Inputs
Shareable URL
Walls in feet, panels in inches.
Wall segments H × W × Qty
| Height (ft) | Width (ft) | Qty | Area |
|---|
Openings to deduct H × W × Qty
| Height (ft) | Width (ft) | Qty | Area |
|---|
Example data
| Walls (H×W×Qty) | Openings (H×W×Qty) | Panels | Boxes | Notes |
|---|---|---|---|---|
| 8×14×2; 3×5×1 | 3×3×2 | ~ 228 | ~ 29 | Waste 10%, panel 24×6 in, joints 0.5 in |
Results
Total wall area
0.00 ft²
0.000 m²
Openings deducted
0.00 ft²
0.000 m²
Corner deduction
0.00 ft²
0.000 m²
Net area (after deductions)
0.00 ft²
0.000 m²
Panel coverage
0.00 ft² / panel
0.000 m² / panel
With waste
0.00 ft²
0.000 m²
Panels required
0
Boxes needed
0
Extra panels (from boxing)
0
Estimated total weight
0 lb
0.0 kg
Tip: adjust waste for cuts, breakage, and patterning; many jobs use 7–12%.
Formula used
Let Awall be total wall area, Aopen openings area, Acorner corner deduction, w waste fraction, Apanel panel coverage.
- Wall area:
Awall = Σ (height × width × qty). - Openings area:
Aopen = Σ (height × width × qty). - Corner deduction:
Acorner = Lcorner × Hdeduct(optional). - Net area:
Anet = max(0, Awall − Aopen − Acorner). - Gross with waste:
Agross = Anet × (1 + w). - Panel coverage:
Apanel = (L + j) × (H + j)if including joints, elseL × H. - Panels required:
N = ⌈ Agross / Apanel ⌉. - Boxes:
B = ⌈ N / pbox ⌉, extras= B × pbox − N. - Weight:
W = N × mpanel.
How to use
- Select your preferred units.
- Enter panel size, joint width, waste, packaging, and weight.
- Add wall segments; add openings to deduct windows and doors.
- Optionally enter corner length and deduction mode.
- Review results, then export CSV or PDF.
- Copy the shareable link to revisit the same inputs.
FAQs
When “include joints” is enabled, coverage adds one joint width to both directions. This approximates grout spacing patterns; adjust joint width to match your layout.
Typical projects use 7–12% for cuts and breakage. Increase waste for complex patterns, heavy cornering, or highly irregular panels.
This calculator estimates flat panel counts. Use the corner deduction to reduce flat area that corners will cover with dedicated L‑pieces sourced separately.
Yes. Run separate calculations per size and sum results, or average coverage based on the planned ratio of sizes.
Inputs switch units; calculations normalize internally. Output shows both square feet and square meters, and weight in pounds and kilograms.
The link above encodes all inputs. Copy it and revisit later, or send to teammates for exactly reproducible results.