Cost to Drywall 100 Square Feet:
$150 to $350 (and Why That Number Lies on Small Jobs)
The per-square-foot rate works at scale. On a 100 sqft job (a closet, a pantry, half a partition wall) it breaks down completely. Here is what you will actually pay, why most contractor quotes look strangely high, and when it is worth DIYing instead.
What 100 Square Feet of Drywall Actually Is
100 square feet of drywall surface area is roughly four 4x8 sheets, accounting for 10 to 15 percent waste from cuts and trim. In residential terms that is enough to cover both sides of a 12-foot partition wall at 8-foot height (192 sqft surface), one side of a typical bedroom closet rebuild including the door wall (around 90 sqft surface), the back and one side wall of a 10x10 bedroom (160 sqft surface), or a pantry retrofit including both walls and a small section of ceiling (around 110 sqft surface).
The most common 100 sqft scenarios that homeowners face: replacing one full wall of damaged drywall after a plumbing leak, creating a new partition wall to divide a bedroom into two, drywalling around a new alcove or built-in, or finishing a small bonus room over a garage that was framed but never finished. These jobs are too small for a contractor to schedule efficiently, which is exactly why the pricing economics work the way they do.
Why the Per-Sqft Maths Breaks at This Size
The national average of $1.50 to $3.50 per square foot is an honest figure for jobs in the 500 to 2,000 sqft range. Below that, the per-sqft maths leaves out the call-out fee structure that small drywall jobs really run on. A drywall crew that shows up to your house has a minimum profitable visit, typically two to three hours of work plus drive time plus the cost of stocking materials. If you only have 100 sqft for them to hang and finish, they finish in two hours, sit on the clock until the mud sets to start coat two, and the maths becomes lousy unless they charge a minimum.
That minimum runs $300 to $500 in most US metros, $500 to $750 in coastal markets like the Bay Area, NYC, or Boston. It is not a markup, it is the cost of a half-day crew visit. The implication for budgeting: stop comparing a 100 sqft quote to the per-sqft national rate and start comparing it to the minimum-visit fee. A $450 quote for 100 sqft is normal. A $200 quote is suspicious (probably an unlicensed handyman or a contractor missing materials in the scope).
One way to make the per-sqft maths work in your favour: combine multiple small jobs into one visit. If you have three rooms that each need 80 sqft of patch and replace, ask a contractor to quote all three as a single 240 sqft scope. The crew sets up once, runs mud cycles once, and the per-job overhead drops sharply. You can save 25 to 40 percent versus three separate visits.
The DIY Material List for 100 Sqft
For most homeowners with basic tools, DIYing a 100 sqft drywall job is the right answer. The material list is short, the techniques are forgiving at this scale, and the worst-case quality issue (a visible joint or a slight bump) is easy to sand out or patch later. Here is the exact bill of materials at current Home Depot and Lowe's pricing.
| Item | Quantity | Cost | Notes |
|---|---|---|---|
| 1/2" drywall sheet (4x8) | 4 sheets | $48 to $60 | $12 to $15 per sheet |
| All-purpose joint compound | 1 x 5-gal bucket | $15 to $20 | Pre-mixed is easier than powdered for a small job |
| Paper drywall tape | 1 x 250-ft roll | $5 to $8 | Mesh tape works too, slightly easier for beginners |
| Drywall screws (1-5/8") | 1 x 1-lb box | $8 to $12 | Roughly 250 screws, plenty for 4 sheets |
| Corner bead (metal, 8 ft) | 1 to 2 sticks | $2 to $8 | Only if your job has outside corners |
| Drywall primer | 1 quart | $10 to $15 | PVA primer before paint |
| Total materials | $88 to $123 | All from one Home Depot trip |
Tools you need but probably already own: a cordless drill, a utility knife, a tape measure, a 4-foot straightedge or T-square, a 6-inch and a 10-inch taping knife, a sanding sponge or pole sander, dust mask, and safety glasses. If you do not own a taping knife, both are under $10 each at Home Depot. A pole sander makes the sanding step dramatically less terrible and runs $20 to $30.
Timeline: A 100 Sqft DIY Drywall Job Over Three Days
The reason a 100 sqft job takes three days (not three hours) is that joint compound needs to dry between coats. The active labour is only 6 to 10 hours total, but you cannot compress it. Plan accordingly.
- Day 1 evening (2 to 3 hours): Cut and hang all four sheets. Score with utility knife, snap, finish-cut the back paper. Screw to studs every 16 inches, leaving the screw head sunk just below the paper surface without breaking the paper.
- Day 1 evening (1 hour after hanging): Tape and embed all joints in the first coat of mud. Apply mud to the joint with the 6-inch knife, lay the tape on, draw the knife back over to embed the tape, scrape excess. Cover screw heads with a thin pass of mud.
- Day 2 evening (1 hour): Apply the second coat of mud, wider this time (use the 10-inch knife), feathering the edges. Cover screw heads again. Wait overnight.
- Day 3 morning (30 minutes): Apply the third and final thin coat, feathering very wide. This is the "skim" pass that hides the joint.
- Day 3 evening (1 to 2 hours): Sand. Use a pole sander or sanding sponge with 150 grit. Wear a mask. Run a light at a low angle across the wall to find imperfections, mark with a pencil, hit them again with the sander.
- Day 4 (whenever): Prime with PVA primer. Paint when dry.
Compare that to hiring out: a contractor charges for a one-day visit but the calendar time is still three days because of the mud cycles. The two main differences are that you do not personally have to sand (the worst part), and you do not have to learn the feathering technique. For a single 100 sqft job in your own home, learning is worth the time saved on this job and on every future repair you do not need to hire out.
When a 100 Sqft Job Justifies Hiring a Contractor
DIY is the default recommendation at this size, but four specific scenarios change the calculus. The first is any ceiling work. Hanging a sheet overhead by yourself is unsafe (the sheet weighs 50 to 85 pounds and you have no third hand to hold it in place while you screw it). Finishing overhead is the physical task most DIYers describe as "I will never do that again" after the first attempt. If your 100 sqft job is a ceiling repair, hire it out. Budget $400 to $700.
The second is texture matching on a repair. If your wall has orange peel, knockdown, or skip trowel finish from the original build, matching that texture on a patch is a craft skill that takes years to develop. A drywall finisher can match in 20 minutes what would take you three failed attempts. Budget $250 to $400 for a 100 sqft texture-matched patch.
The third is mould-prone areas. If your 100 sqft job is replacing water-damaged drywall in a bathroom, basement, or laundry, the right material is moisture-resistant board and the framing needs to be confirmed dry. Hiring out includes the moisture-meter inspection and the right material spec. Budget $400 to $800 for a 100 sqft water-damage replacement, with full pricing on the water-damaged drywall page.
The fourth is when the job is part of a larger remodel. If a general contractor is already on site doing your bathroom or kitchen, having them include the 100 sqft of drywall in the master scope adds maybe $300 to $500. Splitting it out and doing it yourself afterwards adds friction and risk of scheduling conflict. Just include it.
How 100 Sqft Compares to the Other Common Job Sizes
The economics flip as the job grows. At 100 sqft the DIY case is overwhelming. At 1,000 sqft the contractor case wins on time alone. Here is the size ladder:
| Job size | Contractor | DIY materials | Right answer for most |
|---|---|---|---|
| 100 sqft (this page) | $300 to $500 | $60 to $100 | DIY unless ceiling |
| 500 sqft | $750 to $1,750 | $280 to $400 | DIY for handy homeowners, hire out otherwise |
| 1,000 sqft | $1,500 to $3,500 | $550 to $750 | Hire out, time savings dominate |
| 2,000 sqft | $3,000 to $7,000 | $1,100 to $1,500 | Hire out always |
Frequently Asked Questions
How many sheets of drywall for 100 sqft?
Four 4x8 sheets covers 128 sqft, which gives you about 25 percent extra for waste from cuts. Always round up. If your layout has lots of small cuts (windows, outlets), buy five sheets to be safe.
Can I really get a contractor to come out for just 100 sqft?
Yes, but expect a minimum-visit fee of $300 to $500. The contractor is charging for half a day of crew time, not for the per-sqft labour. The same crew would charge $1,200 for 500 sqft, so the per-sqft rate at 100 sqft is dramatically higher than the published national average.
How long does 100 sqft of drywall take a pro to install?
Active labour is 3 to 5 hours including hang, tape, and three mud coats. Calendar time is still three days because of mud drying. A pro shows up on day one for hang and first coat, day three for the third coat and sanding.
Is it cheaper per sqft to do a smaller job?
No. The per-sqft rate is highest on the smallest jobs because the call-out and setup costs are fixed. A 100 sqft job effectively pays $3 to $5 per sqft once minimums apply, versus the $1.50 to $3.50 national rate for 500 sqft and up.
Do I need a permit for 100 sqft of drywall replacement?
Usually no, but check your jurisdiction. Most local codes only require a permit if more than one wall or more than 100 sqft is being structurally altered. A single-wall replacement without changing framing is almost always permit-exempt. If the work involves any electrical or plumbing, those trades trigger their own permits.