Foam, Insulation & Cushioning Products worked example

Foam Block Yield at 63% target block yield: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop target block yield to 63%, then walk the calculation through step by step. Calculate usable foam block or bun yield by comparing accepted cut volume with the poured or purchased block volume.

The inputs for this scenario

  • Accepted usable foam volume: 86 ft³ (held at the documented default)
  • Poured or purchased block volume: 100 ft³ (held at the documented default)
  • Target block yield: 63 % (the input this scenario stresses; the baseline uses 88)

Working through the calculation

  • The calculation starts from the formula this tool documents: Foam Block Yield rate = accepted usable foam volume ÷ poured or purchased block volume × 100.
  • Foam Block Yield rate works out to 86 % at these inputs, and this is the headline figure for the scenario.
  • Foam Block Yield gap to target works out to -23 points at these inputs.
  • Accepted usable foam volume works out to 86 ft³ at these inputs.
  • Poured or purchased block volume works out to 100 ft³ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target block yield sits at 88% and the headline result is 86 %, this scenario lands almost exactly on the baseline at 86 %.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to target block yield, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It is a volume yield only — it does not weight by foam grade or value, so trimming low-value skin counts the same as losing premium core.

Results at a glance

  • Foam Block Yield rate: 86 % (headline result)
  • Foam Block Yield gap to target: -23 points
  • Accepted usable foam volume: 86 ft³
  • Poured or purchased block volume: 100 ft³

Run it with your numbers

  • To rerun this with your own numbers, open the live Foam Block Yield calculator, set target block yield to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.