Cedar Patio Cover
Unlike fences, where I generally recommend thick steel posts, I recommend cedar 4x4s for patio cover posts.
The reasons are partially esthetics, and partially structural - patio cover posts get less moisture because they have a roof,
plus they will be a lot less prone to vertical cracks because the weight is more evenly distributed.
Cedar patio cover with corrugated metal roof.
Patio cover with corrugated metal roof.