Oversize Load Rate Calculator
Estimated Hauling Summary
Base Linehaul:
Escort Total:
Permits & Extras:
Total Estimated Rate:
How to Calculate Oversize Load Shipping Rates
Shipping an oversize or over-dimensional (OD) load requires far more logistical planning than a standard dry van or flatbed shipment. Because these loads exceed standard legal dimensions—typically 8.5 feet in width, 13.5 feet in height, or 80,000 lbs in gross weight—carriers must account for special permits, pilot cars, and restricted routing.
Key Factors in Oversize Freight Pricing
When using an oversize load rate calculator, several variables dictate the final quote:
- Base Linehaul Rate: This is the standard fee for the truck and trailer equipment. Because oversize loads increase fuel consumption and risk, the per-mile rate is significantly higher than standard freight.
- Escort/Pilot Cars: Depending on the width and height, states may require one or two pilot cars. These are charged per mile, often with a minimum daily rate or "deadhead" fee.
- Permit Fees: Each state the truck passes through requires a specific over-dimensional permit. Prices vary wildly by state and the severity of the dimensions.
- Route Surveys: For extremely tall loads, a route survey may be necessary to ensure the truck can clear all bridges and power lines.
Real-World Example Calculation
Imagine you are moving a piece of industrial machinery that is 12 feet wide over a distance of 400 miles. Your base rate might be $5.00 per mile. If the state requires one pilot car at $1.80 per mile, and you have $150 in total permit fees:
- Linehaul: 400 miles x $5.00 = $2,000
- Escort: 400 miles x $1.80 = $720
- Permits: $150
- Total Estimate: $2,870
Always remember that these rates can fluctuate based on diesel prices, equipment availability, and the specific complexity of the route (e.g., mountain passes or urban centers).