Construction Products, Windows, Doors & Fenestration worked example

Siding Extrusion Capacity at 99% siding extrusion uptime: a worked example

What does the result look like when siding extrusion uptime reaches 99%? The full calculation is worked below with real intermediate numbers. checking whether siding extrusion can meet order demand

The inputs for this scenario

  • Siding extrusion output per cycle: 360 linear ft / cycle (unchanged)
  • Planned siding extrusion cycles: 24 cycles (unchanged)
  • Siding extrusion uptime: 99 % (raised for this scenario; the documented default is 86)
  • Siding first-pass yield: 95 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross siding extrusion capacity = siding extrusion output per cycle × planned siding extrusion cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 8,126 linear ft for good siding extrusion capacity, the number this scenario is built around.
  • At this operating point the engine returns 8,640 linear ft for gross siding extrusion capacity.
  • At this operating point the engine returns 86.4 linear ft for siding extrusion lost to downtime.
  • At this operating point the engine returns 428 linear ft for siding extrusion lost to defects.

How this compares with the baseline

  • Against the tool's baseline example, where siding extrusion uptime sits at 86% and the headline result is 7,059 linear ft, this scenario comes in 15.12% above the baseline at 8,126 linear ft.
  • A figure at this level is achievable when siding extrusion uptime is genuinely sustained, not just peaked for a shift. It assumes a stable die and consistent melt; startup scrap and color-change purge can spike yield losses beyond the steady-state percentage you enter.

Results at a glance

  • good siding extrusion capacity: 8,126 linear ft (headline result)
  • gross siding extrusion capacity: 8,640 linear ft
  • siding extrusion lost to downtime: 86.4 linear ft
  • siding extrusion lost to defects: 428 linear ft

Run it with your numbers

  • Every input above is editable in the live Siding Extrusion Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.