TL;DR
Gypsum board is the wall and ceiling panel made of a calcined gypsum core sandwiched between paper faces, sold as drywall in 4-foot widths and thicknesses of 1/4 to 5/8 inch. The 5/8-inch Type X core is formulated with glass fibers for fire-rated assemblies such as garage-to-house walls, while moisture-resistant green or purple boards serve baths and mold-prone areas.
What it means
Gypsum board is the wall and ceiling panel made of a calcined gypsum core sandwiched between paper faces, sold as drywall in 4-foot widths and thicknesses of 1/4 to 5/8 inch. The 5/8-inch Type X core is formulated with glass fibers for fire-rated assemblies such as garage-to-house walls, while moisture-resistant green or purple boards serve baths and mold-prone areas. It hangs with screws into framing, then joints are taped and finished with compound to a smoothness level rated 0 through 5.
Where it sits in the glossary
Gypsum board is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
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