Lay the crossbars on your side rails and grab one of your u bolts.
Homemade roof cross bars.
Ensure that the roof rack is in position and properly adjusted leaving good space at the centre.
25 diy roof cross bars step 1.
Remember to measure both front and back.
My bars were wider at the rear of the car.
Repeat for the other side and the second bar.
I used 5 6 pieces about 1 2in thick to make a beam about 2 5in x 5 in.
After deciding on a general design in my head i headed to the hardware store s plumbing.
Using your u bolt mark where holes need to be drilled on the underside of your crossbar.
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Gather enough planks to form a board that is a little thicker than your bars will be.
You ll notice in the early pictures that four holes are drilled.
If you have factory roof racks that run from front to back you can build your own steel crossmembers using one inch square tubing cut to size and secured to the factory racks using carriage bolts.
Using a flat head screw driver assemble the roof rails to the top of the car by sxrewing the side rails and the cross bars together.
We will rip this into two crossbars later liberally glue the boards and clamp them together.
Measuring and trial fitting.