Conversion Formulas
Calculate lumber weights and footages
All calculations based on net footages
Calculate Board Feet (FBM) from Lineal Feet (LF)
FBM = LF x Width ÷ 12 x Thickness
Example
To convert 3,000 LF of 8" width x 1.25" thickness
Calculate 3,000 x 8 ÷ 12 x 1.25 = 2,500 FBM
PRICE/M FBM INTO PRICE/LF
Price/M ÷ 12 x Width x Thickness ÷ 1000 = Price/LF
Calculate Lineal Feet (LF) from Board Feet (FBM)
LF = FBM ÷ Width x 12 ÷ Thickness
Example
To convert 1,500 FBM of 6" width x 1.5" thickness
Calculate 1,500 ÷ 6 x 12 ÷ 1.5 = 2,000 LF
PRICE/LF into PRICE/M FBM
Price/LF x 12 ÷ Width ÷ Thickness x 1,000 = Price/M
Lumber Weights
Approx. Weight in lbs. per 1000 Board Feet
![Domestic Hardwoods](/userfiles/domestic-hardwoods-calculation.png?width=1419&height=1800)
![](/userfiles/softwoods-calculation.png?width=1419&height=706)
![Imported Hardwoods](/userfiles/imported-hardwoods-calculation.png?width=1419&height=1800)