Drywall Types, Thickness, and Finish Levels

Standard drywall handles most walls and ceilings, but the right board depends on the room. Moisture-resistant (green board) belongs in bathrooms and other humid areas. Mold-resistant board suits below-grade Metro Detroit basements where dampness is a risk. Fire-rated (Type X) is required between a garage and living space and in certain assemblies. On thickness, 1/2" is the everyday standard for walls; 5/8" is used for ceilings (it resists sag) and where fire rating or extra sound control is needed. Matching the board to the location is part of doing the job right, not an upsell.

The reason a patch stands out is almost always texture, not the patch itself. Walls and ceilings carry a finish — smooth, orange peel, knockdown, or skip trowel — and a repair has to replicate it to vanish. A skilled finisher reads your existing texture and reproduces it with the right tools and spray, feathering it into the surrounding area. This is one of the truest tests of a real drywall pro: a handyman patch is often flat where the wall is textured, and it shows under every paint job thereafter.

The industry defines finish in levels, and specifying the right one matters. Level 4 — taped, three coats over joints, sanded smooth — is the standard for walls getting flat or eggshell paint. Level 5 adds a thin skim coat over the entire surface and is the premium choice for walls under glossy paint or strong raking light, where every imperfection shows. Lower levels are for utility spaces like garages. For a repair to blend, the patched area should be finished to at least the level of the surrounding wall, which a good finisher confirms before starting.