Due to an increasing amount of junk valuable possessions, I need to put up some more shelves in my bedroom as an alternative to everything being filed under "F" for "Floor", so I hope the Foc-U fount of all knowledge can help.
I'm looking at getting some of the "twin slot" shelving uprights with the brackets you can simply hook into place to allow me to change the depth of the shelves according to what I'm putting on them, however what I need to know is a) what should I use for the shelves and b) will I just need a bracket at each end or one in the middle as well?
The space I have available is approximately 54" wide, so if I put two brackets 18" apart to divide this into thirds, would that work, or should I put one closer to each end and a third one in the middle to stop the shelves sagging under the load?
At least a couple of them are liable to have books on them and, at a rough weighing, 12" of books is about 3.3kg or 7.5lbs (which works out at about 5kg or 11lbs over 18").
AFAICS the brackets and uprights should be strong enough to carry the weight, I just want to avoid the shelves bending (or even breaking).
Anyone got any useful advice?