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Haul Math

Georgia Truck Weight and Size Limits

Legal limits for a truck in Georgia without a permit: Interstate axle and gross weights, height, width, and semitrailer length, each with its official source.

Georgia limits at a glance

Interstate weight limits

Federal law sets the Interstate limits at 20,000 lb on a single axle, 34,000 lb on a tandem, and 80,000 lb gross, with the bridge formula on every axle group (23 CFR 658.17). States may keep higher limits they had before the federal limits took effect ("grandfather rights").

Georgia's single-axle limit is 20,340 lb (18,000 lb + 13 percent, low-pressure tires), listed by FHWA as a grandfathered right.

Bridge formula check with Georgia limits

A 5-axle tractor-trailer is filled in. Change the spacings and weights to match your rig; the limits for single axles, tandems, and gross are Georgia's Interstate limits.

Axle spacings

Center of one axle to the center of the next, in feet. Axle 1 is the steer axle. 4 ft 6 in = 4.5.

Axle weights (optional)

From your scale ticket. Leave all blank to see the limits only.

Your result

Enter your axle spacings and tap "Check bridge formula". A 5-axle tractor-trailer is filled in.

Open the full bridge formula calculator →

Georgia limits off the Interstate

FHWA's summary of Georgia law for trucks in regular operation (no permit), including non-Interstate highways. It reflects state law as of October 1, 2012; check the state for later changes.

Single axle
20,340 lbs. (18,000 lbs. + 13 percent) with low pressure tires / 18,080 lbs. (16,000 lbs. + 13 percent) with high pressure, solid rubber, or cushion tires
Tandem axle
34,000 lbs. / 40,680 on non-Interstate highways (if vehicle is less than 55 feet long and GVW is less than 73,280)
Tridem axle
Per FBF
Gross weight
80,000 lbs.; subject to FBF if gross weight of vehicle is between 73,280 lbs. and 80,000 lbs.
Other
1,000 lbs. tolerance on axle loads

Where Georgia allows more than federal limits

Height, width, and length

Over these limits you need a permit. Georgia oversize/overweight permits (844-837-5500).

Georgia compared with neighboring states

Interstate weight limits, height, and semitrailer length. "Pending" means not yet verified.
StateGrossSingleTandemHeightSemitrailer
Georgia80,000 lb20,340 lb34,000 lb13 ft 6 in53 ft
Alabama80,000 lb20,000 lb34,000 lbPendingPending
Florida80,000 lbPendingPending13 ft 6 in48 ft
North Carolina80,000 lb20,000 lb38,000 lb14 ft53 ft
South Carolina80,000 lb20,000 lb35,200 lb13 ft 6 in53 ft on the Interstate and designated…
Tennessee80,000 lb20,000 lb34,000 lbPendingPending

Sources

Source: FHWA, Compilation of Existing State Truck Size and Weight Limit Laws (Report to Congress, May 2015), Appendices A and B · Effective Oct 1, 2012 · Last verified Sep 28, 2026

Source: FHWA, Compilation of Existing State Truck Size and Weight Limit Laws (Report to Congress, May 2015), Appendix A: Georgia · Effective Oct 1, 2012 · Last verified Sep 28, 2026

Source: 23 CFR 658.15, Width (eCFR) · Last verified Sep 28, 2026

Source: 23 CFR part 658, Appendix B, Grandfathered Semitrailer Lengths (eCFR) · Last verified Sep 28, 2026

Source: Georgia DOT, Oversize Permits: Legal Maximum Size Limitations · Last verified Sep 28, 2026

Source: FHWA, Oversize/Overweight Load Permits: State permit contacts · Last verified Sep 28, 2026

Limits change, and cities, counties, and posted bridges can set lower ones. Check with Georgia before you run a load near the limits. Page data last verified Sep 28, 2026.

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