Calculator / Decision example
Why a linear molding budget differs from a miter cut plan
Written for this calculation decision · reviewed October 12, 2026 · TwoCut.
Frame geometry is the first calculation
On a 96 × 72 in treatment area, put two columns and one row of frames inside 6 in outer margins, with a 4 in gap between columns. Each box is (96 − 12 − 4) ÷ 2 = 40 in wide and 72 − 12 = 60 in high. Two perimeters total 2 × 2 × (40 + 60) = 400 in.
Total length does not tell you whether the cuts fit
Dividing 400 by a 96 in stock length gives five sticks as a linear lower bound. The actual pieces are four 60 in members and four 40 in members. A 60 + 40 pair already exceeds 96 in before kerf; an arithmetic average cannot make that pair fit. The calculator’s working cut plan for this layout uses six sticks, before any optional purchase allowance.
Long points and short points must be identified
For 1.25 in trim at 45 degrees, a 40 in outside long-point dimension corresponds to a 37.5 in inside short-point dimension. The 60 in member similarly has a 57.5 in inside span. Mark the reference edge on the molding; measuring the short points as though they were outside dimensions changes the frame size. Kerf and stock-end preparation reduce usable length.
Choose a practical alternative
Longer stock or a changed frame width may permit different packing, but this tool’s stock plan is built around 8 ft pieces. Check every cut and grain orientation instead of assuming a percentage allowance optimizes the layout. The Home Depot accent-wall instructions provide marking and miter context; the grid and packing arithmetic are independently derived. A test checks the model, not your saw setup or physical wall squareness.
Compare the purchasing decision
| Alternative | Arithmetic | Buying implication |
|---|---|---|
| Linear lower bound | ceil(400/96) = 5 sticks | Does not assign individual cuts |
| Working cut plan | 6 sticks | Four 60 in and four 40 in members do not pair on 96 in stock |
These alternatives use the stated model rather than field measurements. A lower headline quantity is useful only when the product inputs and required cuts are correct.