griffengm
Your observation that the plywood will be weakened in a U shape is correct. But I'm not sure of your description to remedy this. I think now that you mean I should cut a second arch of ceder but maybe make it only half of the first arch. Then it should be attached at the top? to...
I am building an arched trellis for my apple plants.
Materials: 1x4 cedar boards 8' long (2)to make the arch out of
1/2" plywood 4x8' as support behind cedar cut for arch
2x4 cedar boards 8' long (2)as the supports spaced 8 feet apart.
Desired dimensions...
