Corner Bead / Drywall Trim Takeoff
Corner bead and drywall trim takeoff: one full-height bead per outside corner.
Example
You enter
- Outside corners (count) 9
- Corner height (ft) 8
- Cased openings wrapped in bead (count) 2
- Opening width (ft) 3
- Opening height (ft) 7
- Bead stock length (ft) 10
- Waste (%) 10
You get
- Corner bead LF 72 ft
- Opening-wrap LF 34 ft
- Total LF (with waste) 116.6 ft
- Pieces 15
- Pieces by (LF) 12
- Pieces by runs 15
Details, formula, and sources
Two legs plus a head per wrapped cased opening, waste, and a stick count that takes the LARGER of the LF math and the one-stick-per-run floor - bead is not spliced mid-corner because a splice telegraphs through the mud. 9 corners at 8 ft on 10-ft stock is 9 sticks, not 8. Mud, tape, and wood casing are taken off separately.
corner_lf = corners x height; wrap_lf = openings x (2 x height + width); total = (corner_lf + wrap_lf) x (1 + waste); sticks = max(ceil(total/stock), one-stick-per-run count).
Straight takeoff arithmetic with one trade rule encoded - bead is not spliced mid-run - so the stick count takes the larger of the LF division and the per-run floor. No standard claimed.
Counting arithmetic; the no-splice practice is universal finishing guidance published freely by bead manufacturers.
Estimate. AHJ and licensed professional govern.
Field names used by the API: outside_corners, corner_height_ft, wrapped_openings, opening_width_ft, opening_height_ft, stock_length_ft, waste_pct, corner_lf, wrap_lf, total_lf, pieces, pieces_by_lf, pieces_by_runs
- No mid-run splices each corner leg and each wrap leg/head is at least one full stickuniversal finishing practice (a splice telegraphs through the mud)
- Wrap geometry a cased opening wrapped in bead takes two legs plus a headtakeoff arithmetic