Common mobile office sizes range from compact 8×20 units through long single-wides and large double-wide modular offices; the right size comes from people, rooms, circulation and site access.
Compact trailers support focused work
Sizes around 8×20 to 10×32 often serve one to several regular users, gate or inspection work and small field-management teams where site area is tight.
Compare the same office and site scope.
Give every supplier the real ZIP, use, size range, term, delivery date and setup responsibilities.
Long single-wides add rooms without a marriage line
Units such as 10×44, 12×56 and 12×60 can hold private offices, meetings and open workstations, but they need a delivery route and a well-organized linear plan.
Double-wides support facility-scale programs
Two-section and larger modular offices can serve classrooms, administration and major projects. Compare mobile office trailer types before requesting size-specific pricing.
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.