Wood movement with solid wood backgammon board

I've built a solid wood (3/8" thick) backgammon board and I'm now wrestling with how to incorporate it into a case. Most backgammon set designs use veneer or paint over ply so wood movement isn't an issue. They can just use the backing as the panels of the case. On mine, however, I can't do this since the board surface will expand. Any ideas on how to accomodate the wood movement?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
jb asks:

Essentially, use a frame and panel structure, with the backgammon board being the panel. As it's a case, you may want to re-orient the frame so that it is thicker in the vertical dimension--relative to the panel--but otherwise, it should work easily (I'd use thick enough material so you won't reduce it to almost zip by cutting the mortise, say 5/4). Use Space Balls or a similar device to slow movement and cut clatter (run a bead of top quality caulk the thickness you need, let it dry, slice it into pieces and insert).
Charlie Self "Half of the American people have never read a newspaper. Half never voted for President. One hopes it is the same half." Gore Vidal
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.