ContractorHandbook

How Many Square Feet Is an 8x12 Room?

Total area

96 sq ft

Eight feet by twelve feet.

length x widthextralength, ftwidtharea x how many, plus anything odd shaped, in feet, yards and meters
Every material calculator on the site starts here, which is why this one also gives square yards and square meters. Odd shapes get broken into rectangles and added on, because a rectangle is the only shape a tape measure is honest about.

How that number is worked out

These are the figures this page was built with and every line the calculator produces from them. Change anything above and all of it moves.

  • Length8 ft
  • Width12 ft
  • How many rooms or areas this size1
  • Extra area to add0 sq ft

Total area96 sq ft

One area96 sq ft
Times 1, plus extra96 sq ft
Square yards10.67
Square meters8.92
Perimeter of one area40 ft

What else matters here

Ninety six square feet. It is a common shed footprint, a narrow spare bedroom, and roughly the size of a single car parking space plus the door swing.

If it is being finished as a bedroom, the window is the item to settle first. An emergency escape and rescue opening needs a clear opening of 5.7 square feet in most upper floor situations, a minimum clear height of 24 inches, a minimum clear width of 20 inches, and a sill no more than 44 inches off the floor. That is a bigger window than most people picture, and it is the reason a finished basement room often cannot be called a bedroom without cutting a well.

What this calculator assumes

  • Length times width, times how many areas are that size. For an L shaped room, split it into two rectangles and run this twice.
  • Square yards are square feet divided by nine, which is how carpet is still quoted in much of the country.

Questions people ask

How many square feet is an 8x12 room?

96 square feet, which is 10.67 square yards and 8.92 square meters.

What size egress window does a bedroom need?

Generally a clear opening of 5.7 square feet, at least 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor. Ground floor openings are sometimes allowed at 5 square feet.

Is an 8x12 shed a good size?

It is one of the most common sizes sold, big enough for a mower, a workbench and shelving, and small enough to avoid a permit in many jurisdictions. Check the local threshold, often 100 or 120 square feet.

Different numbers?

The square footage calculator takes any dimensions you like and hands back the same list.

Other common sizes