Reinforcement for a steel deck opening with a maximum dimension of two feet consists of L 1 1/2 inch by 1 1/2 inch by 1/4 inch angles. Angles are secured with a 1/8 inch fillet weld at a 2 inch length, per project notes. The assembly maintains a 1 inch clearance from the opening edge to the framing members. The layout is symmetrical about both axes, with a minimum spacing of 2 feet between adjacent openings.
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