Stone, Countertops & Engineered Surfaces worked example
Stone Waste Cost at 35% offcut and yield loss: a worked example
Push offcut and yield loss up to 35% and the picture changes. This example computes every intermediate figure at that operating point. A nesting estimator quantifying yield loss on a slab order before quoting installed square footage.
The inputs for this scenario
- Square feet of slab purchased: 320 sqft (unchanged)
- Slab material cost per square foot: 22 $/sqft (unchanged)
- Offcut and yield loss: 35 % (raised for this scenario; the documented default is 30)
- Slab disposal and dump fee: 150 $ (unchanged)
Working through the calculation
- Applying the documented formula (Stone waste $ = sqft purchased x slab cost per sqft x yield loss% + disposal fee) to the inputs above produces each figure below.
- At this operating point the engine returns 2,614 $ for total stone waste cost, the number this scenario is built around.
- At this operating point the engine returns 8.17 $ / piece for stone waste cost per unit.
- At this operating point the engine returns 2,464 $ for variable stone waste cost.
- At this operating point the engine returns 150 $ for fixed stone waste cost adder.
How this compares with the baseline
- Against the tool's baseline example, where offcut and yield loss sits at 30% and the headline result is 2,262 $, this scenario comes in 15.56% above the baseline at 2,614 $.
- It computes the total dollars lost to slab offcuts plus disposal, and the waste cost spread across every purchased square foot. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- Total stone waste cost: 2,614 $ (headline result)
- Stone waste cost per unit: 8.17 $ / piece
- Variable stone waste cost: 2,464 $
- Fixed stone waste cost adder: 150 $
Run it with your numbers
- Every input above is editable in the live Stone Waste Cost calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.