I want to make a structure with a sloped roof (with dimensions of 8 feet x 6 feet) to collect rainwater and then route it into rain barrels (under the roof) for use in a garden I have in a vacant lot.

I have an idea to build a structure sort of like a rectangular table, but the top will be sloped where one long edge (the 8 foot edge) is lower than the other. I want a gutter on the low edge to collect rainwater and feed it into some rain barrels sitting under the roof.

I'll anchor it with shed anchors, and use corrugated metal for the roof.

There will be four EMT conduit posts (2 will be 7 feet tall, 2 will be 6 feet tall), with a beam (again, EMT) across the back high long edge and a beam across the lower long edge. I'll use t-connectors to run "rafters" (EMT conduit) from the high edge down to the low edge. I'll attach wood 1x6 to the rafters with hanger straps and then nail the corrugated metal to the wood.

I'll put a horizontal brace between the high and low posts on each side. I saw some trellis designs that did this.

Questions:

• it seems like i can build all these just with t-connectors. does this sound right?

• how should I attach the gutter? Should I mount another 1x6 with hanger straps to the long beam?

• How many rafters do I need?

• is there a design in the archives that already does this?

• are shed anchors the easiest and cheapest solution to anchor this so it doesn't blow away in the wind, or is there something better?

Any feedback welcome. Especially anything that saves money or simplifies the build I've never worked with EMT conduit or maker pipe.