The room in our house I use for office space was original a bed room and hence comes with a closet. The wall closet is divided into two sections, the right one has a single door and four shelves. The left, larger section, has a metal tube for hanging clothes and two doors.
Some time ago I replaced the very thin - as in a few millimeters - untreated multiplex shelves in the right section with 1.5cm thick plywood. I also had added a shelve above the metal tube in the left section, and more recently another shelve. But since this section is about 95cm wide the plywood shelves couldn't carry much load; the top one has been carrying two rows of technical books and was already sagging almost half a centimeter.
So today I had planned add support to the bottom shelve using a wooden frame in the center made of four pieces of 35 x 45 mm pine lumber. Originally I wanted to create a rectangle using the four pieces but after some more thinking I decided to use a construct that looks like an H with a beam on top.
Underneath the shelve there is sufficient space for two stacks of Iris Clear Stack boxes, each stack containing two 42 liter (Iris 44Qt, CB-38) and one 31 liter (Iris 33Qt, CB-30) boxes.
The shelve itself is going to carry 2 stacks each of four 31 liter (Iris 33Qt, CB-30) boxes, most of them filled with books. Hence the need for a robust supporting frame.
Todo, probably later this week (Jan 5, 2006).