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Glass-mat gypsum cover board, 1/4"

Its weight

The table
119 lb a squareThe sources give 119 to 125 lb.
Loose volume
Not known: it counts in the tons aloneNo source found gives a loose volume for torn-off gypsum cover board.
How it was chosen
DensDeck Prime 1/4" weighs 1.19 lb a square foot (Johns Manville's chart) or 1.2 (Kingspan's sheet); DEXcell 1/4" 1.25. The figure is 119 lb.

Your figure

None: estimates use the table's.

Give your own figure
For each square of roof, or each sheet of decking.
Loose, as it lands in the dumpster, for each square or each sheet.
Your scale tickets, your hauler's figures: what a reader would check it against.

2 sources

  1. RS-9417 Product Weight Charts (10-25)

    Johns Manville · manufacturer spec sheet · read 2026-10-23

    Gypsum Cover Boards: "JM DensDeck Prime Roof Board 1/4" 1.19" "JM DEXcell Glass Mat Roof Board 1/4" 1.25" (nominal weight lb/ft²)

    The document An archived copy

  2. DensDeck Prime Roof Board, Technical Data Sheet (US, issue 1)

    Kingspan (DensDeck) · manufacturer spec sheet · read 2026-10-23

    "Weight, nominal lbs./sq. ft. (kg/m2)": 1/4" "1.2 (5.9)", 1/2" "2.0 (9.8)", 5/8" "2.5 (12.2)"

    The document