I'm gearing up to build some shelves. Some really long and some really short. My goal is to figure out how on thin I can go depending on how long the piece of Wood/MDF/Melamine is going to be.
I also understand that all 3 materials have different strengths, but lets assume all 3 are the same strength.
For example when I pick up a nice piece of 4x8 - 1/2 inch piece of plywood. As hard as I try to bend it, it doesn't bend. But I never see people using anything less than ~3/4 thickness shelving regardless of the length.
Is there Formula for thickness of Wood/MDF/melamine for shelving?