Mattress, Bedding & Foam Product Assembly worked example

Throughput Per Shift at 60% line efficiency: a worked example in mattress, bedding & foam product assembly

Suppose line efficiency falls to 60%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate the effective number of completed mattresses your assembly line can produce per shift, accounting for available time, takt time, and line efficiency.

The inputs for this scenario

  • Shift length: 8 hr (held at the documented default)
  • Bottleneck cycle time: 5 min / mattress (held at the documented default)
  • Line efficiency: 60 % (the input this scenario stresses; the baseline uses 83)

Working through the calculation

  • The calculation starts from the formula this tool documents: Available production minutes = shift length × 60 × (line efficiency ÷ 100).
  • Effective throughput works out to 0.96 mattresses / shift at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 1.6 mattresses / shift at these inputs.
  • Efficiency works out to 60 % at these inputs.
  • Runtime works out to 5 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where line efficiency sits at 83% and the headline result is 1.33 mattresses / shift, this scenario comes in 27.71% below the baseline at 0.96 mattresses / shift.
  • It computes effective mattresses produced per shift by applying line efficiency to available minutes and dividing by the bottleneck station's cycle time. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Effective throughput: 0.96 mattresses / shift (headline result)
  • Raw throughput: 1.6 mattresses / shift
  • Efficiency: 60 %
  • Runtime: 5 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Throughput Per Shift calculator, set line efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.