PeeWee
I live in SE FL and grow nearly all my orchids outside. I bring a few in when they are in bloom, and bring all of them inside if the I am concerned about low temps.
I have purchased wire shelves at Target. The prices are pretty reasonable especially if you get them on sale. They are metal and come in different heights and lengths; They come in Black, White and just plain crome. My first was an old picnic table without the sitting benches that has worked out nicely. In fact it is on my to do list to paint it.
Hope that helps! -- Good Luck