Opening flashing stock.
List every specified sill, head and jamb strip as a complete cut piece.
Read the right quantitative data
Usable stock length or roll width and all supplied end extensions.
Check this ordering assumption
An opening's simple perimeter can omit intended returns and extensions.
Flashing geometry and system details come from the supplied plan.
A worked quantity method
This illustrative set of supplied inputs demonstrates Window Opening Flashing Strip Cut Order Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Selected flashing roll length | 10 m | 32.81 ft |
| Specified sill strip extra at each end | 0.2 m | 0.66 ft |
| Specified extra per jamb strip | 0.2 m | 0.66 ft |
| Specified head extension at each end | 0.2 m | 0.66 ft |
| Opening 1: Measured opening width | 1 m | 3.28 ft |
| Opening 1: Measured opening height | 2 m | 6.56 ft |
| Opening 1: Identical openings | 2 | 2 |
Flashing tape rolls for specified opening strips: 2 rolls
- Specified strip count
- 8
- Total strip length
- 14.4 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. Strip order, corner details, tape width and compatibility must come from your existing specification.
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.
List every specified sill, head and jamb strip as a complete cut piece.
Usable stock length or roll width and all supplied end extensions.
An opening's simple perimeter can omit intended returns and extensions.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Window Opening Flashing Strip Cut Order Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Window Opening Flashing Strip Cut Order Calculator
Order continuous sill, jamb and head tape strips from supplied opening measurements and detail extensions.
Stock Cut List Calculator
Group required straight cuts into available equal-length stock, allowing for kerf and end trimming.
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
- How to measure and order: window and opening materials
- Fixed film orientation versus permitted rotation: quantity checks
- Apply banding cut allowance to every selected edge
- A reproducible two-stock cut plan can still cost more than another plan
- Keep first-emitter offset in a specified dripline takeoff
- Purchased stock length is not installed finished length
Other materials in this family
Reviewed 6 October 2026. Geometry and purchase arithmetic use your measurements and selected specifications. Calculation scope.