There is a unique difference between site-built structures (buildings, etc.) and factory-built structures such as awnings and canopies.

Many conventional buildings may stand for years before they are exposed to the full loads they were designed to withstand.

Awning and canopy modules experience just the opposite. Immediately after fabrication, they are fastened to a moving vehicle and driven to the jobsite. This exposes the frames to gusting wind pressures. Even at low vehicle speeds, (25 mph to 45 mph) the frames can be subjected to high wind velocities when the direction of travel is against the wind. It is not uncommon to experience combined wind velocities of up to 65 mph; and that's just for low speed travel. These forces can be even higher if the vehicle is driven on the interstate where the transport speed is typically increased.

As a result, all frame modules must be secured to the vehicle in a manner that simulates the actual building attachments.

Seen below are various suggested placement configurations of frames to the deck of a flatbed transport trailer.




The next four images illustrate correct and incorrect placement of mounting brackets for the securing of frames to a trailer deck.