The stair stringer connects to a channel support beam sized per structural drawings. The assembly is secured using two three-quarter-inch diameter ASTM A325 galvanized bolts. Grating sits flush with the top of the stair nosing at the finished floor level.
(2) Ø3/4" BOLTS, A325, GALV T/O GRATING 5" 3" 1" STAIR STRINGER STAIR TREAD BEAM, C-SHAPE PER STRUCTURAL GRATING TOP STAIR NOSING
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