Wicking-Height Flood Cut and Demolition Takeoff
Turns a wall run and flood-cut height into the demolition takeoff a tech marks on the wall.
Example
You enter
- Affected wall run / perimeter (ft) 60
- Flood-cut height above floor (in) 24
- Board faces opened (1, or 2 for a wet partition) 1
- Has insulation 1
- Has baseboard 1
You get
- Drywall removed 120 ft^2
- Replacement 4x8 sheets 4 sheet(s)
- Baseboard to pull 60
Details, formula, and sources
Turns a measured wall run and the flood-cut line into the demolition takeoff a tech writes on the wall before the saw comes out: linear feet of score cut, square feet of board removed, replacement 4x8 sheet count, cavity insulation area, and baseboard run. The moisture meter sets the cut line a few inches above the highest reading, per IICRC S500 practice (by name); these are the resulting quantities.
cut_line_lf = perimeter_ft; drywall_sf = perimeter_ft x (cut_height_in/12) x faces; sheets = ceil(drywall_sf / 32); insulation_sf = perimeter_ft x (cut_height_in/12) when present; baseboard_lf = perimeter_ft when present.
ANSI/IICRC S500 flood-cut demolition practice by name; the geometry and the 32 ft^2 standard 4x8 sheet are not edition-bound.
The flood-cut takeoff is pure wall geometry; the standard 4x8 board is 32 ft^2. The moisture meter governs the cut line.
Estimate. AHJ and licensed professional govern.
Field names used by the API: wall_perimeter_ft, cut_height_in, removed_faces, has_insulation, has_baseboard, drywall_sf, drywall_sheets, baseboard_lf
- Cut line the cut height is a screen; cut a few inches above the highest moisture-meter reading, not at a round numberANSI/IICRC S500
- Sheet area standard 4x8 drywall = 32 ft^2 per sheetstandard-sizes.js convention
- Scope linear and area takeoff only; the moisture map and the inspector govern how much wall comes outANSI/IICRC S500