Glass-mat gypsum sheathing, FlameBlock, FRT plywood, FRT blocking and the barrier accessories that ride with them - measured per elevation so your envelope scope prices complete.
On framed commercial and multi-family projects, the drywall contractor's scope often runs right out to the weather: DensGlass on the exterior studs, FlameBlock where the code officials want two-sided protection, FRT plywood at parapets and blocking zones. These materials cost multiples of standard board, and they're measured off elevations and wall sections most interior takeoffs never open. We open them.
A recent package of ours carried 5,211 sheets of 5/8" DensGlass Fireguard, 678 sheets of two-sided FlameBlock, 3,140 pieces of 2x6 FRT blocking and 166 rolls of smart membrane vapor retarder - each computed from the actual coverage of the specified product, not a generic allowance. That's the level of detail your supplier prices from without a single clarifying phone call.
Envelope scopes are where trades collide - who carries the WRB, who flashes the transitions, who blocks for the signage. Our takeoffs state what's included and what's assumed by others, so your proposal's exclusions are deliberate instead of accidental. Delivered in 24 to 48 hours standard.
On light gauge framed buildings it commonly is - the same crews framing the exterior studs sheath them. We quantify it either way and label the section so you can include or exclude it deliberately.
Where the documents put it in your scope, yes - membranes, sheathing tape and transition flashings by measured area and length, with the product named.
Yes. Fire-retardant-treated material carries a very different price, so FRT blocking is always on its own lines from standard backing.
Standard delivery in 24-48 hours, rush available. Free revisions within 48 hours on every project.
Upload Your Plans