Thanks for the compliments! We actually got the idea from a member on YT (I don't remember who) but someone on here has made a ramp very similar to this one. 
 
As for if I would ever make them and sell them? It was actually kinda expensive to make because we actually bought a room sized rug from Home Depot and cut it up to carpet it. I guess you could find cheaper carpet somewhere though. It cost around $65 bucks to make and literally took us 7 or so hours! 
 
  
As for instruction on how to make, my boyfriend used 1/2" plywood and just kind of put it together... can't really explain it, he said. The carpet, like I said, was a huge rug we bought from Home Depot and cut it with a razor blade to fit and attached it with a staple gun and spray adhesive. My boyfriend is handy but has never made anything out of wood so if he can make one then I'm sure your husbands wouldn't have a problem. 
