Hi, I need some advice for putting up a shelf across a window to hold plants. I live in a town house and only have one suitable window so a bookcase under the window doesn't hold much. The window will not allow for installing shelves inside so I have to put a bracket on either side of the window.
I only want approximately an 8" shelf and I wouldn't be putting a lot of weight on it. I'll be putting the screws in studs.
My window is 57-1/2" wide so I figured the shelf would be around 61-62" wide. I keep reading that 36" should be the widest to go without additional brackets. Is this true? Even if I use wood that's not prone to warping?
If the above is impossible, would it be better to hang a shorter shelf somehow with cables from over the top window sills?
Thanks for any help.