Inputs
ft
ft
Irregular room? Approximate with rectangles and sum as “known area”.
sq ft
Enter pieces: Qty, Width, Height. Units follow selection.
| Qty | Width | Height | |
|---|---|---|---|
Kerf applies between cuts during packing simulation.
in
$
Sheet Reference
Imperial 4x8 panel is 48 in × 96 in = 32 sq ft.
Metric panel is 1220 mm × 2440 mm ≈ 2.98 m².
Results
Sheets Needed
—
Rounded up to whole sheets.
Total Area
—
sq ft including waste
Estimated Cost
$0.00
Based on sheet price.
Details
| Item | Value |
|---|
Example Data Table
| Project | Room | Area | Sheets (approx.) |
|---|---|---|---|
| Garage Sheathing | 20×22 ft | 440 sq ft | 440 / 32 × 1.1 ≈ 16 |
| Closet Shelves | Cut list | — | Heuristic packs into 2 sheets |
| Shed Walls | 8×10 ft | 180 sq ft | 180 / 32 × 1.1 ≈ 7 |
Formula Used
- sheet_area = 32 sq ft (48 in × 96 in) or ≈ 2.98 m².
- effective_area = project_area × (1 + waste/100).
- sheets = ceil(effective_area / sheet_area).
- cost = sheets × price_per_sheet.
- Cut-list mode uses a shelf-based guillotine approximation with kerf gaps.
How to Use This Calculator
- Select a unit system and mode: dimensions, known area, or cut list.
- Enter room size or total area, then set waste and sheet price.
- For cut lists, add rows for each piece and set kerf width.
- Click Calculate to see sheets, area, utilization, and cost.
- Export a shareable report using the CSV or PDF buttons.
Coverage Quick Reference (by Sheets)
| Sheets | Net Coverage | Base Area Capacity (at current waste) |
|---|
Capacity shows how much project area those sheets cover after waste.
Thickness & Weight Guide (Approximate)
| Thickness | Approx. Weight / Sheet | Common Uses |
|---|
Weights vary by species, glue, plies, and moisture content.
FAQs
Standard panels are 48×96 inches (about 1220×2440 mm), covering 32 square feet (≈2.98 m²).
For simple layouts, 5–10% is common. Complex cuts, defects, or matching patterns may require 10–20%.
Kerf is the material removed by the saw blade. We subtract kerf between adjacent cuts so pieces truly fit.
This tool focuses on 4×8 panels. For other sizes, convert area equivalently or adjust cut-list targets as needed.
No—optimal packing is complex. Our shelf heuristic is practical and fast, giving useful estimates in most cases.