Baseboard take-off — room perimeter minus the door openings

Trim take-off starts from the perimeter 2×(L+W). Baseboard = perimeter − door widths; crown stays the full perimeter (no door deduction). A 14×12 room with one 32″ door = 52 LF perimeter, 49.33 LF base run.

A top-down plan of a 14 by 12 foot room shows how the baseboard linear footage is figured. The room perimeter is 2 times length plus width, which is 2 times (14 plus 12) equals 52 linear feet. Baseboard does not cross a door, so the base run subtracts the door width: 52 minus 2.67 feet for one 32-inch door equals 49.33 linear feet. Crown moulding gets no door deduction because it runs continuously along the ceiling, staying at the full 52 linear feet, and casing wraps each window or door opening with a quarter-inch reveal held off the jamb. — Source: Per the calculator’s take-off math (perimeter − door openings)

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A top-down plan of a 14 by 12 foot room shows how the baseboard linear footage is figured. The room perimeter is 2 times length plus width, which is 2 times (14 plus 12) equals 52 linear feet. Baseboard does not cross a door, so the base run subtracts the door width: 52 minus 2.67 feet for one 32-inch door equals 49.33 linear feet. Crown moulding gets no door deduction because it runs continuously along the ceiling, staying at the full 52 linear feet, and casing wraps each window or door opening with a quarter-inch reveal held off the jamb.

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    <img src="https://remodelcalculators.com/api/figure-embed/trim-baseboard-takeoff" alt="A top-down plan of a 14 by 12 foot room shows how the baseboard linear footage is figured. The room perimeter is 2 times length plus width, which is 2 times (14 plus 12) equals 52 linear feet. Baseboard does not cross a door, so the base run subtracts the door width: 52 minus 2.67 feet for one 32-inch door equals 49.33 linear feet. Crown moulding gets no door deduction because it runs continuously along the ceiling, staying at the full 52 linear feet, and casing wraps each window or door opening with a quarter-inch reveal held off the jamb." width="800" height="470" style="width:100%;height:auto;border:0" loading="lazy">
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    Diagram: <a href="https://remodelcalculators.com/construction-diagrams/trim-baseboard-takeoff" target="_blank" rel="noopener">Baseboard take-off — room perimeter minus the door openings</a> — courtesy of <a href="https://remodelcalculators.com" target="_blank" rel="noopener">RemodelCalculators.com</a>
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