| 10446 Grating & pit covers
Grating shall be built in mild or galvanised steel profiles, chequered or slotted plates as detailed in drawings.
Individual units shall be cut and fitted as shown in drawings.
Units shall correctly match adjacent panels and support in all directions.
Gratings shall be designed to resist the load imposed on them. Grating required to be removed for clearing or otherwise shall be paneled in manageable sizes, and provided with handles or leverage slots to ensure easy handling.
Mild steel grating shall be finished primed and painted as specified in schedule.
10447 Ladders
Ladders shall be produced from black mild or galvanised hollow or solid steel.
Ladders shall be securely welded or concrete embedded to the support. Ladders in open area shall be built clear of the ground to ensure avoidance of contract with earth. Ladder shall extend sufficient height over the platform, and shall be bent over for continuity with other rails or ladders. Ladders shall have sufficient clearance from the backing to ensure easy ascent and descent. Steps of ladders shall be securely welded to the verticals. Ladders shall be primed and finished in three coats synthetic enamel paint.
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