The Room Surface Area calculator computes the surface area of the interior of a rectangular room including the walls and ceiling based on the length, width and height of the room.
INSTRUCTIONS: Choose units and enter the following:
Room Surface Area (A): The calculator will return the total surface area (A) of the interior room including the walls and ceiling in square feet. However, this can be automatically converted to other area units (e.g. square meters) via the pull-down menu.
Theis the sum of the area of the walls and the area of the ceiling. These areas can be determined by the dimensions of the room. The total area is the sum of:
This totals toin the following equation:
A = 2(L•H) + 2(W•H) + L•W
Note: The above does not include the area of the floor.
Pricing for drywall is an estimate. The pricing per sheet used in this estimator is as follows: