I installed etrack in my cargo trailer with 1" wood screws with a 3/8 head. Every hole on the track has a screw and I strap down both my Harley's on the track. Did the same on the walls and ran track the full length of the trailer 36" above the floor. Works great with the track clips and tie downs.
2013 Ram Longhorn 3500 Crew Cab 6.7 Turbo Diesel, Aisin Transmission.
2014 Jayco Eagle Premier 351 RSTS, Mor/Ryde Suspension and Pin Box, 17.5" wheel upgrade, 18k Pull Rite hitch.