If you want lightweight strength, build it out of aluminum, not wood. You could bolt the aluminum 1" bar together with brackets instead of welding, and it'll still be lightweight.
Edit again, this is made out of steel, but it's still very light. Skinned with 3/4" plywood the weight is tripled and it's still light enough to move and install by myself.
Edit again, this is made out of steel, but it's still very light. Skinned with 3/4" plywood the weight is tripled and it's still light enough to move and install by myself.
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