Bridge Law Calculator full access for designers and dealers

For truck body and trailer designers and truck and trailer dealers who lay out heavier and more complex rigs. Full-version accounts are open now. Already have one? Sign in to the full version. Need one? Send the form below and we'll set up your account and contact you. Pricing coming soon.

What full access includes

• Straight trucks up to 11 axles (Michigan's per-vehicle maximum): steer, pushers, drives and tags in any mix. The free calculator handles straight trucks up to 3 axles.
• Truck + pup, doubles and triples, and tractor-trailers with more than 5 axles. The free calculator handles tractor-trailers up to 5 axles.
• State bridge laws for every state the rig runs in, Interstate and state highways. The free calculator checks federal rules only.
• The full Advanced editor alongside Guided mode, with every bridge formula and state check on every axle group.
• Saved setups and a company library of your truck and trailer designs.
• PDF weight-layout reports for customers and the shop.

Not ready yet? Use the free version. Need engineering for a specific truck or trailer? Request an engineering quote.