Insulation batts.
Measure each supplied bay's clear width and length rather than the outer frame area.
Read the right quantitative data
Batt dimensions, pieces per pack and any explicitly permitted orientation.
Check this ordering assumption
A total area allowance does not prove that complete batt pieces fit each bay.
Performance, compression allowance and fit specification come from the selected design.
A worked quantity method
This illustrative set of supplied inputs demonstrates Insulation Bay Batt Cut Order Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Chosen batt width | 0.6 m | 1.97 ft |
| Chosen batt length | 1.2 m | 3.94 ft |
| Batts per pack | 8 | 8 |
| Measured bay 1: Bay width | 0.5 m | 1.64 ft |
| Measured bay 1: Bay length | 2.4 m | 7.87 ft |
| Measured bay 1: Identical bays | 10 | 10 |
Batt packs to purchase: 3 packs
- Measured bay area
- 12 m²
- Batts before pack rounding
- 20 batts
- Cutting layout area before pack rounding
- 14.4 m²
- Unreused cutting area
- 2.4 m²
Each bay is tiled separately in the fixed batt orientation. Offcuts are not reused between bays. Dimensions do not establish fit or thermal performance.
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.
Measure each supplied bay's clear width and length rather than the outer frame area.
Batt dimensions, pieces per pack and any explicitly permitted orientation.
A total area allowance does not prove that complete batt pieces fit each bay.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Input for Insulation Bay Batt Cut Order Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Insulation Bay Batt Cut Order Calculator
Tile measured bays separately with a fixed batt format, show unreused cuts and round the combined batt count to packs.
Insulation Quantity Calculator
Pool the net areas of several surfaces for a product with supplied pack coverage and thickness.
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.