Square feet = Length in Feet x Width in Feet For example: 10' x 8' = 80 sq. ft But say the room isn't square... for example, you want to include the size of the closet. Break the room up into squares... 10' x 8' = 80 sq. ft (for just the room) 5' x 3' = 15 sq. ft. (for just the closet) So the sq. ft. for the complete room (including the closet) is 95 sq. ft. (80+15).
8 x 8
Multiply width times length.
Measure the area on the plan and multiply by the square of the scale.
The square footage of the room is determined by the floor dimensions. So if you have a 12 x 20 room the square footage is 240 square feet.
Model each floor of the house with one or more rectangles, compute the area of each of these rectangles, and sum them to the total square footage. If the shape of you house if really complicated you may have to throw a triangle in there, but most houses can be approximated well enough using rectangles.
6 sheets. To figure this out I calculated the square footage of the room (16x12=192) and divided it by the square footage of each sheet of plywood (4x8=32). Answer: 192/32 = 6 sheets.
If the square footage refers to floor area, yes.
1200
Square footage of a building usually refers to the total square footage of floor area.
270 square feet
40 feet
width times length
When you say "square footage", that usually means the area of the floor, and yes, you get that by multiplying (length of the room) x (width of the room). That tells you how much carpet you need for the floor. The walls and the ceiling also have their own "square footage". You have to know that to do things like paint and wallpaper. The ceiling has the same area as the floor. But for the walls, you have to do another whole different calculation. The easy formula for square footage of the walls is circumference (the distance around the room at the floor level) X the height of the wall (at the tallest point if the walls are uneven or have a peak). If the walls have a large number of windows, doors or other areas not to be painted, you may want to figure the rough square footage of these (estimate low, better to have a bit too much paint than a bit too little) and subtract that from your total. If you are estimating square footage for paint remember you may want to do two coats. If you are estimating for wallpaper, be sure to allow for the "pattern repeat".
The square footage of a 25,000 gallon pool depends on the shape of the pool. To determine the square footage multiply the floor width with the floor length. Multiply the length by the height of the walls for each wall. Add all these numbers together to get the square footage.
72 square feet
Multiply width times length.
Measure the area on the plan and multiply by the square of the scale.
The square footage of the room is determined by the floor dimensions. So if you have a 12 x 20 room the square footage is 240 square feet.