For loads leaving at 100%, the last wall of the trailer is built flush with which feature?

• A. Retainer strap slots
• B. Floor seam
• C. Roof vent
• D. Front wall

Answer: (A)

When a load fills the trailer to its maximum height, securing it relies on solid, unobstructed anchor points where the tiedown straps can run directly from the load to the anchors. The last wall being built flush with the retainer strap slots provides a clean, uninterrupted path for those straps and places the load against a fixed, stable boundary. This alignment helps keep the load snug and minimizes movement during handling and transit because the straps can engage the anchors without catching on edges or needing to bend around protruding surfaces.

Other features aren’t used as anchor points for securing loads at full height. The floor seam is at floor level and doesn’t influence strap routing or anchor placement for securing the load toward the rear. A roof vent is up high and not involved in the lower, sidewall strap engagement. The front wall is at the opposite end, not part of the rear anchoring setup.