Conversion Factors

To determine the required board footage or surface measure, multiply the square footage to be covered by the area factor. Add an appropriate amount for waste and trims.

Bevel Siding

1/2x4

1.60

1/2x6; 3/4x6

1.34

1/2x8; 5/8x8; 3/4x8

1.24

5/8x10; 3/4x10

1.18

3/4x6 Rabbetted

1.17

3/4x8 Rabbetted

1.13

5/4x8 Rabbetted

1.21

 

Haida Skirl Siding

15/16x10

1.33

15/16x12

1.33

 

Channel Siding

1x6

1.24

1x8

1.21

1x10

1.16

1x12

1.09

 

Lock-Deck

3x6

3.43

4x6

4.57

5x6

5.72

 

Profile Wood

1/2x4

1.19

 

WWPA Patterns

1x8 WP 2

1.19

1x4 WP 4

1.33

1x6 WP 4

1.20

1x8 WP 4

1.19

1x6 WP 6

1.20

 

WCLIB Patterns

5/8x4 Comb. Ceiling

1.28

1x4 Flooring

1.28

1x6 WC 105

1.20

1x8 WC 105

1.19

1x6 WC 115

1.20

1x6 WC 117

1.20

1x4 WC 134

1.33

1x6 WC 134

1.20

1x8 WC 134

1.19

1x4 WC 136

1.33

1x6 WC 136

1.20

1x6 WC 137

1.20

1x8 WC 137

1.19

 

Disdero A&Btr Cedar Patterns

7/16x4; 1x4

1.23

7/16x6; 1x6

1.15

 

S4S Decking --- 1/8" Spacing

1x4

1.10

1x6

1.07

5/4x4

1.38

5/4x6

1.33

2x3

2.29

2x4

2.21

2x6

2.13

2x8

2.17

 

T&G Decking

2x6

2.40

2x8

2.37

3x6

3.60

4x6

4.58

 

 

 

 
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Linear Feet to Board Feet
Thick
Width
Length
Result in Board Feet

Board Feet to Linear Feet
Thick (inches)
Width (inches)
Board Feet
Result in Linear Feet