Have one of those 180 steel framed 10 x 10 two tier roof gazebos that every retailer seems to sell now a days.
How to build a metal roof gazebo.
Apply several coats of wood stain to the wooden components fill the holes with wood filler and smooth the surface.
Kind of like the one in the picture its perm attached over our hot tub.
As you can see in the image we recommend you to clamp the beams to the posts after leveling them and aligning them at both ends.
Drill pilot holes and insert 3 1 2 galvanized screws into the 4 4 posts.
The first step of the project is to attach the 2 6 beams to the top of the posts.
For instance a pergola or verandah is designed to admit only partial sunlight.