The Hidden Math of Pallet Overhang
For manufacturing loaders and dock supervisors, "pallet overhang" might seem like a minor storage issue. But in the world of LTL shipping, it is a financial disaster. Modern LTL carriers use automated laser dimensioners at every hub. These machines don't measure your pallet; they measure the **outermost point** of your shipment. If a single carton hangs just 2 inches off the edge of a standard 48x40 pallet, the carrier records your width as 44 inches—immediately lowering your density and spiking your freight class.
The Footprint Penalty
Carriers sell truck space by the square foot. Overhang effectively "claims" more trailer floor than you declared, shifting your shipment from a dense, profitable profile to a bulky, expensive one.
The Density Law
According to the NMFC, density must be calculated based on the maximum extreme dimensions of the shipment. If the product is wider than the pallet, the product's width is the only width that matters.
Overhang Calculation Example
Imagine a 1,000lb pallet. On a standard 48x40 pallet with no overhang, your PCF is likely high (Class 70).
However, if your product is 52" long (overhanging 4 inches), your density is recalculated using the 52" length. This lowers your Pounds per Cubic Foot (PCF) significantly. In many cases, this small 4-inch overhang is enough to push your freight from Class 70 to Class 100, adding $200+ to a single shipment's cost.
Overhang Prevention Rules
- Center the Load: Always place the product in the exact center of the pallet to minimize singular outliers.
- Oversized Pallets: If your product is 50", use a 54" custom pallet. The cost of a custom pallet is always cheaper than an LTL re-classification fee.
- Density Verification: Use our calculator to check the "Overhang Price" before you book. Key in the product's extreme dimensions, not the pallet's.
Calculate the True Cost of Overhang
Don't guess on your shipment's volume. Using the product's widest points, enter the measurements below to find your real freight class.
Calculate My True Density ⟶