Does every cubic foot outside accepted cuts become scrap?

No. It can include trim, rejected foam, inventory awaiting disposition, or recoverable material. Classify the balance before assigning a disposal cost.

Can I compare different foam grades?

Only as volume yields. Equal volume losses can carry different material values and recovery options.

Why must accepted volume stay below block volume?

The calculator reconciles one block without material additions. A larger accepted volume indicates inconsistent lots, dimensions, or compression states.

Where does the target come from?

You enter the target from your approved operating or quoting basis. The calculator does not assume a standard foam yield.

Foam, Insulation & Cushioning Products calculator

Foam Block Yield Calculator

Check how much of a foam block became accepted usable cuts. Enter matched block volumes and your yield target.

What this calculator does

Measure accepted foam volume yield and the additional usable volume needed to meet your block yield target.

Formula used

Yield = accepted volume ÷ original block volume × 100
Target gap = target yield − actual yield
Outside accepted volume = original block volume − accepted volume
Target accepted volume = original block volume × target yield ÷ 100
Shortfall = max(0, target accepted volume − accepted volume)

Inputs explained

Accepted Usable Foam Volume: Accepted cut-volume total from the block disposition record.
Original Block Volume: Measured original block volume for the same lot.
Target Block Yield: Your accepted-volume yield target for this foam grade.

How to use the result

Best suited to block cutting closeout, accepted-volume target review.
Volume yield does not weight different grades by value. Unclassified or rejected foam may remain recoverable. Input ceilings are computational bounds, not operating limits.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.

Common questions

Does every cubic foot outside accepted cuts become scrap? No. It can include trim, rejected foam, inventory awaiting disposition, or recoverable material. Classify the balance before assigning a disposal cost.
Can I compare different foam grades? Only as volume yields. Equal volume losses can carry different material values and recovery options.
Why must accepted volume stay below block volume? The calculator reconciles one block without material additions. A larger accepted volume indicates inconsistent lots, dimensions, or compression states.
Where does the target come from? You enter the target from your approved operating or quoting basis. The calculator does not assume a standard foam yield.

Last reviewed 2026-10-01.