Construction Products, Windows, Doors & Fenestration worked example

Construction Product Demand Gap with available construction product capacity of 4,600 units: a worked example

This scenario runs the construction product demand gap calculation on the strong side: available construction product capacity of 4,600 units, with every other input held at its documented default. deciding whether production capacity can cover backlog, project demand, or dealer orders

The inputs for this scenario

  • Available construction product capacity: 4,600 units (raised for this scenario; the documented default is 1,840)
  • Required construction product demand: 2,050 units (unchanged)
  • Required demand reference: 2,050 units (unchanged)

Working through the calculation

  • Applying the documented formula (Unit surplus or shortfall = available construction product capacity - required construction product demand) to the inputs above produces each figure below.
  • At this operating point the engine returns 124 % for construction product demand gap, the number this scenario is built around.
  • At this operating point the engine returns 2,550 value for unit surplus or shortfall.
  • At this operating point the engine returns 4,600 value for available construction product capacity.
  • At this operating point the engine returns 2,050 value for required construction product demand.

How this compares with the baseline

  • Against the tool's baseline example, where available construction product capacity sits at 1,840 units and the headline result is -10.24 %, this scenario comes in 1,314% above the baseline at 124 %.
  • Use it in monthly S&OP reviews, before accepting large project orders, or when a builder pulls forward a delivery date and you need to know if the line can flex. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • construction product demand gap: 124 % (headline result)
  • unit surplus or shortfall: 2,550 value
  • available construction product capacity: 4,600 value
  • required construction product demand: 2,050 value

Run it with your numbers

  • Every input above is editable in the live Construction Product Demand Gap calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.