According to Edwin Pawlowski :

wrote in message
oups.com...
Hi all,
I'm looking to build a room divider 6 feet high by 18 inches wide,
using 1 inch by 1 inch wood. The plan is to paint the frame white, and
fill in the frame with wallpaper. Can anyone recommend a good wood
species that will stay true and not warp over time?
Thanks in advance for your help.

Instead of wood, consider MDF since it will be painted. Compared to wood,
MDF is very stable dimensionally. Plywood is a good choice aside from the
edges. I don't know that it will fit your design.

It sounds as if he's building the room divider as a "panel" with 1x1 framing,
and some sort of panel material. Short of making the panel out of something
big and heavy (like 3/4" MDF), perhaps the simplest/cheapest would be 1x4 poplar
plus 1/8" or 1/4" hardboard tempered on both sides. If properly sealed _both_
sides and at the same time, it should stay stable.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.