Consider a roof rack.
How to attach something to roof of car.
Wood recommends a webbing strap with a fastening buckle that doesn t use a ratcheting system.
Wood says side rails and crossbars are ideal but you can move whatever you you need to.
With the third option crossbars with side rails you can secure an item to the side rails and run tie downs from front to back securing them to the crossbars.
When you have to tie something down to the roof of the car to a wall of the garage you sometimes need a bungee cord without a rough metal hook at either end.
Step by step instructions for tying items to a car roof follow the directions that come with your products.
Assess your rack situation.
Then on one side stick self adhesive strips of hook and loop fasteners velcro hook side only.
Wrap lumber in a tarp to secure it and place a blanket down on the roof under the load to avoid scratching your vehicle s paint.
Avoid the scraping and gouging with fasteners from the perfect bungee which has an impressive array of cords with tough gentle hooks and loops of molded nylon and polyurethane.
If you have a roof rack the straps ropes can be looped around the side and cross rails.
Buy a small sheet of dark gray or black plastic at a hobby shop and cut out about a 6 inch square.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
When you are tying things down to the roof of your vehicle each.