Drywall Corner Bead Calculator
Estimate drywall corner-bead length, full stock pieces, fastener quantity, purchased coverage and material cost.
Default project preview
13 pieces
Base corner length
116 ft
Purchased length
130 ft
Estimated fasteners
192
Vertical corners
12
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.
Full-height outside corners
Enter this project assumption in a unitless value. The current imperial default is 12. Minimum: 0.
Corner height
Enter this project assumption in ft. The current imperial default is 8 ft.
Additional horizontal edges
Enter this project assumption in ft. The current imperial default is 20 ft. Minimum: 0.
Cut allowance
Enter this project assumption in %. The current imperial default is 10 %. Minimum: 0. Maximum: 50.
Corner-bead stock length
Enter this project assumption in ft. The current imperial default is 10 ft.
Fastener spacing
Enter this project assumption in in. The current imperial default is 8 in.
Price per stock piece
Enter this project assumption in a unitless value. The current imperial default is 4.5. Minimum: 0.
How to read the outputs
Base corner length
before allowance. Default preview: 116 ft.
Purchased length
full stock pieces. Default preview: 130 ft.
Estimated fasteners
entered spacing. Default preview: 192.
Vertical corners
full-height corners. Default preview: 12.
Offcut allowance
purchased minus base length. Default preview: 14 ft.
Material cost
corner bead only. Default preview: $58.50.
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 length = full-height corners × height + horizontal edges. Order length applies the cut allowance. Stock pieces and fasteners are rounded up.
Reviewed project guidance
How to use this estimate in a real project
Last reviewed: August 19, 2026
Convert full-height outside corners and extra horizontal edges into corner-bead stock pieces, fasteners and material cost.
Calculation steps
- 1Count only outside corners or edges receiving bead.
- 2Multiply full-height corners by actual finished height and add horizontal bead runs.
- 3Apply a cut allowance for damaged ends and short returns.
- 4Divide by stock length and round up; estimate fasteners from bead length and chosen spacing.
Worked numerical example
Twelve 8 ft outside corners plus 20 ft of horizontal edge require 116 ft of bead before allowance. A 10% cut allowance gives 127.6 ft; with 10 ft stock, the order rounds to 13 pieces.
Purchasing and rounding
Match bead type to the finishing system: paper-faced, vinyl, metal and specialty reveal profiles use different fasteners, compounds and stock lengths.
Interpret the result
The whole-piece count is the purchase quantity; the base linear footage is the installed edge length. Offcuts can reduce waste only when their lengths suit remaining corners.
Page-specific assumptions
- All full-height corners use the entered height.
- Horizontal edge length is measured separately.
- Fastener spacing applies to the selected bead system.
Common mistakes
- Counting inside corners that use tape instead of bead.
- Using wall perimeter instead of outside-corner length.
- Assuming every offcut is reusable on another corner.
Primary and technical references
BuildMeter provides planning estimates, not engineering, architectural, electrical, mechanical, plumbing, permit or code approval. Review the methodology and verify final decisions with product documentation and qualified professionals.
FAQ
Drywall Corner Bead Calculator questions
Are inside corners included?+
No. Inside corners are normally taped rather than covered with standard outside corner bead.
Should door and window returns be counted?+
Count every exposed outside edge that receives corner bead.
Can adhesive bead use the fastener estimate?+
No. Adhesive or spray-applied systems have different consumption guidance.