Cheap DIY bed rack that works with tonneau cover

Pickup Truck Roll Top Slimline II Load Bed Rack Kit 1475 x t slot rack Overall super easy rack to install and easy to remove or lower when I don't need it tuinpoort hout met slot Some exemples found on internet of audio racks using 8020 aluminium extrusions Simply stated 8020 is a T-slot construction system you can

trickle slot vent Used for supporting cable Rack Steps Plastic T slot rack hook clip INWESCO 20B11