Advice on gate for my run?

Going the cheap route, I used two old shutters and two 2x4's.

 

We built a door--not a gate--but the principle could be the same. We ran 2x4s all the way around and put plywood bracers in the corners (a kickboard and two triangles on the top. We attached the extra wire from the run and added a crossbar and a latch. It's a VERY sturdy door, for people with no experience in that department. Oh yeah--we were able to pick up a "screen door set" at Lowes that had tow springy hinges and a handle (which we did not use) The hinges are great because the door latches behind us. The same thing might work on a smaller scale.

 

I bought a wooden screen door @ Lowe's ( big box hardware store) for $20
and installed hardware cloth on it - with 2 hatch style clasp locks.

...this pic is before I put the locks and hardware cloth on......

 

Here is mine. 4'x6' door.



Posts on either side are plum, level and square to each other. Tied the two posts together with a header. Built a door that was 5/8" skinnier and shorter than the opening. Notice the bracing in the corners, that keep the door square. Gussets (triangle of plywood) on the corners would also work.

 

So it's not a "gate" per se, but this is what my boyfriend did for the composter he just made me. It's just regular 2x6's attached with a plain hinge and a very simple locking mechanism. He put the vertical pieces in to prevent sagging. Hopefully this will give you some ideas.