A great way to expand the space in your garden is to grow your vegetables and fruits up a trellis. It is inexpensive and can be done for under $20. A trellis will add character to your garden and allow you to grow more fruits and vegetables.
I bought the materials at a home improvement store. A bag of six - 6 foot bamboo canes at $2.97 a bag. The chicken wire measures 24 inches by 10 feet and it cost $7.00. You can buy a 3 foot wide role of chicken wire or a roll that is up to 14 feet long. I don't recommend dimensions larger than those.