As we have previously discussed, this involves a calculation of wood volume. The number of board feet is calculated using the following formula: Board Feet = Length (inches) × Width (inches) × Thickness (inches) / 144. Aside from being a thermal insulator with a higher performance, this spray foam type can also add structural stability to the roof, walls and any other areas where you will apply the spray foam. Usually, both these lumber products may have a somewhat similar in shape and size, but they differ in the calculation of cost. Let's say we have a one-inch thick board that is 12 inches long by twelve inches wide. Simply multiply the width of the board in inches by the length of the board in feet and divide the output by 12: Board Feet = Length (feet) × Width (inches) × Thickness (inches) / 12. £ (pound sterling) Decide on how much lumber you need. Rough lumber measurements in width and thickness are employed when determining board feet, even in situations in which the lumber has already been sanded down. ft.}$$ Multiply by the total number of boards (10) to get the total number of board feet:$$\text{Total board feet = 1.875 × 10 = 18.75 bd. When you are figuring up board feet, keep in mind a waste factor. ft.}$$, Multiply by the total number of boards (10) to get the total number of board feet:$$\text{Total board feet = 1.875 × 10 = 18.75 bd. This is why a 1"x 4" board is actually 3/4" thick and a 2"x 4" board is actually 1-1/2" thick. Once total board feet has been assessed, it is easy to find the cost: $$\text{Total cost = price per board foot × total board feet}$$. If you had a board that was 4" wide you would need 3 of them to get 1 foot wide. BF = w t L / 12 (1) where . This type, however, will require a thicker coating to attain the right R-Value. This is a process where insulating foam gets mechanically sprayed on a surface to build up a layer of insulating material. Rough lumber measurements in width and thickness are employed when determining board feet, even in situations in which the lumber has already been sanded down. If you know the price of each board feet, enter the monetary value so the calculator can give you the Total Cost. Here are the steps for using this board feet calculator: eval(ez_write_tag([[300,250],'calculators_io-medrectangle-4','ezslot_4',103,'0','0']));eval(ez_write_tag([[300,250],'calculators_io-medrectangle-4','ezslot_5',103,'0','1']));eval(ez_write_tag([[300,250],'calculators_io-medrectangle-4','ezslot_6',103,'0','2'])); Don’t confuse a board foot with a square foot. € (euro) Computation will require the square footage of the area that will get sprayed and how the thickness of the foam. Click on the "Calculate" button to generate the results. Enter the actual board width, not the nominal value of the board. For instance, you need 12 pieces of boards which measure 2″ x 4″ x 8′. Computations may be confusing, but with the help of this board feet calculator, the task is a lot easier. If your lumber was 6' long you would need 18 feet board feet for each foot of width. You can either opt for an open cell or closed cell. In this case, you will need $100 (before tax) to pay for the required boards. It has the dimensions, $$\text{1 ft (length) × 1 ft (width) × 1 in (thickness)}$$, Therefore, a single board foot has volume (in cubic inches) equal to, $$\text{12 in × 12 in × 1 in = 144 in}^3$$, Or, equivalently, the volume in the units ft. in² is, $$\text{1 ft × 12 in × 1 in = 12 ft. in}^2$$. It even has an added function to help you estimate the cost of the materials for your project. $ (dollar) How does the board foot calculator compute board footage in general? For this example, suppose that you need 10 boards that are 2.5 feet long, 4.5 inches wide, and 2 inches thick. Enter square feet. Here are some steps to follow for board foot and cost computations. It turns out that the answer is simpler than you think! Just remember that one board foot is equal to a volume of one square foot that’s an inch thick. After entering the measurements, the calculator will automatically generate the Board Feet value. ft.) you need for a project. 1 board foot = 144 in 3 = 1⁄12 ft 3 = 2360 cm 3 = 2.360 liters = 0.002360 m 3; Board feet can be calculated as. If the thickness and width differ, but they have the same length, then whatever the length of the board is, they will have the same number of board feet for the two sizes. One board is a measurement of volume which is equal to one square foot with a thickness of one inch. ¥ (yen). Manufacturers of the product use the same measurement in computing the amount of coverage of spray foam to install. You may also be interested in our Square Footage Calculator, A collection of really good online calculators. Calculate the number of board feet in one of the boards:$$\text{Board feet in one board} = {2.5 × 4.5 × 2 \over 12} = \text{1.875 bd. Like in lumber, a board foot is a ft2 of spray foam insulation that’s one-inch thick. It is also possible to determine the board footage of a given board if the length is measured in feet. To calculate the thickness of the spray foam, it will depend upon the R-Value that the owner has decided on. While both are measurements, the former is for volume, and the latter is for area. This will help you to generate an accurate prediction of the materials you will require and will help to avoid any wastage. Let’s assume the cost for one board foot is $6.50.$$\text{Total cost = 6.50 × 18.75 = \$121.88}$$. A board foot is a common unit of measurement for hardwood lumber. The term board foot is used to describe a volume that is equal to a one-inch thick square foot. You should also take into account those parts of the house which will have insulation. If you have more than one board, then multiply the total number of board feet in a single board by the number of boards: $$\text{Total board feet = board feet in single board × number of boards}$$. This type can attain an increased thermal performance with a lesser thickness. Softwoods are a dimensional type of lumber, meaning they come in uniform sizes. Another way of expressing this is that it’s 1/12 of a cubic foot. When computing for board feet, pay attention to the units. Then enter the values for the Thickness, Width, and Length, and choose the unit of measurement from the drop-down menu. Calculate the number of board feet in one of the boards:$$\text{Board feet in one board} = {2.5 × 4.5 × 2 \over 12} = \text{1.875 bd. Think about what sizes you need. In general, we express the thickness of lumber in increments of a quarter-inch. They will compute your order by board feet. Ask for a dozen two by fours eight feet long at your local sawmill, and you’ll be told that what you really want is 64 board feet of lumber. Put it all together to arrive at a single board foot formula: $$\text{Total board feet} = {\text{length (ft) × width (in) × thickness (in)} \over 12} × \text{number of boards}$$. In foam spraying, the board foot is the industry’s standard measurement. Let’s say the price of each board foot is $4.15. After computing, you can use the board foot calculator to check for correctness. Then the total number of board feet is given by dividing the volume of the board by 12: $$\text{Board feet in single board} = {\text{volume of board (ft. in}^2) \over 12} $$. In simple terms, a board foot is a measurement to determine the volume of hardwood lumber. Let’s calculate the board feet per piece and in total: BF/Piece = 2 x 4 x 8 / 12 = 5.33 board feet per piece, Total BF = 12 (2 x 4 x8) / 12 = 64 board feet for 12 pieces. This means that you can also use the board feet converter for this measurement. You can convert this value to inches using the following formula: 1 board foot = 1 (12) x 1(12) x 12 = 144 inches3. This online board foot calculator can help you determine the number of board feet you need.