Florida Axle Weight Limits

Maximum Legal Weight Allowed

Gross Vehicle Weight – 80,000 pounds
Single Axle – 22,000 pounds maximum
Tandem Axle – 44,000 pounds maximum
Note: All of the maximum weights shown above already include the 10 percent scale tolerance.

Van Straight Truck

The maximum weight this truck allowed is 53,141 pounds
Single Axle – 22,000 pounds
Tandem Axle – 44,000 pounds
Length – 14 feet

Tractor Tanker Semi-Trailer

The maximum weight this truck allowed is 73,271 pounds
Single Axle – 22,000 pounds
Tandem Axle – 44,000 pounds
Bridge Length – 36 feet

Tractor Semi-Trailer

Single Axle – 22,000 pounds
Tandem Axle – 44,000 pounds
Length – 51 feet
Internal bridge 1 – 16 feet (maximum internal bridge weight allowed for this length is 48,000 pounds)
Internal bridge 2 – 40 feet (maximum internal bridge weight allowed for this length is 68,500 pounds)

External Bridge:

Maximum legal weight may be determined by measuring the external/outer (distance from the center first axle to the center of the last axle) and locating that distance in the left-hand column of TABLE 2. Read the weight under the correct column for the number of axles on your vehicle.

Internal Bridge (inner bridge):

• There are three requirements which cause a vehicle to be subject to internal bridge:
• Operation on an Interstate highway
• Vehicle or combination is subject to Table 2 o 4 axles and 47' or more wheel base; or o 5 axles and 41' or more wheel base; or o 6 axles and 33' or more wheel base
• Vehicle or combination weighs over 73,271 pounds
• On Interstate highways, your vehicle’s legal weight will also be subject to the internal bridge weight limits found in Table 2 (the distance between the centers of two or more axles, but not the entire external/outer bridge). For example, the internal bridge can be both sets of tandem axles (4-axle bridge) or the axles of the tractor (3-axle bridge).

Dump trucks, concrete mixing trucks, trucks engaged in waste collection and disposal, and fuel oil and gasoline trucks:

Maximum Gross Weight – 70,000 pounds
Maximum Weight on Front Axle – 14,520 pounds

For maximum permit weight allowed, see link https://www.in.gov/dor/files/osowhandbook.pdf 

Source of information: https://www.flhsmv.gov/fhp/CVE/2015truckingmanual.pdf
http://www.fdot.gov/maintenance/STR/OWODP/Weight%20Restrictions%20Charts%20(2016-11-10).pdf