How Many Square Feet Is a 12x12 Room?

A 12 × 12 ft room is 144 square feet, which is 16.00 square yards or 13.38 square meters. The perimeter is 48 ft. For flooring buy about 158 sq ft (8 boxes) to allow for waste.

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Example job shown. Change the numbers to match yours.

Area
144.00 ft²
Square yards
16.00 yd²
Square meters
13.38 m²
Acres
0.0033 acres
Perimeter
48.00 ft
  • For an irregular area, split it into rectangles, triangles and circles, calculate each, and add them up.

Before you buy: round up to whole packs, check the size printed on the label, and add a little spare. Your supplier has the final say.

12 × 12 ft room in other units

A master bedroom or a good-sized family room is about this size. The area is length times width: 12 × 12 = 144 sq ft. Measure to the walls at the longest point, and add closets and alcoves you will floor.

UnitThis room
Square feet144 sq ft
Square yards16.00 sq yd
Square meters13.38 sq m
Perimeter (around the walls)48 ft
Acres0.00331 acres

What to buy for 144 sq ft

MaterialAmount
Flooring (10% waste, 20 sq ft boxes)158 sq ft, 8 boxes
Carpet (10% extra)17.6 sq yd
12 × 12 in tiles (10% waste)159 tiles
Baseboard (perimeter, less doorways)about 48 ft

Flooring with different waste allowances

Straight layouts need about 5 to 7%, diagonal layouts 10%, and herringbone or patterns 15%.

WasteFlooring to buyBoxes of 20 sq ft
5% waste151 sq ft8
10% waste158 sq ft8
15% waste166 sq ft9

Use the square footage calculator for L-shaped rooms, circles and triangles, or the flooring calculator and flooring for a 12x12 room for a full flooring estimate.

Want to change anything else? The calculator above is the full Square Footage Calculator: edit any number and the results update instantly.

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Frequently asked questions

How many square feet is a 12x12 room?

144 square feet (12 ft × 12 ft). That is 16.00 square yards or 13.38 square meters.

How many square feet of flooring do I need for a 12x12 room?

The floor is 144 sq ft, so buy about 158 sq ft with 10% for cuts and waste. That is 8 boxes at 20 sq ft a box.

How much carpet is a 12x12 room?

16.00 square yards of floor, so about 17.6 sq yd with 10% extra for seams and fitting. Carpet is usually sold in 12 ft rolls, so ask the supplier how it will be cut.

Related sizes and guides

Related sizes

Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.