The trailer you pull determines your freight universe, your rate ceiling, your insurance costs, and which dispatch program fits you. Choose deliberately.
Dry van
Highest freight volume in the country. Easiest to load and unload. Lowest rates and lowest complexity. Great starter equipment — and the easiest lane for a new dry van dispatch program to keep loaded consistently.
Reefer
Higher rates than dry van (typically +$0.20–$0.40/mile). More complex — you own the temperature. Requires reefer fuel budget and constant temp monitoring. Reefer dispatch is a specialty; make sure whoever books your freight understands produce seasonality and continuous-vs-cycle temps.
Flatbed
Highest average rates, but you own the securement. Steel, lumber, machinery, and construction materials dominate. Weather-exposed loads mean canceled runs in bad weather. Flatbed dispatch requires broker relationships in industrial verticals — not a generalist play.
Step deck & specialized
Highest ceiling and highest complexity. Oversize permits, escort vehicles, and specialized routing. Step deck dispatch is best for experienced operators paired with a dispatcher who has permit-and-route experience.
Power only
No trailer at all — you provide the tractor, the broker provides preloaded equipment. Power only dispatch prioritizes utilization and drop-and-hook efficiency over rate per mile.
The bottom line
Most new owner operators start with dry van, move to reefer after 12 months, and specialize into flatbed or step deck once they've mastered the fundamentals. Whichever you run, pair the equipment with a dispatcher who actually knows that segment — not a generalist chasing every load.