I'm thinking it would be interesting to share what we have done with the skirting around the outer edges of our layouts. Some layouts I have seen have furniture-grade carpentry polishing it all of beautifully. Others have used fabric. I have used a combination of fabric - to allow for quick entry to the underside - and 3/4" plywood in vertical sheets to prevnt entry and to allow for storage at various points beneath the layout. What a have you done?
Though you may have seen this photo before, I am providing it here to illustrate what I am suggesting by this thread.
FrankM.