Calculator / Decision example
Door position changes the baseboard cut plan
Written for this calculation decision · reviewed October 12, 2026 · TwoCut.
49 feet is a length budget, not a cutting schedule
A 12 × 14 ft rectangular room has 52 ft of perimeter. A single 36 in baseboard-free doorway removes 3 ft, leaving 49 ft. A 10% allowance gives 53.9 ft. Rounding that total to 12 ft sticks produces five pieces, but this arithmetic does not assign any cut to a wall.
Move the doorway and the cutting problem changes
Place that opening in the middle of a 14 ft wall: the two remaining runs are 5.5 ft each. They fit together on one 12 ft stick with room for ordinary kerf. Place the same opening beside the corner instead: the wall now needs an 11 ft run. Both layouts have the same net footage, yet their offcuts are different. The opposite uninterrupted 14 ft wall cannot come from one 12 ft stick; a planned joint or longer stock is necessary.
Choose the alternative using measured runs
If avoiding a joint on a 14 ft wall matters, compare 16 ft stock rather than buying from the five-stick headline. If joints are acceptable, sketch every run and allocate reusable offcuts before ordering. A 15% allowance increases the budget to 56.35 ft, still five 12 ft sticks; a higher percentage alone does not fix an impossible unbroken cut.
Basis and uncertainty
The perimeter and unit conversion are direct arithmetic. The Lowe’s base-moulding instructions provide measuring and allowance context. Opening position is intentionally absent from this calculator. Casing edges, coping, damaged ends and saw kerf must be measured on site; this example is not an optimized stock layout.
Compare the purchasing decision
| Alternative | Arithmetic | Buying implication |
|---|---|---|
| 10% allowance, 12 ft stock | 53.9 ft budget | 5 sticks; 14 ft unbroken run still needs a joint |
| 15% allowance, 12 ft stock | 56.35 ft budget | 5 sticks; extra allowance does not solve the joint |
| 16 ft stock alternative | A 14 ft member fits | Allocate every remaining run before ordering |
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.