Rectangular duct jacket stock.
Unfold the supplied jacket perimeter into full rectangular blanks including its selected seam.
Read the right quantitative data
Sheet stock dimensions, supplied seam allowance and cutting gap.
Check this ordering assumption
A net metal area can fit into fewer sheets on paper than the actual complete blanks allow.
Gauge, airflow, fire performance and assembly detail are outside the stock count.
A worked quantity method
This illustrative set of supplied inputs demonstrates Rectangular Duct Jacket Sheet Blank Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Usable stock width | 2 m | 6.56 ft |
| Usable stock length | 3 m | 9.84 ft |
| Your reserved cutting gap | 0 m | 0 ft |
| Permitted blank orientation | Fixed orientation | Fixed orientation |
| Supplied seam extra | 0 m | 0 ft |
| Supplied extra at each end | 0 m | 0 ft |
| Supplied rectangular jacket 1: Supplied jacket width | 0.3 m | 0.98 ft |
| Supplied rectangular jacket 1: Supplied jacket height | 0.2 m | 0.66 ft |
| Supplied rectangular jacket 1: Measured jacket length | 1 m | 3.28 ft |
| Supplied rectangular jacket 1: Identical jackets | 3 | 3 |
Sheets for this rectangular allocation: 1 sheets
- Cut panels
- 3
- Net panel area
- 3 m²
- Area outside panels including cutting gaps
- 3 m²
Longest-side-first placement with disjoint rectangular remainder regions and reserved cutting gaps. Feasible allocation, not a guaranteed minimum or machine cutting procedure.
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.
Unfold the supplied jacket perimeter into full rectangular blanks including its selected seam.
Sheet stock dimensions, supplied seam allowance and cutting gap.
A net metal area can fit into fewer sheets on paper than the actual complete blanks allow.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis. Available choices: Fixed orientation; Rotation permitted
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Input for Rectangular Duct Jacket Sheet Blank Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Rectangular Duct Jacket Sheet Blank Calculator
Develop a supplied rectangular jacket perimeter plus seam extra into complete blanks and allocate those blanks to stock sheets.
Mixed Rectangle Sheet Layout Calculator
Build a feasible rectangular cut allocation for different rectangular panels, respecting your rotation choice and cutting gap.
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.