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Platform ladder, a step ladder with a large platform area and a top handrail for the user to hold while working on the platform. Retractable ladder, a ladder that looks like a drainpipe but can be deployed instantly when required. Roof ladder, a rigid ladder with a large hook at the top to grip the ridge of a pitched roof.
Mobile safety steps, sometimes called warehouse steps, are mobile structures with steps up to a platform. The steps use wheels or casters , making them easy to move. They have the advantage over standard ladders in that the operative can have one hand free when moving up and down the steps and both hands free if there is a top-level platform.
Stand-off brackets: Dictated by OSHA Standard 1910.27(c)(4) stand-off brackets must be at least 7" (180 mm) longer than the farthest obstruction for clearance on the back side of ladder. This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least ...
Step stool with 2 steps. Step stools are halfway between a ladder and a stool, being used, as a support platform, for reaching targets that are at heights between approximately 2 and 3 metres (6.6 and 9.8 ft). The most common modern type is made with two separate ladders connected to each other at the upper end, where there is a platform with ...
Wall framing in house construction includes the vertical and horizontal members of exterior walls and interior partitions, both of bearing walls and non-bearing walls. . These stick members, referred to as studs, wall plates and lintels (sometimes called headers), serve as a nailing base for all covering material and support the upper floor platforms, which provide the lateral strength along a
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