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Quick Question on build but late
PCtech:
--- Quote from: amerish on June 13, 2006, 04:46:13 pm ---If you are concerned, reinforce it.
Or lets look at it from another perspective....
If the shelf failed and the monitor crashed down into your computer, would you be upset that you did not add the extra support?
--- End quote ---
:applaud:
:laugh2:
Crafty:
If in doubt go with the extra support...
To be sure... To be sure...
MARINE1142:
Good point I m glad to have you guys here to straighten me when i m tring to cut corners thanks for looking out for me. I will add the supports.
JohnNevets:
As has been said before, when in doubt go big, and if adding the legs makes you more comfortable, by all means do it. It is by far a stronger way to go.
That being said.... The big problem was when people would screw directly through the sides into the edge of the shelf (think cheep build it yourself furniture) thus all the weight is being put on the thin bit of shelf left above the fasteners, and thus the shelf would fail, not the screws. If you are instead screwing (or better yet lag bolting) through the sides into shelf supports (1x2 firring boards or metal angles are fine, 2x6's are definitely fine as long as the 6" side is flat against the side) and then resting the shelf on top of those supports distributes the weight across the whole shelf support not just the area above the fasteners. The only other thing that someone might worry about it pulling the fasteners all the way through the side of the cabinet, but with the eight fasteners you got holding up under 100 lbs you should have nothing to worry about.
Hope that helps,
Enjoy!!
John
P.S. If you did have the 2x6's either with the 2" side against the side of the cab or the end grain against the sides with the 6" side facing up I would DEFINETLY run legs down to the floor. Only one more way left and that would be you screwed into the end grain with the 2" side up, this should be fine since these are 2x6's and your talking about less then 100 lbs, but I wouldn't get in a habit of doing it.
Pasqualz:
It just ocurred to me to make you all aware of what i learned when building my cabinet. My friend is a woodworker, so we built the majority of the cabinet in his workshop. When It came time to screw pieces together, my friend said that everything should be "Glued & Screwed." When you put a thin coating of wood glue between the pieces, then screw them, the glue bonds the wood so well that you could actuually remove the screws and teh cabinet would be completely solid (don't try this, keep teh screws there for extra support!)
Now, my cabinet was made with 5/8" plywood and 2x2 strips for extra support at all corners, but I'm sure that wood glue bonds MDF just as well. The only thing is that given MDF has a layered structure, you could still have a situation where the surface areas that are glued together, stay together, but the pieces fail farther inside the pieces and de-laminate. Still, if you want your cabinet to not have a single bit of swivel in it, USE WOOD GLUE!!!!!