Drywall Mud & Tape Calculator

Enter your drywall board area and finish level to get pounds and gallons of joint compound plus feet of tape — with the taping section shown.

Inputs
sq ft
Results update as you type — no submit
ResultsLIVE
Joint compound
71 lb
≈ 32 kg · 5.1 gal
Ready-mix compound5.1 gal (2 × 4.5-gal cartons)
Joint tape185 ft (1 roll)
Board area500 sq ft
Formula
compound = 500 sq ft × 3 coats → 71 lb (5.1 gal) · tape = 185 ft
Diagram — taped joint (section)NTS
TAPE + MUD3 COATSSECTION · TAPERED JOINT · 71 LBMEASURESHEDMUD 71 LBTAPE 185 FT
MeasureShedmeasureshed.com/calculator/drywall-mud-calculator
Drywall mud & tape — material listUNITS: FT · SCALE: NTS
Inputs
Board area500 sq ft
CoatsTape + 2
Waste+0%
Results
Joint compound71 lb
Ready-mix5.1 gal (2 cartons)
Joint tape185 ft
Taped joint (section)NTS
TAPE + MUD3 COATSSECTION · TAPERED JOINT · 71 LBMEASURESHEDMUD 71 LBTAPE 185 FT
Shopping list
☐ 71 lb joint compound (2 cartons)
☐ 1 × joint tape roll (250 ft)
Formula
compound = 500 sq ft × 3 coats = 71 lb
tape = 185 ft
Estimates for planning only — verify before purchaseSHEET 1 OF 1
How it works

Finishing drywall takes joint compound (mud) and paper tape, and both scale with the board area, not just the joint length — every coat is spread across the seams and screw dimples over the whole surface. Enter the board area from the drywall calculator and pick a finish level, and this tool estimates the compound and tape.

Compound is the bigger number. Using the USG carton estimate, ready-mix all-purpose compound runs about `0.047 lb` per square foot per coat, so a standard tape-plus-two-coat Level 4 finish (three passes) is about `0.14 lb` per square foot — which lines up with a `4.5 gal` carton finishing roughly `450 sq ft`. Ready-mix weighs about `13.7 lb` per gallon, so the tool also reports gallons and cartons. Tape runs about `0.37 linear ft` per square foot of board, sold in `250 ft` and `500 ft` rolls.

A Level 5 finish adds a skim coat over everything and uses noticeably more mud; bump the coats to "tape + 3" for that. All counts round to whole cartons and rolls, because that is how you buy them.

Worked example
Board area 500 sq ft · tape + 2 coats (3 passes) · +0%
compound = 500 × 0.047 × 3 = 70.5 lb ≈ 5.2 gal (2 × 4.5-gal cartons)
tape = 500 × 0.37 = 185 ft ≈ 1 roll (250 ft)
Questions about mudding & taping
About 0.14 lb per square foot of board for a standard tape-and-three-coat finish — roughly 70 lb, or 5 gal, per 500 sq ft. A skim-coated Level 5 finish uses more; pick "tape + 3" to add a pass.
SOURCES — USG Sheetrock joint-compound coverage & carton yields
Estimates for planning only — verify before purchase
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