Ensuring proper licensing for oversized deliveries

Oversized loads are common in the building materials industry—think long lumber bundles, trusses, steel beams, and pre-fab components. But moving oversized freight isn’t as simple as loading a flatbed and hitting the road. Without the right licenses and permits, your business could face fines, delivery delays, or even impounded vehicles.

Here’s what you need to know to ensure your oversized deliveries are legal, safe, and efficient.

• Understand What Qualifies as Oversized

Each state or province has its own limits, but generally, loads are considered oversized if they exceed:

Width: Over 8’6”

Height: Over 13’6”

Length: Over 53’ for a trailer (varies by state)

Weight: Over 80,000 lbs gross vehicle weight

Even standard building materials can tip into “oversized” territory when bundled or transported with other heavy items.

• Obtain the Correct Permits

Most oversized loads require a special permit—which may vary based on:

Route (urban vs rural roads)

Time of day (night and weekend restrictions)

Escort vehicle requirements

Load type and configuration

Apply through the state Department of Transportation (DOT) or provincial ministry of transport. Some jurisdictions offer annual or blanket permits for frequent haulers.

• Use Licensed Drivers and Compliant Vehicles

Ensure:

Drivers hold valid CDLs with proper endorsements

Vehicles are rated for the load size and weight

Safety equipment (flags, signage, beacons) is installed and visible

Route plans account for bridge and overpass clearances

This helps avoid roadside violations and keeps deliveries on schedule.

• Plan Routes Carefully

Some roads prohibit oversized vehicles altogether or have seasonal restrictions. Use routing tools or consult DOT maps to:

Avoid low bridges, narrow roads, or construction zones

Comply with time-of-day travel restrictions

Account for weather or terrain conditions

Pre-planning prevents last-minute reroutes and missed delivery windows.

• Keep Documentation Onboard

Drivers should carry:

Oversized load permits

Load documentation

Proof of insurance

Emergency contact information

These are often requested during roadside inspections or weigh station stops.

Final Tip: Even one missed permit can cost your business thousands. Use an internal checklist or ERP workflow to ensure oversized deliveries are planned, permitted, and documented—every time.