Description
Rolled top on all standard area walls
12, 18, 24, and foundation vent area walls have rounded top and bottom corners for extra safety
Stamped from single steel sheet
Bright finish reflects light into basement
Holes in flanges for bolting to wall
Deep corrugation stiffens against back fill
Minimum G-60 galvanized coating
All back filling should be done gradually to prevent excessive pressure against area wall
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