234 square feet (18 x 13 = 234)/
An 18x18 square is equivalent to 324 square feet. This is calculated by multiplying the length (18 feet) by the width (18 feet) to get the total square footage.
A simple rectangular room 20 feet by 18 feet has 360 square feet.
A 6 foot by 3 foot area would be 18 square feet.
There are 20.5/12 times 18 = 30.75 square feet
18 x 18 = 324 square feet
18 square meters is the same as 193.75 square feet.
7 1/2 inches = .625 feet so... 3X18.625=55.875square feet you will need extras for waste and doorways... It can add up fast...
There are: 8 times 18 = 144 square feet
18 square feet is about 1.7 (1.67225) square meters.
18 square feet = 1.67 square meters.
There are 144 18 square inch tiles in an area of 18 square feet.
2.25 square feet.
There are: 18*15.5 = 279 square feet
18 feet x 3 feet = 54 square feet / 9= 6 square yards x $25 =$150 or 18 feet / 3 feet = 6 yards x 1 yard= 6 square yards x $25= $150
There are 18 feet times 7 feet equals 126 square feet
1,080 square feet (18 x 60 = 1,080).