Every part.
A clearer lumber list.
Group dimensions, add an allowance, and keep
whole-stock purchasing separate from your
net project volume.
Workshop shelf project
Scroll the totals table to see bought volume and rounding →
| Stock group | Net BF | Allowance BF | Adjusted BF | Boards | Bought BF | Rounding BF |
|---|
Volume-based whole-stock estimate. Cut layout and saw kerf not checked.
Allowances are entered per group; extra bought volume comes from whole-board rounding.
Build a clearer lumber order.
State the size basis
Use the actual measured dimensions for the most accurate result.
Separate allowance
and rounding
Keep your project allowance separate from whole-stock rounding.
Check the actual cuts
This estimate is volume-based only. Confirm cut layout, saw kerf, and material details before purchasing.
Questions, Answered.
Why do nominal and actual dimensions differ?
Nominal sizes are names or rough dimensions. Surfacing and supplier practice can change measured size. This list calculates from your entered values and never converts automatically.
Is this an optimized cut list?
No. Whole-stock counts use volume divided by volume per stock board, rounded up separately in each group. They do not pack cuts, account for saw kerf, defects or grain. Parts longer than selected stock are flagged.
How are stock boards rounded?
Each stock group adds its entered allowance to net board-foot volume, divides by board feet per stock board, then rounds up. Groups are never pooled. Rounding excess is separate from your allowance.