What construction shippers need from a freight broker
Construction freight is heavily equipment-dependent. Structural steel, precast concrete, lumber, roofing materials, HVAC units, and construction machinery all have distinct loading, securement, and permit requirements that most dry van brokers cannot handle. The right broker for construction freight needs flatbed carrier depth, knowledge of state permit requirements for oversize loads, and experience with job-site delivery requirements — including driver assist and specific unloading windows tied to contractor schedules.
Building materials shipping is highly seasonal and often project-specific, creating volatile demand peaks in spring and summer. A broker with strong flatbed carrier relationships can access capacity when it's tight; a broker relying on spot boards may struggle during peak construction season. Over-dimensional and heavy haul loads require additional expertise: route surveys, pilot car arrangements, and multi-state permit applications that take specialized knowledge to execute correctly.
- Flatbed carrier network depth — direct carrier relationships, not just load board access, for tight capacity periods
- Over-dimensional capability — permits, route surveys, pilot car arrangements for loads exceeding 8'6″ wide or 13'6″ tall
- Securement knowledge — brokers should vet that carriers understand FMCSA cargo securement rules for specific load types
- Job-site delivery experience — construction sites have specific unloading windows, equipment requirements, and access constraints
- Seasonal capacity — what is the broker's flatbed capacity access plan during peak spring/summer construction season?
- FMCSA authority & bond — verify active at li-public.fmcsa.dot.gov
Top Brokers for Construction Freight
Ranked by Transport Topics gross revenueRelated Freight Services
What is the difference between flatbed, step-deck, and double-drop trailers?
Flatbed trailers (48 or 53 ft) handle loads up to 8'6″ wide and 8'6″ tall. Step-deck (or drop-deck) trailers have a lower deck height — typically 10'–11'4″ clearance — for loads too tall for a standard flatbed but not requiring a full double-drop. Double-drop (lowboy) trailers have the lowest deck height and are used for heavy machinery, cranes, and construction equipment that can't clear bridges on a standard trailer. For construction freight, specify the actual height and weight of your load when requesting quotes — the broker needs this to assign the correct equipment type.
How do I get oversize load permits for construction equipment?
Over-dimensional loads (wider than 8'6″, taller than 13'6″, or heavier than 80,000 lbs gross) require state oversize/overweight permits for each state the load travels through. Pilot car requirements, travel hour restrictions, and route restrictions vary by state. Most specialized flatbed brokers (Landstar, PLS Logistics, Load King Brokerage) handle permit applications as part of the load tender, but you should confirm this explicitly. Lead time for multi-state permits is typically 3–7 business days — not suitable for last-minute bookings.
How do I find flatbed capacity during peak construction season?
Flatbed capacity tightens significantly in spring (March–June) when construction restarts across the Midwest and Southeast. Brokers with direct flatbed carrier relationships and dedicated capacity programs perform significantly better than brokers relying primarily on load boards during peak season. Book flatbed loads as far in advance as possible during Q2, and consider annual or semi-annual contract capacity programs with brokers like Landstar, PLS Logistics, or Command Transportation if your volume justifies it.