How is the inside of a trailer measured?

This is a common point of confusion between the buyer and dealer. Inside height of a trailer is measured to its highest point. If the specs say a trailer has an inside height of 7 feet, this does not mean that the entire inside of the trailer is 7 feet high. Most trailers have bows in the ceiling. Height measurements are measured to the peak bow height which is normally the center. The inside height beside the walls can be much lower than the center.

If you require the entire clearance height inside your trailer to be a specific height, make sure this is written clearly on your order. Ex: “Entire inside trailer finished ceiling height requirement …” Notice that the example included the word “finished”. It is important to understand that when a buyer wants a ceiling to be finished (covered with plywood or other material) this will reduce the inside clearance height by the thickness of the material. If a buyer orders a 7 foot inside height and wants it finished with ½ inch plywood, the inside height will be 6 feet 6 inches.

MAKE SURE TO SPECIFY ON YOUR ORDER WHAT INSIDE FINISHED CLEARANCE HEIGHT YOU NEED, AND IF YOU NEED THE CLEARANCE TO BE THE ENTIRE INSIDE OF THE TRAILER, NOT JUST THE HIGHEST POINT.

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