It s the best way to carry oddly shaped unwieldy and extra items that might not fit in the car but.
How to tie a box to a roof rack.
Movement and tie downs.
The basic steps to properly and safely secure cargo to the roof of your vehicle are the same whether you re securing your cargo to roof cross bars side rails ladder racks or baskets.
Wood said most roof rack systems for cars have a dynamic roof load of about 165.
It s important to use the right tie downs and place the item correctly on the roof rack if you want to avoid damaging your cargo or causing an accident.
Use ratchet or cam straps to tie the roof rack through the doors not the windows.
Remove your rack when not in use to avoid the added weight drag and noise.
Improper tie down practices are all too common and many accidents and injuries happen because someone didn t take their time loading cargo on the roof of the car.
Assess your rack situation.
Aside from being dangerous this is illegal in most states.
Roof racks have been known to fail at high speeds with lots of updraft so take the extra precaution of tying the roof rack down to the roof of the vehicle as well.
Weave rope through the windows and around the mattress at least four times twice in front and and twice in back including the length wise rope already in place.
Tie each section firmly.
Nylon rope also works but be prepared to tie some trucker s knots.
The only downside of putting you bike on top of a car s roof rack is if you forget it s there and go to a drive through you may smash your bike if you forget.
There s the scenario where there s absolutely nothing on the top of your roof.
It s also crucial to secure your load to guard against movement on all axes front to back side to side and up and down.
Tying a mattress to a car roof falls in a grey area of legality.
For a video and step by step instructions on how to tie down a kayak please see our article on how to tie down a kayak to a vehicle.
By using proper methods you can haul your cargo safely to your destination.
Is tying a mattress to a car legal.
There are really three kinds of scenarios for your roof wood said.