Steps Involved in Building a HouseSpike's Calculators

Drywall Calculator for a Room

Estimate the number of drywall materials needed for boarding and taping a room. This calculator will provide you with a rough estimate of the materials needed with a board count based on board size and the square footage of the area.

To get a good estimate for boards needed and thereby reducing the number of joints, a wall should be measured for the best fitting size board. If you have a 10' long wall with a height of 8' you should use 2 4'x10' boards. If that same wall has a 9' height then look at using 2 boards with a width of 4'6" (54") and thus eliminating one additional joint lengthwise.

The square footage of openings allows you to subtract areas that do not need boarding. Only subtract large openings and ignore the smaller ones.

Wall and ceiling results are kept separate as quite often the ceiling will require a different board thickness.

The amount of tape needed is calculated from the number of joints that need taping.

The amount of screws needed is based on an average of 1 screw per square foot of wall area and 1.25 per square foot of ceiling area.

Ready-mixed joint compounds are the standard compounds and come ready-made in three types. One specially designed for covering the tape and one for topping or you can use an all-purpose one. The calculation for these compounds is based on 64 lbs per 450 square feet of board.

The lightweight all-purpose joint compound does it all from start to finish and is easier to work with. The calculation is based on 5 gallons for 450 square feet of board.

Note: There is no allowance for waste calculated in the results

Drywall One Room

Room Length ft in
Room Width ft in
Wall Height ft in
Board Sizelength: ft
width: ft
Wall Opening's Square Footage ft²

Results:

Ceiling Square Footage ft²
Walls Square Footage ft²
# of Boards Needed for Ceiling #
# of Boards Needed for Walls #
Lenght of Tape Needed ft
Number of Screws #
Ready-Mixed Joint Compounds lbs
Lightweight All Purpose Joint Compound gal

The Calculation

  1. the length of the room
  2. the width of the room
  3. height of the wall
  4. the size of the board you are using. Preset @ 8' x 4' but can be changed.
  5. combined square footage of wall and ceiling openings

Results

  1. square footage of the ceiling
  2. square footage of all the walls
  3. number of boards needed for the ceiling
  4. number of boards needed for the walls
  5. length of tape needed for the joints
  6. amount of screws needed
  7. ready mixed joint compounds
  8. lightweight all purpose joint compound





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