Yep, sort of an a-frame / tee-pee. I used four 6-foot tomato stakes, one in each corner of the pot, put them in at an angle and then tied the tops together with some sisal twine. There are no cross pieces. If you were going to go taller you might want to add some in, but if they are too tall you won't be able to reach the top.
I did secure the vines as they grew. I found this green, stretchy plastic-like tomato tie at Lowe's that I use to tie up all my plants.
If you want to lean them up against your shed, you could get that lattice board they sell (like in my pictures) and secure 2x2 to the sides and lean that against your shed. Just be sure you leave enough room for good air movement underneath and so you can reach under to pick any that grow below.
Quoth the chicken, "Fry some more."
AB - Good Eats: Fry Hard II