How many cans of spray paint for a chair?

Short answer

A wooden dining chair has about 11 sq ft of surface and needs 2.2 cans for two coats at 10 square feet per can: buy 3 cans.

How to work it out

  1. 16 in × 16 in × 2 faces = 3.56 sq ft
  2. 16 in × 12 in × 2 faces = 2.67 sq ft
  3. 18 in × 1.25 in × 16 faces = 2.5 sq ft
  4. 16 in × 1.25 in × 8 faces = 1.11 sq ft
  5. 14 in × 1 in × 12 faces = 1.17 sq ft
  6. Total 11 sq ft × 2 coats ÷ 10 sq ft per can = 2.2 → 3 cans

A chair looks small, but it has a lot of faces: both sides of the seat and back, four legs with four faces each, and the stretchers between them. Added up, a typical wooden dining chair is about 11 sq ft of paintable surface.

Adjust for your project

Parts to paint
5 rows
Faces = how many times that rectangle gets sprayed: a seat top and bottom is 2; four square legs are 16 faces
sq ft
Can labels give an “up to” figure (12–25 sq ft for many 12 oz cans). For real objects with edges, legs and overspray, 8–10 sq ft per can is a safer planning figure
Spray paint goes on in light coats; two or three is normal
Cans of paint3 cans
Surface to paint (one coat)
11 sq ft
Cans, before rounding up
2.2
  • Rounded and spindly parts (legs, rungs, wicker, wire) waste a lot of spray past their edges. On those, buy one can more than the count.
  • Spray in light passes 8–12 in from the surface, overlapping each pass by about half, and follow the can’s recoat window.

For this job · affiliate link
Spray paint and primer (12 oz)Paint-and-primer spray saves the separate primer coat on clean wood and scuffed, previously painted surfaces.
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Cans by number of coats

Cans by number of coats
CoatsCans, before rounding upCans of paint
11.12 cans
22.23 cans
33.34 cans

Where the 11 square feet come from

  • Seat: 16 × 16 in, top and bottom: 3.6 sq ft.
  • Back: 16 × 12 in, front and back: 2.7 sq ft.
  • Legs: four 18 in legs, 1¼ in square, four faces each: 2.5 sq ft.
  • Back posts and stretchers: about 2.3 sq ft more.

Two coats at 10 sq ft per can is 2.2 cans: three cans, with most of one left for touch-ups. At the 12 sq ft printed on some cans it is just under two, but legs and rungs waste a lot of spray past their edges, so plan on three. Metal patio chairs with tube legs waste even more; wicker and woven seats more still.

For a set, multiply: four chairs are about 8.8 cans (buy nine), six about 13. If you are priming bare wood or metal first, add one coat’s worth of primer, about one can per chair. The other common furniture job is how many cans of spray paint for a dresser; for a chair painted by brush instead, a quart of enamel does about eight chairs’ worth of single coats (see how much does a quart of paint cover).

What you’ll need

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Frequently asked questions

How many cans of spray paint for 4 chairs?

About 8.8 cans for two coats: buy 9 cans.

How many cans of spray paint for a chair with one coat?

About 1.1 cans: 2 cans.

How many cans for a chair if the can covers 20 sq ft?

About 1.1 cans for two coats: 2 cans.

Sources