Gypsum, Drywall & Interior Panel Manufacturing worked example
Paper Facing Consumption at 98% liner feed efficiency: a worked example
What does the result look like when liner feed efficiency reaches 98%? The full calculation is worked below with real intermediate numbers. Use it when ordering face and back liner rolls before a production run to avoid a roll shortage that forces a mid-shift splice and causes board line downtime.
The inputs for this scenario
- Boards to produce: 500 boards (unchanged)
- Liner area per board: 0.08 sq ft / board (unchanged)
- Liner feed efficiency: 98 % (raised for this scenario; the documented default is 85)
Working through the calculation
- Applying the documented formula (Theoretical liner = boards to produce x liner area per board) to the inputs above produces each figure below.
- At this operating point the engine returns 40.82 sq ft for required quantity, the number this scenario is built around.
- At this operating point the engine returns 40 sq ft for theoretical amount.
- At this operating point the engine returns 0.82 sq ft for loss allowance.
- At this operating point the engine returns 98 % for efficiency.
How this compares with the baseline
- Against the tool's baseline example, where liner feed efficiency sits at 85% and the headline result is 47.06 sq ft, this scenario comes in 13.27% below the baseline at 40.82 sq ft.
- A figure at this level is achievable when liner feed efficiency is genuinely sustained, not just peaked for a shift. It treats facing as a single liner figure; if face and back papers differ in width or weight, run them separately.
Results at a glance
- Required quantity: 40.82 sq ft (headline result)
- Theoretical amount: 40 sq ft
- Loss allowance: 0.82 sq ft
- Efficiency: 98 %
Run it with your numbers
- Every input above is editable in the live Paper Facing Consumption calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.