Getting an office trailer on-site is faster than most people expect — but only if the site is ready. Most delivery delays come down to four issues: uneven ground, tight truck clearance, utilities that aren’t close enough or aren’t marked, and permits that weren’t pulled in time. This checklist covers all four, in order.

Renting, leasing, and buying an office trailer each make sense in different situations. The right choice comes down to how long you need the space, what you can afford upfront, and whether you want to own an asset or keep capital free.