Gypsum, Drywall & Interior Panel Manufacturing calculator
Cost Per Board Calculator
Estimate cost per board by entering boards produced, variable cost per board from your BOM, overhead absorption rate, and fixed overhead for the run. The formula builds a full-cost number that includes absorbed overhead alongside variable costs.
What this calculator does
- Estimate cost per board by combining boards produced, variable cost per board, overhead absorption rate, and fixed overhead for the run.
- Use it when setting a board price or reviewing the cost stack to confirm that overhead absorption is not eroding margin on a high-volume run.
- The result estimates total run cost and cost per board at the entered volume, variable rate, absorption rate, and fixed overhead.
Formula used
- Variable board cost = boards produced x variable cost per board x overhead absorption rate
- Total run cost = variable board cost + fixed overhead per run
Inputs explained
- Boards produced: undefined
- Variable cost per board: undefined
- Overhead absorption rate: undefined
- Fixed overhead per run: undefined
How to use the result
- Use it when building a board cost model, setting a quote price, or reviewing cost performance against budget for a production run.
- It remains an estimate when variable cost per board, overhead absorption basis, or fixed overhead allocation differs between product grades or shift configurations.
Common questions
- What is overhead absorption in drywall board costing? Overhead absorption is the process of allocating indirect manufacturing costs (such as plant depreciation, utilities, and supervision) to boards produced. The absorption rate expresses what fraction of those indirect costs is recovered by the boards in a run.
- What data should I enter? Use boards produced from the production report, variable cost per board from the current BOM or cost standard, overhead absorption rate from the finance model, and fixed overhead from the cost allocation sheet for this run.
- When is the result only an estimate? It remains an estimate when variable cost per board changes with raw material prices, the absorption rate changes with production volume, or fixed overhead allocation differs between runs.
- What decision can this support? Use the result to set or validate a board price, review cost performance against standard, or identify whether volume changes materially affect cost per board before committing to an order.
Last reviewed 2026-05-12.