Reply to "Who Else has built a layout on a door?"

Hollow doors are light weight but can be noisy unless carpeted or some kind is padding is use under the track.  The doorskin acts like a drum head.

I used 36 by 80 inch doorskins over 1 by 2 framing to make my own "doors".

Covered by green marine outdoor type HD carpet.

I used 2 "doors" side by side to get a 6 foot by 7 foot layout in my small dining room.

I have a 072 Atlas loop and a 042 Standard Gauge loop for "testing" trains.

Doors are great for temp or testing layouts, I will use stronger materials for a perm layout.