I have a couple questions for you then. Something I always wondered.
Imagine a torsion box, well made with 1/4" ply top and bottom and 1-
1/2" thick. Let's say it's for a shelf 6ft long and 11-1/4" wide. Now
imagine a solid plank, 2x12 construction lumber (not fir). Would you
think the torsion box would be stiffer or would the solid plank be
I would imagine that if one used oak instead of spf, the oak plank
would be stronger than both.
Also, would I be correct in thinking that 2 pieces of 1x12 laminated
together would be stiffer than a solid 2x12? If so, why? (other than
minimizing and spreading out defects, which is pretty obvious)
I know I could probably do some homework and look this stuff up... but
you're here, right?
*That* makes a difference.
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Get it at http://mysite.verizon.net/xico
If you are interested, can tell you how to build this shelf using foam,
knitted fiber glass and epoxy along with the basic wooden shelf that is
say 3/4" thick.
It would probably support at leat 200 lbs, weigh maybe 10 lbs max.
Contact me off list if interested.
You can add an enormous amount of support strength to your shelving by
adding a cleat underneath the front edge of a shelf. This is usually a 3/4
x 1" plywood strip, glued (and preferebly screwed as well) about 1/2" back
from the front edge of the shelf and running the width of the shelf... also
gives a classy look to the shelf.
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