On Tue, 1 Dec 2020 Sqwertz wrote:
>On Tue, 1 Dec 2020 John Kuthe wrote:
>
>> And today, I went Home Depot and bought a 4x4ft piece of almost
>> 1/2" plywood and will cut 18"x30.5" shelves from and use my
>> remaining 2x2s to mount a stiffener under them, then lay them on
>> the rails, and voila! New shelves at 20" and 40", 18"x30.5" to
>> put the stuff on!
>
>$50 says they're wobbly.
>
>-sw

What is 'almost' 1/2" plywood, do you mean some specialty thickness
like 7/16"?
Plywood makes for lousy shelving, especially if it's interior plywood
with a rough knotty exterior ply. The different plys are of different
woods so absorb moisture at different rates making it warp and
twist... much better to use 5/8" clear pine shelving lumber... looks
richer too... plywood shelving is for poor hippie's book shelves that
they lay across c-ment blocks.
Save that half sheet of plywood for something else, good for crawling
under your vehicle... may be good for parking your riding mower on to
deter dry rotted tires.