How to Install a Truck Lumber Rack

A truck lumber rack is ideal for moving sheet lumber and other long pieces of lumber. There are times when the truck bed isn't of sufficient size, and a truck lumber rack can help with this problem. If built properly, it can have many uses, and can be very helpful with hauling items that would otherwise be difficult to haul.

What you will need:

Truck rack kit, tape measure, masking tape, ratchet set, 3/8" socket, torque wrench, marker, utility knife

Installing the truck rack:

1. Assemble the rack using the instructions included with the rack kit. Once it has been assembled, tighten the fasteners with a torque wrench.


2. Put in the mounting pads, which are located at the top of the vehicle's bed rails. Using a utility knife, make notches where you need it mounted for your truck. Place the front assembly on top of the mounting pad. Make sure that the ends with notches are 1/8 inch from the truck's front and away from the cab of the truck.


3. Putting the thick side of the clamp lock toward the clamp, thread it into the assembly. 


4. Position the clamp assembly against the front assembly and push into place. Make sure to push all the way to the ends of the mounting rails on the truck. Check that the clamp blocks are even, or flush, with the lower side of the rail. The clamp assembly's fasteners should be tightened with a torque wrench to 10 foot pounds.


5. After closing the tail gate, install the mounting pads at the back, just as on the front bed. Fasten the mounting wedge into place with tape. Push the clamps for the assembly on the mounting rail, making sure they are flush. Tighten them with the torque wrench.


6. Pull the mounting bar from the back assembly and position it onto the rack's back leg. Repeat the process for the other leg. 


7. Open the tail gate and push the cross assembly on the mounted rails. Tighten them with the torque wrench to 15 foot pounds.