Construction Products, Windows, Doors & Fenestration worked example

Insulated Glass Unit Cost at 110% igu cost scope included: a worked example

This scenario runs the insulated glass unit cost calculation on the strong side: 110% igu cost scope included, with every other input held at its documented default. pricing IGUs for windows, patio doors, storefront, or replacement glass orders

The inputs for this scenario

  • insulated glass units in the order: 160 IGUs (unchanged)
  • fully burdened cost per IGU: 148 $ / IGU (unchanged)
  • IGU cost scope included: 110 % (raised for this scenario; the documented default is 100)
  • fixed IGU setup, testing, and freight adder: 1,900 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable IGU cost = insulated glass units in the order × fully burdened cost per IGU × IGU cost scope included) to the inputs above produces each figure below.
  • At this operating point the engine returns 27,948 $ for total insulated glass unit cost, the number this scenario is built around.
  • At this operating point the engine returns 175 $ / piece for cost per igu.
  • At this operating point the engine returns 26,048 $ for variable igu cost.
  • At this operating point the engine returns 1,900 $ for fixed igu setup, testing, and freight adder.

How this compares with the baseline

  • Against the tool's baseline example, where igu cost scope included sits at 100% and the headline result is 25,580 $, this scenario comes in 9.26% above the baseline at 27,948 $.
  • Use it when quoting a window or storefront order, comparing make-vs-buy on sealed units, or setting a per-IGU transfer price between a glass plant and a window assembly line. 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

  • total insulated glass unit cost: 27,948 $ (headline result)
  • cost per IGU: 175 $ / piece
  • variable IGU cost: 26,048 $
  • fixed IGU setup, testing, and freight adder: 1,900 $

Run it with your numbers

  • Every input above is editable in the live Insulated Glass Unit Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.