I was asked to remake this lattice assembly. Its pretty punky in spots, and clearly pretty severely warped as you can see in the pic. Overall its about 4' x 8'. Obviously the wood species needs to be rot and insect resistant as well as dimensionally stable. The slats in the lattice grid are about 11/16" thick and 1 1/4" wide. Biggest concern is keeping the longer slats straight & flat. My plan is to use rift sawn white oak. I had also considered using western red cedar, spanish cedar, or perhaps sapele; I just don't think that any of these options will provide the necessary dimensional stability. Any thoughts? Other species that I may be overlooking?
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