Insulation packs

MEASURE FIRST

How to prepare your inputs

Measure the area to be insulated and check actual pack coverage, batt width and framing spacing.

How this calculation works

Required coverage = net area × layers × (1 + allowance). Units = round up [required coverage ÷ coverage per unit].

Assumptions & exclusions

Area-based buying estimate, not a cutting plan. Take openings out of net area before entry. Check product dimensions, layout, fire/acoustic ratings and fixing requirements separately. Insulation R-value and installation clearances are not selected by this tool.

Your next step

Confirm specified R-value, moisture management and clearances from electrical equipment and heat sources before installation.

Further reading

• Knauf insulation planning

These resources provide background information. Confirm current product specifications and project requirements with your supplier or trade professional.

What if my shape or product is different?

Use dimensions and product data that match the stated method. For complex work, calculate separate sections or obtain a project-specific take-off. Do not apply simple geometry to structural or compliance decisions.

Why are quantities rounded up?

Whole bags, packs, sheets or cartridges round up to purchasable units. Decimal area or volume results are planning figures; confirm order increments with the supplier.

Are my entries saved?

No. Entries remain in the current browser page and clear on reload. Printing can save your results and inputs as a PDF on your device.