How do I build a corner bench for my deck?
Simple really assuming you have the proper tools.


Cut your 4x4's to 18 inch length
Build a frame
Attach to the 4x4 posts
Cut wood to fit the surface of the frame
Add lateral support to the 4x4 posts


To join 2 benches at a corner, figure out your corner angle and modify the plans to match.

Wooden Bench Plans Website