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Fixed ladders consist of the following components: Rungs : all fixed ladders have rungs, dictated by OSHA Standard 1910.27(b)(1) of no more than 12" (300 mm) on center (measured as the distance from the centerline of a rung to the center line of the next rung), and at 16" (410 mm) clear width.
A ladder standoff, or stay, is a device fitted to the top of a ladder to hold it away from the wall. This enables the ladder to clear overhanging obstacles, such as the eaves of a roof, and increases the safe working height for a given length of ladder because of the increased separation distance of the two contact points at the top of the ladder.
Steeplejacks erect ladders on church spires, industrial chimneys, cooling towers, bell towers, clock towers, or any other high structure.In the UK, steeplejacks now use a belay rope fall-arrest system (similar to the method used by rock climbers) attached to the ladders as they are erected to eliminate solo climbing and greatly reduce the risk of falls from height.
The British version was a conventional two-string ash ladder around 4 metres (13 ft) long and 25 centimetres (10 in) wide. Hook ladders can be used to scale from floor to floor on multi-storey buildings by way of exterior windows. The ladders hook onto the window ledge by a "gooseneck" projecting from the top.
Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
A firestop or fire-stopping is a form of passive fire protection that is used to seal around openings and between joints in a fire-resistance-rated wall or floor assembly. . Firestops are designed to maintain the fire-resistance rating of a wall or floor assembly intended to impede the spread of fire and