Room sizes

How big is a room that size?

Every size below has its square footage worked out and its layout drawn to scale — furniture, walkways and all — so the number arrives with something to stand next to.

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Closet sizes

3×3 — 9 ft²Closet shelving commonly runs 12 to 16 in deep; at 16 in, 3 ft of depth keeps 20 in of standing room in front of the…

Bath or utility room sizes

6×12 — 72 ft²A side-by-side laundry pair fits on the 6 ft wall — a typical 27-inch washer and a typical 27-inch dryer — with the 3…

Small bedroom or office sizes

8×10 — 80 ft²Centred with walk space on both sides, a twin bed (the mattress is a 38 by 75 inch standard) fits with 29 in beside e… 9×13 — 117 ft²Centred with walk space on both sides, a queen bed (the mattress is a 60 by 80 inch standard) fits with 24 in beside… 10×10 — 100 ft²Centred with walk space on both sides, a queen bed (the mattress is a 60 by 80 inch standard) fits with 30 in beside… 10×12 — 120 ft²Centred with walk space on both sides, a queen bed (the mattress is a 60 by 80 inch standard) fits with 30 in beside…

Bedroom sizes

11×14 — 154 ft²Centred with walk space on both sides, a king bed (the mattress is a 76 by 80 inch standard) fits with 28 in beside e… 12×12 — 144 ft²Centred with walk space on both sides, a king bed (the mattress is a 76 by 80 inch standard) fits with 34 in beside e… 12×14 — 168 ft²Centred with walk space on both sides, a king bed (the mattress is a 76 by 80 inch standard) fits with 34 in beside e… 12×16 — 192 ft²Centred with walk space on both sides, a king bed (the mattress is a 76 by 80 inch standard) fits with 34 in beside e…

Living room sizes

11×17 — 187 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 6 ft 8 in be… 12×18 — 216 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 7 ft 8 in be… 14×16 — 224 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 9 ft 8 in be… 14×20 — 280 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 9 ft 8 in be… 16×16 — 256 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 11 ft 8 in b… 16×20 — 320 ft²A typical 84-inch three-seat sofa on one long wall faces a typical 60-inch TV console on the other, with 11 ft 8 in b…

Garage sizes

12×24 — 288 ft²One car parks centred — a typical mid-size sedan (about 15 ft 7 in long) — with 36 in of walk-around kept clear on ea… 20×20 — 400 ft²Two cars park side by side — each is a typical mid-size sedan (about 15 ft 7 in long) — with 30 in beside each wall a… 24×24 — 576 ft²Two cars park side by side — each is a typical mid-size sedan (about 15 ft 7 in long) — with 54 in beside each wall a…

Shop or outbuilding sizes

30×40 — 1200 ft²Two cars park side by side — each is a typical mid-size sedan (about 15 ft 7 in long) — with 90 in beside each wall a… 30×50 — 1500 ft²Two cars park side by side — each is a typical mid-size sedan (about 15 ft 7 in long) — with 90 in beside each wall a…

Not on the list?

The square footage calculator takes any dimensions you can measure — including L-shapes, closets and the parts you’re not covering — and hands the total straight to the material calculators.

The rest of the toolbox

Measured this room? Take the number to whichever material you’re buying — every tool runs in your browser, same as this page.

Square footage calculatorLiveAdd rooms, subtract islands, get one total. Flooring & tile calculatorLiveBoxes needed, waste factor, cost per box. Paint calculatorLiveInterior, exterior with gables, and trim by the foot. Concrete calculatorLiveCubic yards and 60/80 lb bag counts. Roofing calculatorLiveSquares, with the pitch multiplier applied. Mulch & gravel calculatorLiveYards, tons, bags — and truck trips by payload. Sod calculatorLiveRolls and pallets for the area you measured. Room size indexLiveEvery size drawn to scale, with what fits.