Oversized Freight in the U.S.: Permits, Routes, and Pro Tips

Transporting oversized or overweight cargo in the United States requires more than just a big truck — it demands permits, planning, and precision. In this guide, we’ll break down how to move large freight across states legally and efficiently.
📦 What Is Oversized Freight?
Any load that exceeds legal size and weight limits set by federal or state authorities is considered oversized.
Typical limits (may vary by state):
- Width: 8.5 feet
- Height: 13.5–14 feet
- Length: 53 feet (trailer)
- Weight: 80,000 lbs gross
Anything beyond these dimensions typically requires permits.
📝 Oversize Permits and Escort Rules
You’ll need special oversize permits for each state the shipment passes through. Some loads also require pilot cars (escorts) and route surveys.
Cargo1 handles:
- Multi-state permit acquisition
- Escort car coordination
- Bridge/route clearance planning
🚚 Equipment for Oversized Transport
We match your cargo to the right trailer:
- Flatbed Trailers
- Step Deck / Drop Deck
- RGN (Removable Gooseneck) for heavy machinery
- Extendable Trailers for extra-long items
🏗️ Examples of Oversized Loads We Handle
- Construction equipment (excavators, loaders, cranes)
- Industrial machinery
- Prefabricated buildings
- Wind turbine parts & renewable energy equipment
🧭 Planning the Route
Each state has different routing rules. We:
- Use state-approved oversize corridors
- Avoid restricted zones & low bridges
- Minimize mileage to cut permit fees
✅ Compliance Matters
We ensure all oversized transports meet:
- DOT & FMCSA regulations
- Axle weight laws
- Load securement rules
⚠️ Common Mistakes to Avoid
- Not securing permits early
- Underestimating bridge and road restrictions
- Using the wrong trailer type
🚀 Need a Quote for Oversized Freight?
Cargo1 is ready to manage your heavy or wide-load shipment.