I am going to hook a strap to the carry handles and strap it to the bed of my truck . My nephew drilled 2 holes in his and bolted a eye hook to the near bottom of it and then got a couple of adjustable like clothes line tensioner hook bolts and bolted his down in the truck . It works good at holding his from moving , but his is wider than mine 48 x 48 inches . Mine is 38 inches wide and 44 inches deep . I was going to trade boxes with him if he wanted to . He likes the top storage on mine and mine is a winter / summer box . His doesn’t have side panels . He cut some himself and made a channel for them to side in for the winter and his doesn’t have a floor , making it much lighter than mine . His I could take in and out of my truck by myself . I use the bed of my truck a lot for work , he doesn’t . He didn’t want to trade because mine is about a 1 1/2” taller than his .
There is a wielder that lives near me that works at the shipyard that builds custom dog boxes . I talked to him before the season about one , but when he told me the price , I started looking for a used one . Then when I couldn’t find a used one , I was going to get a easy loader box until this box popped up for sale . I had just started looking at them . I still might get a easy loader box and sell this one later if it’s to much trouble taking in and out of my truck .