On 7/4/2013 11:20 AM, Daniel Prince wrote:
wrote:

....

Don't use drywall screws, they're brittle and will snap under load.

Can you recommend screws that are as easy to drive as drywall screws
but are not brittle?

If they're only in compression and not shear they'll serve to hold
pieces together, but, as noted previously, why? Just nail it together;
if you arrange it right all they're doing is holding the pieces in place.

As suggested before just build the square frame and fasten it to the
wall then use a few strategically-located legs(+) under for supports.
If you either just fit them under (w/ a scab to hold in place) or
(better) notch to match, then the weight is all transferred to them and
the fasteners aren't doing anything to hold up the weight; that's being
borne by the end grain of the legs and the compressive load on the
frame/shelf. No need to make it any more complex than needs be...

(+) Since is garage and you've indicated some existing termite issues,
I'd suggest using p-treated for the parts touching floor/concrete and
the back wall cleat/frame piece. That'll minimize desirability of the
pieces that are in contact and not fully visible at least.

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