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.
Tying lumber to roof rack.
In case you have no idea how much weight your plywood sheet is a sheet of inch plywood is approximately 100.
Remember to place a distance of about 3 to 3 foot in between.
Adam davis dec 10 15 at 15 03.
Secure it to the roof rack.
With anything you plan on tying down you ll need three preferably four solid points of contact stability.
Not only that but the cost of a roof rack is easily 5 10 times more expensive than a one day truck rental.
Oh and remember to.
Here i have the bicycle s handlebars firmly planted on the roof rack s cross bar in the.
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.
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.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
Then i use the nylon web tie downs i ve got in the photos of below.
On a roof rack step 1.