not be used as a toprail or midrail. These employees should be protected by using both . Scaffold safety requirements for platform construction. NO.9. At least three and one-half inches (9 cm) high from the top edge of the toeboard to the level of the walking/working surface. Tiebacks shall be equivalent in strength to the suspension ropes. Such activities shall be performed only by experienced and trained employees selected for such work by the competent person. 18 ft complete Safeclimb Baker Tower. Oregon OSHA allows 12-inch widths for ladder jack, top-plate (carpenter's) bracket, roof bracket, and pump-jack scaffolds. Scaffolding - Standards - Occupational Safety and Health Administration All guys, ties, and braces should be properly installed, and OSHA requires that they be inspected regularly to ensure that they are in good condition. 8. SCAFFOLD BASE PLATE. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. 10 OSHA Scaffolding Requirements | SafetyCulture Crossbraces shall not be used as a means of access. Each scaffold platform and walkway must be at least 18 inches (46 cm) wide. [, Portable, hook-on, and attachable ladders must be positioned so as not to tip the scaffold. x 12 . Suspended scaffold - like the supported scaffold, this type also usually consists of one or more platforms but is suspended by overhead support and ropes. The stall load of any scaffold hoist shall not exceed 3 times its rated load. 317K. 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