Results
Enter project details and press Calculate to see quantities, joints, adhesives, supports, costs, and schedule-based weight/pressure.
Example Data Table
| Segment | Length | Qty | Notes |
|---|---|---|---|
| Main corridor | 12 m | 2 | Supply trunk |
| Fixture branches | 6 m | 4 | Bathrooms, pantry, laundry |
| Risers | 3 m | 3 | To upper floor |
Use this as a guide. Replace with your actual segments and counts.
Formula Used
Total required length = Base run length + Waste allowance + Expansion allowance + Cut loss.
- Base run length = Σ( segment length × quantity ).
- Waste allowance = Base × (waste % ÷ 100).
- Expansion allowance = Base × (expansion % ÷ 100).
- Cut loss = Joints × cut loss per joint.
- Pipe sticks = Ceiling( Total required length ÷ stick length ).
- Supports/Hangers ≈ Floor( Total required length ÷ support spacing ) + 1.
- Estimated glued joints = 90s + 45s + 3×Tees + 4×Crosses + Couplings + Unions + 2×Valves + Caps + Adapters + Extra joints.
- Cement/Primer cans = Ceiling( Joints ÷ joints-per-can ).
- Total weight = Weight-per-length × Total required length.
Numbers are planning estimates. Always confirm with project specifications and local codes.
How to Use This Calculator
- Select units, pipe standard, and nominal size.
- Enter pipe stick length and support spacing.
- Add run segments with lengths and quantities; include risers and branches.
- Enter counts for fittings, valves, and any extra joints.
- Enable Auto coverage to set joints-per-can from selected size and can volume.
- Optionally enter unit prices for a material cost estimate.
- Click Calculate to summarize sticks, joints, hangers, cans, weight, and pressure.
- Export the takeoff via Download CSV or Download PDF.
Schedule Weight/Pressure Tables (editable)
These sample values are provided for planning only. Verify with datasheets. You can edit the library JSON and it will be saved in your browser.
{
"CTS SDR 11": {
"1\/2\"": {
"weight_per_m": 0.2,
"weight_per_ft": 0.13,
"pressure_psi": 400
},
"3\/4\"": {
"weight_per_m": 0.3,
"weight_per_ft": 0.2,
"pressure_psi": 400
},
"1\"": {
"weight_per_m": 0.42,
"weight_per_ft": 0.28,
"pressure_psi": 400
},
"1-1\/4\"": {
"weight_per_m": 0.58,
"weight_per_ft": 0.39,
"pressure_psi": 320
},
"1-1\/2\"": {
"weight_per_m": 0.75,
"weight_per_ft": 0.5,
"pressure_psi": 320
},
"2\"": {
"weight_per_m": 1.05,
"weight_per_ft": 0.71,
"pressure_psi": 320
}
},
"Schedule 40": {
"1\/2\"": {
"weight_per_m": 0.26,
"weight_per_ft": 0.17,
"pressure_psi": 450
},
"3\/4\"": {
"weight_per_m": 0.39,
"weight_per_ft": 0.26,
"pressure_psi": 420
},
"1\"": {
"weight_per_m": 0.55,
"weight_per_ft": 0.37,
"pressure_psi": 330
},
"1-1\/4\"": {
"weight_per_m": 0.78,
"weight_per_ft": 0.52,
"pressure_psi": 280
},
"1-1\/2\"": {
"weight_per_m": 1,
"weight_per_ft": 0.67,
"pressure_psi": 250
},
"2\"": {
"weight_per_m": 1.38,
"weight_per_ft": 0.93,
"pressure_psi": 210
}
},
"Schedule 80": {
"1\/2\"": {
"weight_per_m": 0.34,
"weight_per_ft": 0.23,
"pressure_psi": 630
},
"3\/4\"": {
"weight_per_m": 0.52,
"weight_per_ft": 0.35,
"pressure_psi": 560
},
"1\"": {
"weight_per_m": 0.74,
"weight_per_ft": 0.5,
"pressure_psi": 470
},
"1-1\/4\"": {
"weight_per_m": 1.02,
"weight_per_ft": 0.69,
"pressure_psi": 420
},
"1-1\/2\"": {
"weight_per_m": 1.3,
"weight_per_ft": 0.87,
"pressure_psi": 390
},
"2\"": {
"weight_per_m": 1.83,
"weight_per_ft": 1.23,
"pressure_psi": 330
}
}
}
FAQs
Size affects adhesive coverage assumptions and weight/pressure lookups. Length-based takeoff stays geometric, independent of wall schedule.
It sets joints-per-can using the chosen manufacturer profile, can volume, and nominal size. You can still override the numbers anytime.
They are sample placeholders. Replace them with values from your supplier's datasheets and save the library to your browser.
Yes. Use the library editor to paste JSON per project. The tool keeps it in localStorage until you reset or change it.
Yes. The coverage table includes both cement and primer. When enabled, both fields update to the derived values.