The method you use to secure the lumber will depend on what kind of roof rack you have.
Securing lumber to roof rack.
Secure it to the roof rack.
Just make sure to follow the same basic principles outlined above.
Next pull the long end of the strap under the crossbar on the.
Wood recommends a webbing strap with a fastening buckle that doesn t use a ratcheting system.
Ask for help from friends if.
For plywood i put two 2 x 4 s on the roof rack and place the plywood on top of those to stiffen the plywood otherwise it flops up and down at highway speeds.
For lumber its fine as long as.
Simply wrap each strap around a solid anchor point thread the strap through the buckle and pull until secure.
For infrequent use though truck rental is a better option.
If you have an suv and need to haul lumber often a trailer would be a better option than a roof rack.
Use a tie down that wraps around the item and the rails.
Most include tie down straps for attachment.
Not only that but the cost of a roof rack is easily 5 10 times more expensive than a one day truck rental.
Then i use the nylon web tie downs i ve got in the photos of below.
Some roof bags mount to roof racks or raised side rails some mount to roof baskets and others mount to naked roofs.
Remember to place a distance of about 3 to 3 foot in between.
Both water resistant and waterproof bags are available.
First loop the strap under the roof rack s crossbar and drape the loose ends over your oblong load i e.
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.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
Adam davis dec 10 15 at 15 03.
According to wood ratcheting systems apply a significant amount of crushing force on whatever you re moving so you can go in excess of what s necessary on both whatever you re carrying as well as the vehicle.
In case you have no idea how much weight your plywood sheet is a sheet of inch plywood is approximately 100.
The lenghts are short enough that the can be secured laterally.
Use ratchet straps that can handle the weight of your load and check that the roof rack is secure enough to provide a proper anchor.
Roof racks on small suvs tend to be rather close together so the dont give much holding strength both against lateral movement or vertical movement on anything long.
Oh and remember to.
On a roof rack step 1.