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Freight Linear Feet Calculator

By Nick Major · Founder, Calculator Campus Last updated July 2, 2026

This freight linear feet calculator finds how much trailer floor space your pallets need. LTL carriers use that number to price your shipment — more floor space means a higher rate. The tool handles standard 48-inch pallets and mixed loads with stackable and non-stackable freight. Shippers, brokers, and warehouse teams use it to get a solid number before requesting an LTL quote. Enter pallet count, dimensions, and stack type to see your linear feet.

Start with the standard identical-pallet flow. Switch modes only when you need mixed pallet sizes or a density-based freight-class estimate.

Calculation mode

Standard estimates one identical pallet size. Mixed Pallet Sizes lets you enter several L × W × H × count rows. Freight Class / Density adds shipment weight and an estimated NMFC class.

Choose inches or centimeters for every pallet dimension you enter.
Total identical pallets in the shipment.
Front-to-back loaded pallet length that consumes trailer floor.
Side-to-side loaded pallet width. Widths of 48 inches or less can count two across.
Choose how many pallets can safely stack vertically before floor rows are counted.
For mixed mode, enter each type as LxWxHxCount, separated by semicolons.
Shipment weight used to compute density and the density-based NMFC class estimate.
Advanced options
Trailer 53 ft dry van Notes Standard 96-inch trailer-width pinwheel rule applied.
Loaded pallet height. It is needed for density mode and included in mixed pallet rows.
Kilograms are converted to pounds before density is calculated.
Use this to document the equipment you are planning around; the core pinwheel rule uses a 96-inch trailer interior.
Linear feet 20 ft
10 LF rule Yes — 10 LF or more
Total pallets 10 pallets
Show calculation details
Trailer rows 5 rows
Trailer type 53 ft dry van
Notes Standard 96-inch trailer-width pinwheel rule applied.

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How to check the math

Standard linear feet with pinwheel and stacking

Divide count by stack level and round up. Halve the rows when pallets are 48 inches wide or less. Multiply rows by pallet length and divide by 12, rounding up.

Effective Quantity = Ceiling(Quantity / Stack Level); Rows = Ceiling(Effective Quantity / 2) when pairable, else Effective Quantity; Linear Feet = Ceiling(Rows × Pallet Length / 12)
Mixed pallet linear feet

Calculate linear feet for each pallet type on its own. Add all results to get the total trailer length needed.

Total Linear Feet = Sum of Per-Type Linear Feet
Density and nmfc freight class

Multiply each pallet type's volume and sum all types. Divide shipment weight by total cubic feet. Match the result to the NMFC table to find freight class.

Total Cubic Feet = Sum of (Pallet Length × Pallet Width × Pallet Height / 1728 × Quantity) per type; Density = Shipment Weight / Total Cubic Feet; Freight Class from NMFC Thresholds
Methodology

How the answer is computed

The tool applies the pair-and-round rule that most LTL carriers use to set rates. It reads each pallet's stack level first. Items marked as stackable combine into one effective floor unit instead of two. Then it pairs those units side by side across a 96-inch trailer, fitting two 48-inch pallets across the width. It multiplies the number of pairs by the pallet length to get a total in inches. Finally, it converts that figure to feet and rounds up to the nearest whole foot.

Worked examples

See the math step by step

LTL shipment with stackable and non-stackable pallets

A freight shipper in Chicago books an LTL move with two pallet groups on one bill. The first group holds six 48 × 40 inch machine-parts pallets, each 50 inches tall and stackable two high. The second has four 48 × 48 inch pallets of fragile equipment at 60 inches tall, which cannot be stacked.

For the first group, stacking two pallets high cuts six to ceil(6 ÷ 2) = 3 effective stacks. Those pallets are 40 inches wide, so the carrier fits two stacks across the trailer. Three stacks pair into ceil(3 ÷ 2) = 2 rows. Two rows of 48-inch pallets occupy ceil(2 × 48 ÷ 12) = 8 linear feet.

The non-stackable pallets stay single: ceil(4 ÷ 1) = 4 stacks. At 48 inches wide, they also pair two across: ceil(4 ÷ 2) = 2 rows. Two rows of 48-inch pallets add another ceil(2 × 48 ÷ 12) = 8 linear feet.

Both groups together claim 8 + 8 = 16 linear feet of reserved trailer space.

Twelve non-stackable sofa pallets on a single LTL shipment

A furniture retailer in Dallas ships twelve non-stackable 48 × 48 inch sofa pallets to a Houston distribution center. Each pallet holds one wrapped sofa and cannot support weight on top.

Because the pallets cannot stack, all twelve remain as single stacks: ceil(12 ÷ 1) = 12 effective stacks. Each pallet is 48 inches wide, right at the pairing threshold. The carrier fits two pallets side by side across the trailer floor. Twelve stacks pair down to ceil(12 ÷ 2) = 6 rows.

Six rows of 48-inch pallets fill ceil(6 × 48 ÷ 12) = ceil(288 ÷ 12) = 24 linear feet of trailer floor.

When to use this calculator

Use this calculator when booking an LTL shipment that spans 6 or more pallets. At that size, most carriers apply linear-foot pricing rather than standard class-based rates. Non-stackable freight triggers the same need. Those loads cannot share trailer height with other freight, so each non-stackable pallet adds its full pallet length to your total. Mixed loads with varying pallet sizes benefit most from this tool, because each pallet's dimensions factor into the final number.

What a Linear Foot Means in Freight Shipping

A linear foot is one foot of trailer length measured along the floor. It tracks only one dimension: how far your freight runs from the front of the trailer to the rear. Standard 48-inch pallets add 4 linear feet each when placed end-to-end. When two pallets sit side by side across the trailer, they share those 4 linear feet rather than doubling them. A load of 40 linear feet fills roughly 75 percent of a standard 53-foot trailer.

Trailer Capacity and the LTL Threshold

A standard 53-foot dry van trailer holds up to 53 linear feet of pallet space. Shipments under 10 linear feet typically qualify for LTL pricing, where you pay for only your share of the trailer. Between 10 and 28 linear feet, carriers may offer volume LTL rates. Above 28 linear feet, many carriers quote a truckload rate instead. Your load takes too much trailer floor to share efficiently with other freight.

Linear Feet, Square Feet, and Cubic Feet

These three units each measure a different thing. Linear feet track how far along the trailer floor your pallets run — length only. Square feet measure floor area, which applies to flat, floor-loaded cargo like loose cartons or rolls. Cubic feet measure total volume, which matters for density-based freight class ratings. LTL carriers price on linear feet because that controls how much space other shippers lose when your load is aboard.

Assumptions

What we assume

  • The formula assumes the trailer's usable interior width is exactly 96 inches.
  • The result treats two pallets as a side-by-side pair when each is 48 inches wide or narrower.
  • The formula accepts whole-number pallet counts only and rounds any decimal entry up to the next full pallet.
  • The result takes the stack level you enter as correct and does not verify freight weight limits.
Limitations

What this skips

  • Excludes non-standard pallets wider than 48 inches, which a standard trailer cannot fit side by side.
  • Excludes floor-loaded freight where cartons are stacked directly on the trailer floor without pallets.
  • Does not account for cylindrical cargo like rolls or drums that lack a standard rectangular footprint.
  • Ignores carrier-specific linear foot rules that vary by contract, lane, or freight class.
  • Excludes multi-stop shipments where pallets load and unload at different points along the route.
Common mistakes

What people miss

  • You enter pallet length in inches instead of feet, so the result reads 12 times too small.
  • You count each pallet separately when two narrow pallets placed side by side share one linear foot.
  • Forgetting to round up the total to the next whole foot gives a figure your carrier will adjust anyway.
  • Adding a stack level your freight cannot safely support makes the calculator show fewer linear feet than you need.
  • Mixing non-stackable pallets into a stackable tier hides the extra floor space those pallets actually require.
References

References

  1. Linear feet calculator — freightrun.com

    freightrun.com · accessed 2026-07-02

  2. How to calculate linear feet for shipping — thebrimichgroup.com

    thebrimichgroup.com · accessed 2026-07-02

Frequently asked questions

How does a linear feet pallet calculator figure out trailer space?
A linear feet pallet calculator finds how much trailer floor space your pallets need. It pairs pallets side by side when possible and converts the total to linear feet.
Does stacking pallets change the total linear feet of my shipment?
Stacking pallets does not change the linear feet count because linear feet measure floor length, not height. Carriers that mark freight as do not stack will not allow a higher stack claim. The rule holds even when the cargo physically fits within the trailer height.
How do you calculate linear feet for freight?
Divide your total pallet count by 2, then multiply by pallet length in inches. Divide that result by 12 to get freight linear feet. Linear feet count trailer length used, not floor area or total volume.
How much trailer space does 40 linear feet represent?
A shipment that size usually forces a volume or truckload rate.
What does a freight linear feet calculator app do?
A freight linear feet calculator shows how many feet of trailer your shipment needs. Most LTL carriers price by linear feet above a 10 to 12 foot threshold. The tool flags when your shipment crosses that line, helping you choose the right rate type before booking.

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