We just installed Anderson sliding glass doors from our den to the sunroom. The metal frame is about 2 1/2" from the floor. The threshold I bought is only 3/4 on an inch. Is there anything that would gradually slope down so we are not stumping our toes or is it just something we have to get used to? We are older and it seems to present a safety issue for us. I thought about getting a thick carpet but feel we may trip on that as well. Any suggestions would be greatly appreciated.