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Estimates are planning aids verify quantities against your local codes and supplier quotes.

  1. Home
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  3. Drywall, Tile & Finishes
  4. Ceiling Texture, Popcorn & Drywall Mud Sizer
Drywall< 1 minFree to use

Drywall Calculator – Texture, Mud & Primer Estimator

Enter the surface area, pick texture style and depth bags or buckets, primer gallons, and mixing water update live.

sq ft

Texture style

Light stretches coverage ~25% · heavy cuts it ~20%.

$
$/50-lb
$
$/gal

50-lb bags to order

2

BAGS

Bill of materials+10% waste

MaterialNetWasteOrder

Knockdown 50-lb

medium application · ≈550 sq ft/unit

Net 900 sq ft · Waste +10%

900 sq ft+10%2 bags

PVA drywall primer

350 sq ft/gal · seals texture before topcoat

Net 900 sq ft · Waste —

900 sq ft—3 gal

Mixing water

≈5 gal per dry-mix bag

Net 2 bags · Waste —

2 bags—10 gal

Cost projection

Compound 2 × $22.00$44.00
Primer 3 × $28.00/gal$84.00
Total$128.00

Saved on this device · No account · No cloud

Total · $128.00

2 bags

About this tool

Medium-depth coverage: knockdown/orange peel ≈ 550 sq ft per 50-lb bag, popcorn ≈ 350 sq ft per 40-lb bag, Level 5 skim ≈ 375 sq ft per 4.5-gal bucket all with 10% waste.

How to use

Enter the surface area, pick texture style and depth bags or buckets, primer gallons, and mixing water update live.

How the math works

Light application stretches coverage ~25%; heavy cuts it ~20%.

PVA primer seals at 350 sq ft per gallon. Dry-mix bags need about 5 gallons of mixing water each; premixed buckets need none.

Formula

Units = area × 1.10 ÷ coverage

Common questions

▸How much knockdown texture do I need for a ceiling?

A 900 sq ft ceiling at medium depth needs ceil(900 x 1.10 / 550) = 2 fifty-pound bags, plus 3 gallons of PVA primer and 10 gallons of mixing water.

▸How much primer do I need for new drywall?

PVA drywall primer covers about 350 sq ft per gallon to seal raw drywall and texture before the topcoat — always prime before painting.

▸How much joint compound do I need for a Level 5 skim coat?

A 4.5-gallon bucket covers about 375 sq ft at medium depth. For 900 sq ft, ceil(990 / 375) = 3 buckets with 10% waste included.

▸How does texture depth change coverage?

A light application stretches coverage about 25%, while a heavy application cuts it about 20% — the calculator adjusts bag counts for the depth you pick.

▸Do I need water for drywall texture?

Dry-mix bags need about 5 gallons of mixing water each; premixed buckets need none. The tool totals water only for the dry-mix styles you select.

Keep estimating

Related tools

More drywall calculators for this job.

Wall Framing & Drywall PackFraming calculator for the full wall package — studs and plates plus drywall sheets, mud, and tape from room dimensions and openings. Free, no sign-up.Use toolPaint, Primer & Ceiling CoveragePaint calculator: enter room dimensions to get wall, ceiling, and primer gallons with doors and windows deducted for one or two coats. Free, no sign-up.Use toolFlooring & Baseboard Trim EstimatorFlooring calculator: enter room size to get plank boxes, underlayment rolls, and baseboard sticks per room, with layout waste included. Free, no sign-up.Use toolTile, Thinset & Grout CalculatorTile calculator: enter area and tile size to get tile boxes, thinset bags, and grout bags for floors, showers, backsplashes, waste included. Free, no sign-up.Use tool
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