Linear Feet Calculator for Rolls, Boards & Pallets
Linear feet measure length along a straight line, where one linear foot is 12 inches. This page solves three jobs that all report an answer in linear feet: how much trailer floor your freight pallets occupy, how much running material a square-foot area needs once you account for face width, and how much extra to buy so cuts and bad pieces do not send you back to the store. Pick freight mode when you are booking an LTL load, and square-feet-to-linear-feet mode when you know the area but order boards, planks, or rolls by the running foot.
How to get linear feet right the first time
Linear feet trip people up because the same number means different things on a trailer, on a floor, and on a fence line. Run these checks before you trust the result, then read the section that matches your job.
Linear feet measure a single straight run. If your figure really describes a surface, you want square feet, and the two never convert without a width to bridge them.
Any measurement taken in inches becomes feet when you divide by 12. A 144-inch board is 12 linear feet; a 48-inch pallet is 4 feet down the trailer.
Freight mode defaults to no stacking. Only mark pallets stackable when the top load can carry weight, or the tool assigns half the floor space the load truly needs.
For any material you cut, add a waste factor before buying. Ten percent is a common starting allowance for straight runs, more for diagonal or pattern-matched work.
Example: oak flooring for a 200 square foot room
Say you are flooring a 200 square foot room with oak planks that show a 5-inch face. Square feet times 12, divided by face width, gives the running length: 200 x 12 / 5 = 480 linear feet of plank to cover the bare floor. Cutting at the walls and culling a few warped boards eats into that, so add a 10 percent waste factor: 480 x 1.10 = 528 linear feet to order. Buy by the box using the coverage printed on the label, and round up to the next full box rather than chasing the exact 528.
Linear feet, square feet, and where people confuse them
Linear feet count length only. Square feet count area, so they need both a length and a width. Cubic feet add height for volume. The three are not interchangeable, and mixing them is the most common ordering mistake. A 12-by-12 room has 48 linear feet of wall around its perimeter, not 144; the 144 is square feet of floor. Materials priced by length, such as fence boards, trim, pipe, and rolled goods, sell by the linear foot because length drives the cost. Rooms and lots get quoted in square feet.
Freight: turning pallets into trailer feet
Freight mode measures your pallets against a standard 96-inch trailer interior. Two 40-inch pallets sit side by side across that width, so each row is one pallet long down the trailer. Pallets wider than 48 inches fall back to one across. The tool counts how many rows your pallets need, rounds any partial row up to a full row because a half-used row still blocks trailer floor, and multiplies by pallet length to return linear feet. Carriers price LTL shipments on that floor length, which is why the number matters before you book.
Square feet to linear feet by face width
When you know the area to cover but buy material by the running foot, divide the area by the exposed face width. Multiply square feet by 12, then divide by face width in inches. A wider board covers more surface per foot, so the linear-foot count drops; a narrow strip covers less, so the count climbs fast. Use the exposed or coverage width, not the nominal cut size. A board sold as 1x6 may show closer to 5.5 inches once installed, and using 6 understates how much you need.
Add a waste factor before you order
The raw conversion tells you the bare length to cover the surface. It does not include the pieces you cut short, the warped boards you set aside, or the offcuts a repeating pattern creates. Add a waste factor as a percentage on top of the linear feet: roughly 10 percent for straight runs, more for diagonal layouts, herringbone, or busy grain matching. If your area figure already includes waste, set the waste factor to 0 so you do not pad it twice.
Where the numbers go wrong
Four errors wreck linear-foot math. Entering square footage in a field that expects a length produces a number that means nothing. Typing 4 instead of 48 for a pallet, or mixing feet and inches, cuts the answer to a twelfth of the truth. Marking freight stackable when the top load cannot bear weight halves the trailer space the tool assigns. Skipping the waste factor on cut material leaves you short before the job is finished.