Fire-Rated Drywall in Greenville, SC
Fire-rated drywall (Type X) installation in Greenville, SC costs about $0.20 to $0.40 per square foot more than standard drywall and is required by Greenville County building code on attached garage walls and ceilings, multi-family demising walls, and most commercial fire assemblies. We install code-compliant Type X and Type C assemblies with fire-tape detailing that passes inspection on the first walk.
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What Is Fire-Rated Drywall?
Fire-rated drywall (Type X) is 5/8-inch gypsum board with glass fibers added to the gypsum core that hold the panel together longer in a fire. A standard one-hour fire-rated wall assembly is a single layer of 5/8-inch Type X over wood or metal studs. Two-hour assemblies typically use double layers. Greenville County (and most of South Carolina) requires Type X on the wall between an attached garage and the living space, on the garage ceiling under living space, on multi-family demising walls, around stairwells, and in any commercial assembly that requires a fire rating.
Fire-Rated Drywall Cost in Greenville, SC
Type X drywall costs about $14–$22 per panel vs $9–$14 for standard 1/2-inch — about $0.20 to $0.40 per square foot more installed. Two-hour assemblies cost roughly double the per-square-foot rate of one-hour because of the extra layer. Most residential fire-rated work is single-layer Type X on garage walls and ceilings.
Our Fire-Rated Drywall Process
- 1Confirm UL assembly number on plans (or per code reference for residential garage).
- 2Hang 5/8-inch Type X with screws every 8 inches on ceilings, 12 inches on walls.
- 3Tape all seams, including fire-taping where the rated assembly requires.
- 4Three-coat Level 4 finish.
- 5Document for inspector: panel type, fastener pattern, assembly compliance.
- 6Walk inspection.
Why Choose Professional Fire-Rated Drywall in Greenville?
Fire-rated drywall isn't optional — it's code, and inspectors check fastener pattern, panel type, and assembly detail. We install to UL assembly spec, document for the inspector, and don't get red-tagged. For commercial work we coordinate UL assembly numbers directly with the architect.
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