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Car Accessories: Roof Rack Safety Warning

Updated: Jun. 30, 2017

Don't trust roof racks for large loads

FH11JAU_FACRAC_01-2Family Handyman
Standard roof racks are not meant to carry heavy, wide loads, and can actually tear off at high speeds. Here's what you can do to prevent this expensive disaster.

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Securing roof loads

Prevent roof-rack liftoff

Secure the leading edge of your roof rack cargo to prevent damage to the roof rack. Tie it down to a location under the front bumper—and reduce your speed.

Roof racks are great for moving lightweight cargo around town. Just secure the stuff to your roof rack and you’re good to go. But if you’re moving large, flat items like plywood or mattresses, you have to tie the load to the vehicle as well as the rack. A friend tied a mattress to his roof rack and took off for his cabin. As soon as he hit 40 mph, he heard “pop, pop, pop.” The “air lift” had ripped the rack mounting bolts right out of the roof (see photo). The body shop repairs cost more than the value of the mattress (and way more than a set of tie-down straps). You’ve been warned.

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here’s a list.

  • Tie-down straps or rope