Wall Boards for Room

The Wall Boards for Room calculator computes the number of (4x8) wallboards needed to cover the surface wall area of a rectangular structure (e.g. interior room or exterior walls on a shed)  based on the length, width and height of the structure.

INSTRUCTIONS: Choose units and enter the following:

• (L) Length 
• (W) Width 
• (H) Height 

Sheets (s): The calculator returns the number of wallboard sheets needed to cover the walls and ceiling of the room, and the total surface are area in square feet.  

The Math / Science

The surface area of the interior of a room or exterior walls of a frame is determined by the length and width of the room and the height of the framing.  From this, it is easy to compute the surface area.  The most simple computation for the number of 4'x8' wall boards is to divide the answer by 32 square feet and round up.

Related Calculators

• Surface Area of the Room including the walls and ceiling
• Drywall to Cover a Room including the walls and ceilings
• Drywall cost of Material (wall board) for a room including the walls and ceiling
• Cost to Finish Drywall.  This includes taping, mudding and sanding up to preparation to paint.
• Drywall Sheets for a Wall or Area
• Drywall Cost of Material (wall boards) for a Wall 
• Compute the number of gallons to paint or primer a room
• Compute the cost to paint or prime a room
• Compute the volume of a room
• Compute the surface area of the interior walls of a room
• Compute the floor area of a room

Drywall Pricing

Pricing for drywall is an estimate.  The pricing per sheet used in this estimator is as follows:

• Drywall Pricing Survey Date: 3/28/23
• Drywall Pricing Survey Store: Menards
• The pricing for a 1/2 inch 4x8 sheet of drywall is $10.67 USD
• The pricing for a 5/8 inch 4x8 sheet of drywall is $17.78 USD
• The pricing for a 1/2 inch 4x12 sheet of drywall is $17.78 USD
• The pricing for a 5/8 inch 4x12 sheet of drywall is $21.16 USD