The Difference Between 15 Trucks and 17 Trucks Is Your Margin.

See the fleet a project actually needs before you commit to a price — bid aggressively without discovering an unpriced truck after the job is won.

Florida Axle Weight Limits

Axle spacings and weight calculator

Max Legal Weight for GVW under 80,000 lbs and Max Permitted Weight for GVW over 80,000 lbs

Vehicle configuration

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