Board Feet to Linear Feet Calculator

Convert lumber volume into length for a specific board size.

All results are estimates. Always verify measurements on site.

Estimator guide

Planning notes for Board Feet to Linear Feet Calculator

100 BF of 2 x 6 lumber equals 100 LF.

Good for

  • rough lumber
  • millwork estimates
  • checking board-foot quotes

How to use it

  • Enter total board feet.
  • Set board thickness.
  • Set board width.
Formula check: Linear feet equals board feet x 12 divided by thickness x width.

Quick Conversions

100 sq ft at 6 in width

200 LF

6 in

LF = (100 x 12) / 6

200 sq ft at 5.5 in width

436.4 LF

5.5 in

LF = (200 x 12) / 5.5

500 sq ft at 12 in roll width

500 LF

12 in roll

LF = (500 x 12) / 12

1000 sq ft at 16 in width

750 LF

16 in

LF = (1000 x 12) / 16

Use Cases

Flooring and Decking

LF = area / plank width

Example

240 sq ft at 6 in width

480 LF

Baseboard and Trim

LF = room perimeter - openings

Example

120 ft perimeter + 2 doors

168 LF

Fencing

Panels = fence line / panel width

Example

200 ft fence line

25 panels

Freight Pallets

LF = trailer length used

Example

53 ft trailer length

212 LF

Board Feet and Lumber

LF = board feet x 12 / size

Example

100 BF, 2 x 6

100 LF

Frequently Asked Questions

A linear foot is one foot of length. It does not include width or thickness unless you are converting from area or board feet.

View all FAQ

Pro Tip

A waste factor of 5-15% helps cover cuts, mistakes, and layout adjustments. When in doubt, round up.

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