zlV2lS57x2onOIxQ7rrisR5ZEeEmPwp22961 Level 4 is the default smooth wall. Level 5 is the full-surface skim. The fight is almost never the coat count. It is critical light, sheen, dark paint, and a punch photo taken at an angle the superintendent did not stand in at noon. The document is GA-214 (Recommended Levels of Finish for Gypsum Board, … Read more
Width and length are a joint count, a lift decision, and a waste factor — not a brand preference. 48-inch (4-ft) is the default gypsum width in North America. 54-inch exists because two horizontals make 108 inches (9 ft) without a filler strip. Lengths in common mill runs are 8, 10, 12, 14, and 16 … Read more
The deck will move. Live load, concrete creep, camber coming out, a roof that ponds — the head of an interior partition is where that movement shows up. Slotted and deep-leg deflection track exist so the stud wall can stay plumb while the structure above goes up and down. Hard-screwing the gypsum to that head … Read more
Interior wallboard is a paint substrate. Exterior gypsum sheathing is a cladding substrate. Mixing those jobs is how a shop tapes DensGlass-class joints like a Level 4 corridor, or how a GC assumes the weather-resistive barrier started when the board went on. This page is for the drywall / wall-and-ceiling sub who hangs glass-mat or … Read more
Cavity batt in a steel stud is not the envelope. Steel is a thermal short. IECC and ASHRAE 90.1 name continuous insulation (ci) as insulating material continuous across structural members, uncompressed, with no thermal bridges other than fasteners and service openings — outboard, inboard, or integral to the opaque wall. That is the definition. It … Read more
A drywall sub does not buy a “drywall kit.” The hang crew, the taper, and the metal-stud foreman each run a different cart, and the mix on a production house is not the mix on a commercial corridor. This is a field-and-shop briefing on the production tools those people actually order — stilts, panel lifts, … Read more
The board on the takeoff is not “drywall.” It is a thickness, a core, a facer, and — on anything rated — a named product in a tested design. Substituting leftover 1/2-inch regular for 5/8 Type X is how a drywall sub inherits a failed inspection. This guide is for estimators and PMs who have … Read more
Finish level is how a drywall sub gets paid for smoothness — or how a shop donates a skim coat. The document is the Gypsum Association’s GA-214 (Recommended Levels of Finish for Gypsum Board, Glass-Mat and Fiber-Reinforced Gypsum Panels). Painting and wallcovering groups signed off on the same levels. National Gypsum, USG, CertainTeed, and American … Read more
On most commercial jobs the metal-stud partition is not a separate framing subcontract. It is the drywall sub’s wall: track, stud, board, and often the insulation and the head-of-wall. Residential shops meet the same members on townhomes, mixed-use, and light commercial that land on an otherwise wood bid list. This is a field and takeoff … Read more
Hanging is the part of the drywall subcontract that makes or loses the finish before the taper opens a box. This is written for crew leads and supers — residential production and commercial metal-stud — not for a first-time homeowner with a rented lift. Application and finishing of gypsum board is specified in ASTM C840 … Read more