Trim and Molding Calculator

Calculate the amount of trim and molding needed for your room, including baseboards, door casings, and window trim.

How to Calculate Trim and Molding

Calculating the right amount of trim and molding is crucial for your renovation project. Here's what you need to know:

Baseboard Calculation

To calculate baseboard length, measure the perimeter of your room and add 10% for waste and cuts. For a 12' × 15' room, you'll need approximately 54 linear feet of baseboard (27' + 30' = 54' plus 10% = 59.4').

Door Casing Requirements

For each standard door (32" × 80"): - Two vertical pieces: 85" each - One horizontal piece: 37" Total per door: Approximately 17 linear feet

Window Trim Guidelines

For each standard window (36" × 54"): - Two vertical pieces: 60" each - One horizontal piece: 41" Total per window: Approximately 13.5 linear feet