Call them luggage racks, roof rail systems, or plain old roof carriers -- even kayak racks or bike racks. Whatever name you're familiar with, roof racks are great ways to expand a minivan's storage capacity. If you're less familiar with what they are, however, know that there are three reasons they're great for hauling gear.

For one, they're reliable cargo weight supports. That's because they're constructed from durable metals like steel or aluminum. Just add crossbars, and you'll discover just how evenly they can distribute that weight, too.

Secondly, they make securing luggage easy. That's thanks to the many anchor points the provide for tying everything down. Crank on a winch, run a bungee cord, or tie up a trucker's hitch, and you'll be more than ready to get on the road.

Finally, they're one of the simplest ways to transport extra gear. The modular towers and feet are a breeze to put together; you can do it in no time with a fitting kit.

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Whatever Sienna trim you're driving, a roof rack made by Toyota will fit it best. Our auto parts store has the complete kit you need in stock, and you can order it directly from your OEM, right here on the Web. Buy now, and we'll ship to your address immediately.