Baseboard linear-foot formula
perimeter = 2 × (room length + room width)pieces = (perimeter − openings) × allowance ÷ stock lengthThe final count rounds up to a whole piece of molding or baseboard.
Baseboard & trim calculator
Estimate linear footage and stock pieces for baseboard, molding, chair rail, or other continuous room trim.
Enter the room perimeter
Group equal rectangular rooms together and subtract doorways or other sections that will not receive trim.
Plan stock lengths around joints, not only perimeter
The linear-foot total does not know where scarf joints, coped corners, returns, long uninterrupted walls, or defect cuts will occur. A room-by-room cut list can require more stock than the aggregate length suggests.
- Measure door openings and built-ins according to the actual trim path.
- Reserve long pieces for the longest visible runs.
- Keep profiles and production lots consistent when pieces must meet.
Account for corners and joints
Mitered corners, coped joints, scarf joints, grain or pattern matching, damaged ends, and minimum usable offcuts affect the real order. Use a larger allowance for rooms with many short returns.