Best bet is to call Thor and see if they can give you the specs. Another option is the try and remove another section in a bench or couch. Use that to patch. Not all sections are glued. Never know ya might get lucky.
Are you able to cut a piece from underneath something like a bed or under the fridge and use that as a patch? I have done that in the past in my house and used a piece that was under a wash machine in a laundry room.
Tom and Lisa
2015 Challenger 37TB
2015 Ford Taurus toad