In case you have no idea how much weight your plywood sheet is a sheet of inch plywood is approximately 100.
Tying lumber to roof rack.
I use 4 hand clamps at the corners to hold the plywood to the 2 x 4 s.
Use a tie down that wraps around the item and the rails.
Remember to place a distance of about 3 to 3 foot in between.
The second option is the side racks.
Then i use the nylon web tie downs i ve got in the photos of below.
Secure it to the roof rack.
Here i have the bicycle s handlebars firmly planted on the roof rack s cross bar in the.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
With anything you plan on tying down you ll need three preferably four solid points of contact stability.
On a roof rack step 1.
If you have an suv and need to haul lumber often a trailer would be a better option than a roof rack.
Oh and remember to.
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.
It s best to use a thinner piece of rope and go through an open door and then shut the doors on top of it.