How to Install Drywall

Drywall is the backbone of modern interior walls—it's what stands between your studs and a finished room. Getting it right means flat seams, solid fastening, and a surface that accepts paint or texture without telegraphing every imperfection underneath. Most homeowners can handle the hanging phase, but mudding and finishing is where patience and technique separate amateur work from work that disappears into the background. If your framing is square and your fasteners are properly set, the rest becomes manageable repetition.

1. Square the Frame First. Check that all studs are plumb and spaced at 16 inches on center. Drive any protruding nails flush or remove them. Mark locations of pipes, wires, and outlets on the studs with a pencil so you know where to avoid driving fasteners. Measure and mark where you'll cut openings for outlets and switches—accuracy here saves frustration later.
2. Map Your Grid. Chalk a horizontal line 48 inches from the floor (or the height of your first full sheet) running the length of the wall. This ensures seams fall on studs and gives you a reference for straight rows. Snap vertical lines at stud centers every 48 inches to guide sheet placement horizontally.
3. Lift and Lock First Sheet. Use a drywall lift or a T-brace to hoist the sheet into position, fitting it snug against the ceiling or top track. Align one edge with a chalk line. Have a helper hold it square while you check that it sits flush against all studs. Leave a quarter-inch gap at the floor for clearance—baseboard and flooring materials will cover it.
4. Dimple, Don't Bury. Drive 1¼-inch drywall screws through the sheet into studs, placing them 12 inches apart vertically and 16 inches horizontally. Space screws 1 inch from edges and 2 inches from corners. Bury the screw head just below the surface—it should create a small dimple, not puncture the paper. Use a drill-driver with an adjustable clutch to avoid overwinding.
5. Measure Twice, Cut Once. Measure the opening for the next sheet, subtract a quarter-inch for clearance, and mark the cut on the face side. Score the paper with a drywall knife, snap the core against the edge of a table or workbench, and cut the paper on the back. Fit outlets and switches by measuring from adjacent studs and the floor, marking the hole on the back, and cutting carefully with a drywall saw. Hang each sheet the same way—snug, level, fasteners every 12-16 inches.
6. One Pass, Then Wait. Apply a thin layer of joint compound with a 6-inch knife over the screw dimples. Let it dry fully (4-8 hours or overnight). Apply fiberglass tape over seams, pressing it into a thin bed of compound. Use a 10-inch knife to spread compound over the tape in one smooth motion, feathering the edges out 4-6 inches. Apply two more coats, letting each dry and sanding lightly between coats. Final coat should be feathered 8-10 inches and nearly invisible.
7. Smooth It Invisible. Once all coats are fully dry, sand seams lightly with 120-grit paper, using an orbital sander or a sanding pole to reach high walls without a ladder. Wipe dust with a damp sponge—don't leave residue. Touch up any low spots with a thin final coat if needed, dry, and sand again. Vacuum the room thoroughly, then wipe walls with a tack cloth to remove all dust.
8. Prime Catches Everything. Apply a coat of drywall primer—it seals the dried compound and ensures uniform paint absorption. Once dry, inspect under good light at an angle to catch imperfections. Fill any pinholes or remaining low spots with spackle, sand flush, and prime again if needed. Only then apply finish paint.