to calculate square feet, you find the dimensions of a room and multiply them
p.s. the dimensions have to be in feet
p.s.s. the dimensions are the length and width of the room
p.s.s.s. the length is sideways, and the width is up and down.
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40 x 40 = 1600 sq ft
To calculate the square footage of a room, you multiply the length by the width. In this case, a 10 ft by 15 ft room would be 150 square feet. This is because 10 ft x 15 ft = 150 sq ft.
Floor . . . . . 42 sq ftCeiling . . . . 42 sq ftWalls . . . need to know the height of the room in order to calculate the wallsIf I've understand the question correctly?The square footage floor area of a room 6ft x 7ft is: 6 x 7 = 42 ft2 (either sq ft or ft2 can be used for square feet)
Area = 18 ft * 14 ft = 252 sq ft = 252/9 sq yards = 28 sq yards.
250 sq ft room is about the size of a typical master bedroom