E-track in a box truck: a load securement guide

E-track in a box truck is the backbone of load securement: two or more rows of slotted steel rail along the walls that straps, load bars and shoring beams lock into. Most box truck freight is partials, which means a load that does not fill the box and has room to slide. Securing it right is a federal rule, and it is also the cheapest way to avoid cargo claims, rejected deliveries and a broker who stops calling.

This guide covers the gear (E-track, logistic straps, load bars, blocking), what 49 CFR 393 actually requires in an enclosed box, and the habits that keep freight where you put it.

What federal rules require in a box truck

The cargo securement standards in 49 CFR 393.100 to 393.136 apply to commercial motor vehicles, box trucks included. The core idea in 393.106: cargo must be firmly immobilized or secured on or within the vehicle by structures of adequate strength, dunnage, shoring bars, tiedowns or a combination.

Three details matter most in a box:

• Performance standard (393.102). The system must hold against 0.8 g of deceleration forward, 0.5 g rearward and 0.5 g sideways. In plain words: a hard stop, a hard launch and a sharp turn.
• The walls count. 393.102(c) treats cargo as meeting the standard if it is carried in a sided vehicle with walls of adequate strength and placed against the walls or other cargo. A full, tight box of freight nosed to the front wall can meet the rule with little extra.
• Gaps need tiedowns or blocking. If freight can move, it needs restraint. Under 393.106(d), the tiedowns on an article must have a combined working load limit of at least half its weight. Under 393.110, an article not blocked from moving forward needs one tiedown if it is 5 ft or shorter and 1,100 lb or less, two if heavier or 5 to 10 ft long; once blocked from forward movement, one tiedown per 10 ft of length.

Freight likely to roll, such as drums, rolls of material or wheeled carts, must be chocked, wedged or cradled (393.106(c)).

The driver also has to check securement before the trip, inspect it within the first 50 miles, and re-check it at each change of duty status or after 3 hours or 150 miles of driving, whichever comes first (49 CFR 392.9). Sealed loads you have been told not to open are an exception. Build those checks into your stops.

The gear: E-track, straps, load bars and blocking

Gear	What it does	Box truck notes
E-track	Slotted rail on the walls (sometimes the floor) that fittings lock into	Two rows on each wall gives you choices for short and tall freight
Logistic straps	Ratchet or cam straps with E-track fittings on both ends	Check the working load limit printed on the strap
Load bars and shoring beams	Bars that wedge wall to wall or lock into E-track behind the load	Fast for pallet loads; set them tight against the freight
Blocking and dunnage	Wood, airbags or empty pallets that fill gaps	Fills space so freight can't shift sideways or back
Moving blankets and corner protectors	Protect freight from straps and walls	Cheap insurance against cosmetic claims
Chocks and wedges	Stop round or wheeled cargo from rolling	Required for freight likely to roll

A box truck that hauls partials should carry at least two load bars, several logistic straps and a stack of blankets. Brokers often ask "do you have straps and load bars?" before they book you.

How to secure the common box truck loads

A partial pallet load

Tall freight and machines

Tall, top-heavy items tip before they slide. Strap them to the wall at mid-height or higher on the E-track, and block the base. Use corner protectors so the strap doesn't cut into packaging.

Mixed freight and multi-stop loads

Load in reverse delivery order, so the first stop is at the door, and re-secure after every stop. A load that was tight at pickup gets loose once the first two pallets come off.

Loose boxes and cartons

Stack heavy boxes low, light on top, and build the stack against the front wall or a load bar. Use a cargo net or straps across the face of the stack.

Avoiding cargo claims

Most cargo claims on box truck partials come from freight that moved: crushed corners, tipped pallets, punctured cartons. Habits that prevent them:

• Count and inspect at pickup. Note damage on the BOL before you sign it.
• Photograph the secured load before closing the door, and the load as it sits when you open it at delivery.
• Re-check after the first few miles and at every stop, as 392.9 requires.
• Never let a shipper load around your straps. If they load it, you still have to check it.
• Keep the floor and walls clean. Debris and nails puncture packaging.
• Know your cargo policy's limits and exclusions, covered in our guide to box truck insurance.

A load that slides into the door can also hurt someone when the door opens. Open the roll-up door slowly and stand to the side.

Make securement part of every pre-trip

Add your straps, load bars and E-track condition to your daily walk-around; our box truck inspection checklist includes them. Brokers posting freight on load boards for box trucks often list "straps and load bars required," and a truck that shows up without them loses the load.

Good securement keeps you in a broker's good books, and repeat brokers are where steady box truck loads come from. If you'd rather focus on the truck and the freight while someone else finds and negotiates the loads, our dispatch service for box trucks does that for 26 ft trucks.