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Frequently Asked Questions

Need help? Here is a list of our most frequently asked questions. Please contact us with any other questions, and we will be happy to assist you.

What are the weight restrictions for 20′ and 40′ containers?

Gross Maximum cargo weight:

  • 20′ with slider chassis-38,000 lbs
  • 20′ with triaxle chassis-44,000 lbs
  • 40′ with gooseneck chassis-44,00 lbs
  • 40′ with spread-axle chassis-47,000 lbs
  • 20′ or 40′ via flatbed-38,000-39,000 lbs
  • 20′ via stepdeck-37,500 lbs
  • 20′ via double drop-38,000-39,000 lbs
What are the weight limits per axle on a truck/chassis?
 20′ slider20′ triaxle40′40′ spread-axle
Steer axle12,000 lbs8,000 lbs12,000 lbs12,000 lbs
Drive axle32,000 lbs32,000 lbs34,000 lbs34,000 lbs
Trailer axle32,000 lbs42,000 lbs34,000 lbs40,000 lbs
Gross weight80,000 lbs80,000 lbs80,000 lbs80,000 lbs
What are the height restrictions on stepdecks, double-drops, etc.?

Maximum cargo height on a stepdeck is 10′ 3″.

A double-drop is required for any freight over 10′ 3″.

Maximum cargo height for rail shipments:

COFC—9′ 6″ TOFC—13′ 6″

What is the AVERAGE floor depth for open-top containers and flatracks (varies per SSL, please contact them for specifics)?

20′ open-top—12″

40′ open-top—12″

20′ flatrack—12¼”

40′ flatrack—20½”–24″

What is the maximum cargo weight for refrigerated containers and how much fuel can the gensets hold?

Nosemount gensets hold up to 120 gallons of fuel, and the

maximum cargo weight is 35,000 lbs (20′) and 38,000 lbs (40′).


Underslung gensets hold between 40 and 80 gallons of fuel,

and the maximum cargo weight is also 35,000 lbs. (20′) and 38,000 lbs. (40′).

How much do chassis weigh?

20′ chassis—5,200 lbs
40′ chassis—7,000 lbs

Ready to get started? Contact us today for a free quote!