What are they called? They look real nice. Are they useful in vegetable gardens? My mom might like a few of those if they can be used for tomatos / beans.
I made some of those also from 8' sawmill ERC scrap... Of course mine is a little bit bigger and not near as nice as yours... just a wire hoop holds mine in place. But after two hours and I had all six put up and dill seed sowed inside and pickling cucumbers by each leg. Just waiting for them to take off... plan on growing peas on them after the cukes are spent.
I built some out of cypress a few years ago. Yep, they are popular! AND, those "top angles" challenged me when I built the first one! I think I have some pics in my gallery.