Changed out the campers carpet, I ran it long until I replaced the cracked threshold/transition piece. However I looked most of the morning and I cant find anything. Camper came with the 1" height p...
For durable, no maintenance, what about a piece of 2x composite material like trex decking? With the carpet that would get you 1-3/4" height, could cut/bevel to the shape you want. If you need to make up a little more height, 1/4" shim under carpet same width as threshold piece