Sheet seams, corners, rolls and cost

Drywall Tape Calculator

Estimate drywall tape length, full rolls, sheet count, purchased length and material cost from board coverage, seam assumptions and inside corners.

Imperial and metric Rounded purchase quantities Cost estimate

Default project preview

3 rolls

Approximate sheets

32

Base tape length

592 ft

Inside corners

80 ft

Purchased tape

750 ft

Calculator

Build the material order

Your order will appear here

Enter the project details and calculate a rounded material estimate.

Input and output guide

What each value means

The labels and units below are part of this calculator’s visible methodology. Replace every default with measurements or product data from the actual project.

Drywall surface area

Enter this project assumption in ft². The current imperial default is 1000 ft².

Area per drywall sheet

Enter this project assumption in ft². The current imperial default is 32 ft².

Average seam tape per sheet

Enter this project assumption in ft. The current imperial default is 16 ft.

Inside-corner length

Enter this project assumption in ft. The current imperial default is 80 ft. Minimum: 0.

Extra allowance

Enter this project assumption in %. The current imperial default is 10 %. Minimum: 0. Maximum: 50.

Tape roll length

Enter this project assumption in ft. The current imperial default is 250 ft.

Price per tape roll

Enter this project assumption in a unitless value. The current imperial default is 8. Minimum: 0.

How to read the outputs

Approximate sheets

from entered sheet area. Default preview: 32.

Base tape length

seams and corners. Default preview: 592 ft.

Inside corners

entered separately. Default preview: 80 ft.

Purchased tape

full rolls. Default preview: 750 ft.

Unused capacity

above estimate. Default preview: 98.8 ft.

Tape cost

tape rolls only. Default preview: $24.00.

Methodology

Transparent calculation

BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.

Base tape = estimated sheet count × seam tape per sheet + inside-corner length. The allowance is applied before rounding full rolls up.

Related tools

Continue planning the project

FAQ

Drywall Tape Calculator questions

Why estimate tape per drywall sheet?+

The board layout controls seam length, so an editable per-sheet rate provides a practical planning estimate.

Does this include outside corners?+

Outside corners usually use corner bead and should be estimated with the corner-bead calculator.

Does it calculate joint compound?+

No. Compound consumption depends on finish level, coats and workmanship.

Built and reviewed by Liron Elimeleh

Liron Elimeleh, software engineer and founder of BuildMeter, develops the calculation logic, unit conversions, validation and visible assumptions. ELStudios maintains the source and public correction history.

About the author