How to Properly Measure Modular Dimensions for Transport

The accuracy of your module measurement can make or break the logistics process, and mismeasurement can negatively impact shipping costs.

Mods, pods, and panels often have dimensions outside of conventional transportation limits, putting them in the oversized freight category. This usually means you will need special permitting for transportation — exactly which permits depend on the route and the specific dimensions. You might be surprised to learn how often clients provide inaccurate information when we first begin working on a project and ask them to measure modular dimensions for transport.

While the task might seem straightforward— measuring module height, width, and depth — there are other details to consider. For example, every protruding A/C unit, each millimeter of protective wrapping, and every securing strap play a crucial role in determining the true dimensions.

Why are exact measurements so important in modular transport?

As modular transportation specialists, we’ve seen firsthand the consequences of mismeasurement. Being off by a mere inch on a module can mean you don’t obtain the correct permits for the height and width of your shipment, cause lags in construction due to delays from unplanned detours, create unforeseen expenses, and generate safety concerns, among other issues. 

“It’s astonishing how a seemingly inconsequential inch can trigger a cascade of prerequisites, particularly in regions with stringent regulations like California,” says Aaron Morton, Director of Sales at Stream Modular.

Measurements to consider prior to transport

The module measurement scope extends beyond what merely fits into the cargo hold of a transport vehicle. When measuring your module you need to account for every appendage, wrapping, eave, strap, HVAC system, piping, plumbing, even the unassuming window sill. 

Each portion of the mod requires measurement at its maximum width and length, and that number may vary along the module. Additionally, for height, the measurement should be calculated with a module sitting on top of its carrier, as the height of the carrier, also counts in the calculation. 

It’s also worth noting that regulations for oversized shipments vary state by state. If your mods, pods, and panels are traveling through multiple states, you need to consider and abide by the regulations  in each state. 

Planning the optimal route for transport

The route by which you can transport your components will depend on the maximum height, width, and length of each module. The DOT and local municipalities will determine the route based on factors such as:  

• Road widths
• Bridge and overpass clearances
• Weight limits
• Sharp turns that could cause overturned vehicles 
• Utility lines that cross roadways
• Required state and local permits 
• Land and transport regulations

Your assigned route will impact transportation logistics, determining what permits, escort vehicles, and potential detours you might need along the way based on the measurements of the vehicle when fully loaded for transport. As the saying goes, every road leads to a destination, but not all routes are equal when it comes to transportation costs and compliance.

Measure twice, ship once

When shipping modular freight, miscalculating your dimensions can significantly increase your transportation costs, offsetting the financial benefits of offsite construction. At Stream Modular, we have deep experience in modular transportation logistics, and we’ve helped many clients obtain precise measurements — down to the last millimeter — to ensure each shipment arrives as safely, legally, and economically as possible. 

If you want to learn more about how to measure modular dimensions for transportation, get in touch to talk to one of our specialists. We’d be happy to help you out.

Stream Modular is a transportation logistics company specializing exclusively in modular construction. We help modular manufacturers and builders transport mods, pods and panels so they arrive on time and safely to the build site.

Read more: 

• What Are the Pros and Cons of Different Trailer Types
• 7 Tips for Modular Transportation Logistics
• In Modular Building Transportation, Start Logistics Planning from the Design Phase