Construction Products, Windows, Doors & Fenestration worked example
Glass Breakage Cost at 72% glass breakage scope included: a worked example
Here is what the math looks like when conditions slip. We hold every other input steady and drop glass breakage scope included to 72%, then walk the calculation through step by step. Estimate glass breakage cost from broken lites, cost per lite, scope, and fixed handling adders.
The inputs for this scenario
- broken glass lites or IGUs: 31 lites (held at the documented default)
- average cost per broken lite or IGU: 118 $ / lite (held at the documented default)
- glass breakage scope included: 72 % (the input this scenario stresses; the baseline uses 100)
- fixed breakage handling and remake cost: 760 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable glass breakage cost = broken glass lites or IGUs × average cost per broken lite or IGU × glass breakage scope included.
- total glass breakage cost works out to 3,394 $ at these inputs, and this is the headline figure for the scenario.
- breakage cost per lite or IGU works out to 109 $ / piece at these inputs.
- variable glass breakage cost works out to 2,634 $ at these inputs.
- fixed breakage handling and remake cost works out to 760 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where glass breakage scope included sits at 100% and the headline result is 4,418 $, this scenario comes in 23.18% below the baseline at 3,394 $.
- The practical read: the gap between this scenario and the baseline is entirely attributable to glass breakage scope included, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses an average cost per unit — a month where the breakage skews toward expensive triple-pane laminated IGUs will be understated by an average that includes cheap clear lites.
Results at a glance
- total glass breakage cost: 3,394 $ (headline result)
- breakage cost per lite or IGU: 109 $ / piece
- variable glass breakage cost: 2,634 $
- fixed breakage handling and remake cost: 760 $
Run it with your numbers
- To rerun this with your own numbers, open the live Glass Breakage Cost calculator, set glass breakage scope included to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.