How can I add a shelf?
I have a narrow window base on our slider. I have little solar figurines and small bird houses that I would like to display in this window, too many on one looks overcrowded. (The window overlooks a weathered gray fence and the side of our neighbors house-not pretty.) The window measures 59" across and is 4.25"deep. How can I add a shelf? Glass or acrylic? I was maybe thinking of acrylic but I thought it would bow in the middle. Where is the best place to install brackets? (I would prefer to install brackets inside the window well.)