On Thursday, September 8, 2011 4:14:15 PM UTC-7, kansascats wrote:
OK.. been toiling with this for years.

The other day, in Lowes, I spot 12" x 14" L-bracket shelf supports
rated at 100 lbs.

Firstly, to keep boards straight, stickering at about every 18" is
recommended: that suggests you'll want to have five+ supports
under a stack of (for instance) 8' boards.

Secondly, this is steel, right? So if there's any condensation, it
makes rust stains or maybe black marks (in oak).

Third, it's possibly expensive. It's odd how a wire shelf
system has inexpensive shelves, and all the other parts are
stratospheric in price, completely dominating the total cost.

Last, the L-brackets I'm familiar with need screws to hold 'em up;
even if the bracket holds 100#, what is the reliability of a screw
or three? I'm in earthquake territory, it'd be a comfort to see
lots of wood/wood surface contact, like a mortise or through
tenons, holding the load. You can make a pretty good L
bracket with 1x2 ribs and a glued-in triangle of plywood for the web.