Free Estimating Tool

Drywall Sheet Calculator

Enter your room dimensions and instantly see how many 4×8 sheets you need, plus a realistic material and labor cost range for San Diego.

No signup required Multi-room support San Diego pricing Built by drywall pros
📏 Project Calculator INSTANT RESULTS
Project Type
Room Dimensions
Options
✅ Your Estimate Results
Total Sq Ft
Sheets Needed
Material Est.
Total Est.
Low-end total
High-end total

Estimates based on San Diego market rates. Material: $14–$20/sheet. Labor: $1.50–$2.75/sq ft. Tape, mud, and texture quoted separately.

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Common Project Sheet Counts
🔨Water Damage Patch
2–6 sheets
Ceiling or wall section after leak or pipe burst. Usually 1–2 rooms, walls only. Fast turnaround.
🛏Master Bedroom + Bath Redo
18–28 sheets
Full strip and rehang for a master suite and attached bathroom. Standard 9 ft ceilings, walls + ceiling.
🍴Kitchen Remodel Drywall
8–16 sheets
Access panels for plumbing/electrical plus new hung sections after cabinet removal. Often moisture-resistant board.
🏠Full Home (3-bed / 2-bath)
65–95 sheets
Complete hang on a typical 1,400–1,800 sq ft San Diego home. Includes all walls and ceilings, standard 9 ft.
RoomTypical SizeWall AreaCeiling AreaSheets (walls+ceil)
Small Bedroom10 × 10 ft280 sq ft100 sq ft12–14 sheets
Standard Bedroom12 × 12 ft336 sq ft144 sq ft15–18 sheets
Master Bedroom14 × 16 ft390 sq ft224 sq ft20–24 sheets
Full Bathroom8 × 10 ft230 sq ft80 sq ft10–12 sheets
Kitchen12 × 14 ft364 sq ft168 sq ft17–21 sheets
Living Room16 × 20 ft468 sq ft320 sq ft25–30 sheets
Garage (2-car)20 × 22 ft588 sq ft440 sq ft32–38 sheets
Frequently Asked Questions
How many square feet does a 4×8 sheet of drywall cover?
One standard 4×8 sheet covers 32 square feet of surface area. Because you lose material to cuts around doors, windows, outlets, and corners, always add a waste factor — 15% is standard for most rooms, and 20% for spaces with lots of angles or openings.
Should I use 4×8 or 4×12 drywall sheets?
4×8 sheets are the easiest to carry and are the standard for most residential repairs and remodels. 4×12 sheets reduce the number of seams on long walls — ideal for open living spaces or rooms with 9-foot ceilings where you can run the board horizontally. Garages often use longer sheets to minimize butt joints.
What does drywall installation cost in San Diego?
In San Diego, drywall materials typically run $14–$20 per sheet depending on thickness and type. Labor for hanging runs $1.50–$2.75 per square foot, and taping/finishing adds another $1.00–$2.00 per square foot. For a full room including hang, tape, and texture, budget $3.50–$5.50 per square foot total — not including paint.
Do I need special drywall for bathrooms or kitchens?
Yes. Wet areas like bathrooms and kitchens should use moisture-resistant (green board) or cement board behind tile. Standard drywall is fine for the remaining walls, but any surface that could see splash or humidity should be upgraded. In San Diego's coastal homes, this is especially important near ocean-facing walls.
How much should I add for waste when buying drywall?
Add 10% for simple rectangular rooms with no unusual features. Use 15% — the standard — for typical rooms with doors, windows, and outlets. Go up to 20% for rooms with vaulted ceilings, lots of angled walls, arched openings, or rounded corners. It's always better to have one extra sheet than to make a second hardware store run mid-job.
Can this calculator handle HVAC or water damage repairs?
Yes — for access panel patches and water damage repairs, use the "Patch & Repair" project type and enter only the dimensions of the area being repaired. For a single ceiling section, enter a small room with L × W matching the damaged patch. If you're not sure how much drywall you need, get a free quote from SGP Drywall and we'll scope it on-site.

Ready for an Exact Quote?

The calculator gives you a solid ballpark. For a precise number — we scope the job, check framing, and give you a written estimate.

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