Membrane seam tape.
Record each actual seam once and separately identify crossings or extra detail pieces.
Read the right quantitative data
Tape roll length and the supplied extension at each seam or junction.
Check this ordering assumption
Counting both adjoining sheet edges doubles a shared seam.
Use the specified seam network and selected compatible tape.
A worked quantity method
This illustrative set of supplied inputs demonstrates Membrane Seam and Junction Tape Order Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Selected tape roll length | 10 m | 32.81 ft |
| Specified extra length at each seam end | 0.1 m | 0.33 ft |
| Separate junction patches | 2 | 2 |
| Specified length per junction patch | 0.5 m | 1.64 ft |
| Your permitted joining plan | Continuous pieces required | Continuous pieces required |
| Seam run 1: Measured run length | 6 m | 19.69 ft |
| Seam run 1: Identical runs | 2 | 2 |
Seam tape rolls: 2 rolls
- Specified seam pieces
- 12.4 m
- Separate junction patch lengths
- 1 m
- Total tape length
- 13.4 m
Continuous-piece packing uses decreasing-length first fit. It is feasible for the stated pieces but is not guaranteed optimal. No cut kerf, damage or end trim is assumed; include these in your supplied piece lengths.
Open this example in the full calculatorYour measurement and product-data sheet
Record what you know and mark verified items ready. Notes save on this browser after you edit them. Download a copy before clearing browser data.
Record each actual seam once and separately identify crossings or extra detail pieces.
Tape roll length and the supplied extension at each seam or junction.
Counting both adjoining sheet edges doubles a shared seam.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis. Available choices: Continuous pieces required; Joining and length pooling permitted
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Input for Membrane Seam and Junction Tape Order Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Membrane Seam and Junction Tape Order Calculator
Order rolls from measured seam runs, specified end allowances and separate junction patches, with explicit joining rules.
Masking Tape Run Calculator
Count tape rolls from measured edges, repeated masking passes and separate edge groups.
Turn the estimate into an order
- Confirm that all quantities use the same measured basis and the selected product's current data.
- Keep different products, finishes and handed variants in separate purchase lines.
- Review exact demand and whole-pack purchase quantities before entering your quoted prices.
- Record compatible stock already on hand, then save the remaining order in your browser project.
Measurement and purchase guides
Other materials in this family
Reviewed 6 October 2026. Geometry and purchase arithmetic use your measurements and selected specifications. Calculation scope.