Boards and a quote folder arranged for a purchasing review.
Illustrative purchasing context. No price, grading rule or available stock is established by the image.Use the product label as an identifier
Nominal terminology helps identify a product family but is not a universal finished size. Rough, surfaced and profiled lumber can follow different conventions. A drawing or supplier confirmation should establish actual supplied dimensions and the effective face where coverage matters.
Read the quoted tally basis
A board-foot invoice may use an agreed trade measurement basis that is not the same as multiplying the final surfaced dimensions. Ask the supplier to state the basis and any rounding, minimums or deductions. The comparison worksheet uses your inputs without pretending to implement every trade tally convention.
Keep the purchase and output linked
Record both the quoted quantity and the intended usable coverage or parts. If a quote changes milling or finished thickness, recheck the comparison. A lower material total can buy a different usable result. Do not erase dimension differences just to get a clean ranking.
Keep the invoice basis separate from physical size
A quotation can use a nominal description, a finished dimension and a billing unit at the same time. Write all three down. The nominal name identifies the product convention; actual dimensions describe the supplied piece; the billing basis determines how the quoted rate becomes a line total.
Do not convert a price per board foot using a thickness you assumed from the product name. Ask which dimensions the seller uses for that calculation. A comparison can be mathematically consistent and still commercially wrong if it applies a different tally basis from the quotation.
Work a fictional line item
| Input | Illustrative value |
|---|---|
| Pieces | 20 |
| Length per piece | 8 ft |
| Total length | 160 LF |
| Quoted rate | 8 currency units per LF |
| Board line total | 1,280 currency units before other charges |
These values are arithmetic examples, not prices or stock claims. The line total is reproducible because the unit and quantity basis are explicit. A competing quote per piece can be compared only after confirming its lengths and supplied scope.
Keep physical coverage calculations in a separate column using the actual installed coverage basis. If a seller quotes nominal board feet, preserve that description rather than presenting it as measured finished volume. Request clarification before turning an ambiguous rate into a preferred supplier.
A PURCHASING CALCULATION
A purchasing calculation
Two offers both use a 1×6 product label, but one quotes a different effective face after profiling. The buyer records each actual coverage separately. The price per usable square foot can change even when both offers have the same dollars per linear foot.
Your review record
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A checked box records your review. It is not a professional approval.