The method you use to secure the lumber will depend on what kind of roof rack you have.
Securing lumber to roof rack.
Remember to place a distance of about 3 to 3 foot in between.
For infrequent use though truck rental is a better option.
I use 4 hand clamps at the corners to hold the plywood to the 2 x 4 s.
Secure it to the roof rack.
For lumber its fine as long as.
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.
Most include tie down straps for attachment.
The lenghts are short enough that the can be secured laterally.
Simply wrap each strap around a solid anchor point thread the strap through the buckle and pull until secure.
Ask for help from friends if.
Then i use the nylon web tie downs i ve got in the photos of below.
In case you have no idea how much weight your plywood sheet is a sheet of inch plywood is approximately 100.
Wood recommends a webbing strap with a fastening buckle that doesn t use a ratcheting system.
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.
If you have an suv and need to haul lumber often a trailer would be a better option than a roof rack.
Both water resistant and waterproof bags are available.
Just make sure to follow the same basic principles outlined above.
You dont exceed the weight excessively.
Next pull the long end of the strap under the crossbar on the.
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.
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.
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.
Oh and remember to.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
Use a tie down that wraps around the item and the rails.
Some roof bags mount to roof racks or raised side rails some mount to roof baskets and others mount to naked roofs.