Drywall looks simple to price — it's just square feet — but hanging and finishing are two different jobs, and the finish level the customer expects can change the labor a lot. This guide walks through both.
The short version. Add up wall and ceiling area, add waste, and round up to full sheets. Price hanging and finishing as separate lines, and write the finish level on the proposal.
1. Measure the board area
- Walls: room perimeter × wall height.
- Ceilings: length × width.
- Openings: many hangers board right over doors and windows and cut them out, because the offcuts are waste anyway. Subtract only large openings like garage doors or wide pass-throughs.
2. Count the sheets
| Sheet size | Covers |
|---|---|
| 4 × 8 ft | 32 sq ft |
| 4 × 10 ft | 40 sq ft |
| 4 × 12 ft | 48 sq ft |
Longer sheets mean fewer seams to tape, but they're heavier and harder to get into tight spaces. Add about 10% to 15% for waste — more for rooms with lots of angles or small walls.
Example (illustrative): a 12 × 14 ft room with 8 ft walls, using 4 × 12 sheets.
| Step | Math | Result |
|---|---|---|
| Walls | 52 ft perimeter × 8 | 416 sq ft |
| Ceiling | 12 × 14 | 168 sq ft |
| Total board | 416 + 168 | 584 sq ft |
| Plus 10% waste | 584 × 1.10 | 642 sq ft |
| Sheets | 642 ÷ 48 = 13.4, round up | 14 sheets |
3. Add finishing materials
- Joint compound and tape: use the coverage on the bucket and roll. Manufacturers publish how much you need per 1,000 sq ft of board.
- Screws: roughly one screw per square foot of board is a common planning number.
- Corner bead and trim: measure outside corners and edges in linear feet.
- Moisture- or mold-resistant board for bathrooms and other damp areas, and fire-rated board where your local code calls for it (garages next to living space are a common one).
4. Price hanging and finishing separately
Hanging and finishing take different skills and different time, and many crews split them. Pricing them as separate lines also shows you which part ran over.
Things that slow the work down:
- High ceilings and stairwells that need scaffolding or a lift
- Lots of corners, soffits and small walls
- Carrying sheets up stairs or through a finished house
- Drying time between coats, which can mean extra trips
5. Write the finish level on the proposal
The Gypsum Association's finish levels run from Level 0 to Level 5. Two come up most on residential work:
| Level | What it means | Typical use |
|---|---|---|
| Level 4 | Taped, with three coats on joints and fasteners | Most walls with flat or eggshell paint |
| Level 5 | Level 4 plus a thin skim coat over the whole surface | Glossy paint, or walls hit by strong side light |
Level 5 takes noticeably more labor. If the customer expects a perfect wall under raking light and you priced Level 4, that's an argument waiting to happen.
6. Figure the labor hours
Estimate hanging and finishing separately, and count every trip. Typical hours for the 12 × 14 ft room from above, 14 sheets.
| Task | Typical labor hours |
|---|---|
| Hang 14 sheets (two people × 4 hours) | 8 |
| Tape and first coat | 4 |
| Second and third coats (two trips for drying time) | 5 |
| Sand, touch up and clean up | 3 |
| Total | 20 hours |
Labor cost = total hours × your hourly labor cost. Your hourly labor cost is the wage plus burden — payroll taxes, workers' comp and insurance. For example, a $28 wage plus 25% burden is $35 an hour. If you work alone, use the wage you pay yourself. The free labor rates by state tool shows typical wages for your trade and area.
20 hours × $35 = $700 in labor. Finishing usually takes more trips than hours — add drive time for each return visit.
These are typical hours for a straightforward job with an experienced crew. Specialty and custom design work adds hours — for example Level 5 finishes, curved walls and arches, tray or vaulted ceilings, and matching an existing texture. Price those as their own lines, so the customer sees what the extra work costs. Your own times are the best guide: write down how long each task takes on every job, and your estimates get sharper each time.
7. Add overhead and profit
Add materials and labor, then apply your overhead and profit. The free markup and margin calculator does the math, and labor rates by state shows typical wages for your area.
Tip: On repair jobs, say on the proposal whether texture matching is included. An exact texture match is hard, and it's better to agree on that before you start.
See also: Trades HQ for drywall contractors and How to Figure Your Overhead Rate.