I've got some chest plans (http://tinyurl.com/wzss ) that call for a top made
out of 3/4" plywood. I've got an extra sheet of 5/8" 11 Ply Baltic Birch
lying around that I'd love to use instead. Since the top does not appear to
be weight bearing (see plans), is there any downside to downsizing from 3/4"
The 5/8" Baltic birch is probably stronger than regular 3/4", based on
what I've seen of the two materials. Given the construction shown on the
web site cited, you could build it with 3/4" MDF and it would be fine.
In fact, 1/2" plywood would be strong enough structurally speaking, but
it doesn't offer much in terms of holding the screws for brackets, etc.
if you run them into the plywood or MDF.
Doubtful that you could break 5/8" 11-ply Baltic Birch in this application by
jumping up and down on it, much less by sitting on it. Anybody heavy enough to
break that by sitting on it is gonna break darn near anything he sits on. More
likely IMO that the joinery at the corners would fail from racking stresses,
long before the top would fracture.
Doug Miller (alphageek at milmac dot com)
How come we choose from just two people to run for president and 50 for Miss America?
On Tue, 06 Jan 2004 12:43:56 GMT, firstname.lastname@example.org (Doug Miller)
Couldn't agree with you more Doug. Baltic birch is study and stable
stuff...(with a price tag to match) I think the only concern about
the chest is that it will be about 1/8" shorter...LOL
I've always rooted for Ms. Maine...maybe someday...
Go for it. 5/8" baltic birch is much stronger than 3/4" jummywood.
3/4" is over-sized anyway. You could even use 1/2" - there's a rail
across the front.
Play with the sagulator if you want more
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