Area Of Wall Of A Room Formula

You will need this measurement when estimating the amount of tile mortar grout and sealer that you will use for your project.

Area of wall of a room formula.

If the perimeter is 40 feet and the height is 10 feet multiply 40 times 10 feet to get a wall area of 400 square feet. For the rectangle cdhg the lengths of two adjacent sides are l and h. The formula to find the area of the walls of a rectangular room is a 2h l b h is wall height l is room length and b is room breadth. Its area lh for the rectangle daeh the lengths of two adjacent sides are b and h.

Because most walls are square or rectangular you can determine their surface area by multiplying the width and height measurements and then subtracting any door or window space. Length x width area. Hence the total area of the four walls lh bh lh bh 2lh 2bh 2h l b. So if your room measures 11 feet wide x 15 feet long your total area will be 165 square feet.

The area of doors and windows are ignored. Next use the same formula to record the individual area of windows and doors. Sketch the surface area to be measured and record the measurements and results as you go. Once you have all of these measurements down subtract the area of the windows and doors from the total area of the wall.

Multiply the perimeter of the room by the ceiling height to get the wall area.