Board Foot Cost Calculator

Spike VM

This calculator can be used to calculate the board foot of a piece of lumber and the cost of this item based on the board foot price.

Use the nominal values for thickness and width to calculate board feet.

  1. Enter the Board Foot Price
  2. Click on "Add a Board"
  3. Enter the values of thickness and width of the board in their respective fields. (For hardwood thickness the inches have to be entered in decimal format) Example: 2 1/4" needs to be entered as 2.25 1 1/2" needs to be entered as 1.5
  4. Add the length of the board in feet and inches. (Length feet and inches have to be entered in decimal format) Example: 6' 8" needs to be entered as 6.67 and 17' 5" needs to be entered as 17.42

Calculated results:
The Board Feet of item calculated.
Price of calculated item.
Cost of this item if you were to buy it by the lineal foot.

Click on "Add Board" to calculate another dimensional piece of lumber.

The Board Foot Price will let you buy various dimensions of lumber for that price. It will be the same price for 2x4, 2x6, 2x8 2x10, 2x12, 1x10, 1x4, etc. of the same material. The lineal Foot price is what it would cost for each foot of the item you calculated.)

The Total Board Feet and Total Price are the combined results from all your calculations.


Board Foot Price $:  
Use this button to add boards to your form:


Total results will appear here:

   Total Board Feet:
   Total Price:



Hardwood Lumber Nominal Thickness
Quarter SystemNominal (Rough)Nominal (Rough)
InchesDecimal Inches
1/20.5
5/80.625
3/40.75
4/411
5/41 1/41.25
6/41 1/21.5
8/422
12/433
16/444
Softwood Lumber
Nominal SizeActual Size
In InchesIn Inches
1 x 23/4 x 1 1/2
1 x 33/4 x 2 1/2
1 x 43/4 x 3 1/2
1 x 63/4 x 5 1/2
1 x 83/4 x 7 1/2
1 x 103/4 x 9 1/2
1 x 123/4 x 11 1/2
2 x 21 1/2 x 1 1/2
2 x 31 1/2 x 2 1/2
2 x 41 1/2 x 3 1/2
2 x 61 1/2 x 5 1/2
2 x 81 1/2 x 7 1/2
2 x 101 1/2 x 9 1/2
2 x 121 1/2 x 11 1/2
4 x 43 1/2 x 3 1/2
4 x 63 1/2 x 5 1/2
4 x 83 1/2 x 7 1/2
6 x 65 1/2 x 5 1/2
8 x 87 1/2 x 7 1/2



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