☎  (513) 772-9490
Costs

Storage Trailer vs. Self-Storage: The Real Cost Per Square Foot

By RMA Fleet  •  July 7, 2026  •  3 min read

People compare storage trailers to self-storage units all the time, and on paper they look similar. In practice they are built for different jobs. Here is the honest breakdown.

The per-square-foot number

A 53-foot trailer at our rate works out to roughly 3.33 dollars per square foot per year, and the mid sizes come in even lower per foot. A climate-controlled self-storage unit is usually priced per unit, and once you convert it to an annual per-square-foot figure the trailer is hard to beat for volume.

When self-storage wins

When a trailer wins

The short version: for volume, on your site, a trailer is almost always the cheaper square foot. Slide through the sizes on our home page calculator to see your exact number.

← Back to all posts See Trailer Sizes