How much Sherwin-Williams paint for a 12×12?
Plan 2–3 gallons for walls, two coats. SuperPaint and Duration interiors often list about 350–400 sq ft/gallon. Colour changes and texture use the low end — buy 3 gallons rather than stretching 2.
Sherwin-Williams Paint Calculator
Need a Sherwin-Williams paint calculator? Measure the room, then copy sq ft per gallon from your Duration Home, SuperPaint, Cashmere, or Emerald can. Company stores in Canada print coverage on the label — that number beats any website default.
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Sherwin-Williams 12×12 worked example
384 sq ft walls × 2 coats = 768 sq ft to cover. At 350 sq ft/gallon (a cautious SuperPaint / Duration DIY rate) that is 2.2 gallons — the store sells whole gallons, so buy 3. At a 400 sq ft/gallon label on smooth primed drywall, 1.9 gallons → buy 2 if you are confident in the surface.
Pro accounts sometimes spray; spray overspray uses more product than this roller-based estimate. Add waste in the calculator if you are spraying.
Company stores vs Cloverdale
Sherwin-Williams owns Cloverdale Paint. Cans labelled Cloverdale are a different product line sold mainly in Western Canada. Use Cloverdale paint calculator when that is what is in your tray.
For other Canadian brands see the coverage chart.
Independent calculator — not a brand site
Brand names appear only so you can match typical Canadian label coverage. Paint Calculator is an independent tool — not affiliated with, endorsed by, or sponsored by Behr, Benjamin Moore, Sherwin-Williams, Cloverdale Paint, Dulux, Sico, Beauti-Tone, CIL, Valspar, PPG, The Home Depot, Lowe’s, Canadian Tire, Home Hardware, or their parent companies. Always use the Coverage figure printed on your can.
Related guides
Frequently asked questions
Does Sherwin-Williams have a room gallon calculator?
Sherwin-Williams publishes coverage on each product, not a DIY room-dimension tool like this. Enter your wall measurements here and the label number from your can. This site is not affiliated with Sherwin-Williams.
Duration vs SuperPaint vs Cashmere — same coverage?
Interior lines cluster around 350–400 sq ft/gallon on ideal walls, but each can is different. Emerald and Harmony have their own labels. Never mix products in one calculation — run primer and topcoat separately.
Where do I buy Sherwin-Williams in Canada?
Sherwin-Williams company stores nationwide and some independent dealers. Cloverdale Paint stores in Western Canada are part of the same company family but sell Cloverdale-branded products — use the [Cloverdale calculator](/cloverdale-paint-calculator) for those cans.
Related calculators
Brand names appear only so you can match typical Canadian label coverage. Paint Calculator is an independent tool — not affiliated with, endorsed by, or sponsored by Behr, Benjamin Moore, Sherwin-Williams, Cloverdale Paint, Dulux, Sico, Beauti-Tone, CIL, Valspar, PPG, The Home Depot, Lowe’s, Canadian Tire, Home Hardware, or their parent companies. Always use the Coverage figure printed on your can. Full disclaimer.
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