Minimum terms vary by provider, market, unit and project; compare the committed period, extension rate, early-return rules and pickup timing before choosing a rental.
The minimum term is only one part of the commitment
A quote may show monthly rent while requiring several months of payment. Ask when billing begins, whether partial months are prorated and what happens if delivery or site readiness moves.
Compare the same office and site scope.
Give every supplier the real ZIP, use, size range, term, delivery date and setup responsibilities.
Extensions deserve the same attention as the initial period
Construction and school schedules change. Record the extension rate, notice required, availability risk and whether the provider can remove the unit before the revised end date.
Match the quote to a realistic schedule range
Give suppliers an expected start, likely duration and possible overrun. A complete office trailer rental request should make the minimum and extension assumptions easy to compare.
Turn this answer into a useful supplier comparison
Record the decision that applies to the property, who owns it and when it must be complete. Connect that note to the proposed unit, delivery plan, access equipment, utilities, service and removal so an unanswered assumption does not return later as a change in price or schedule.