We seem to be chasing our tail here ... If you say so.
There is not enough detail in the picture to tell the grain direction on
what are generally the tables "aprons" upon which the table top rests. What
appears to be an "apron" in the photo may indeed be a solid piece of wood
spanning the structure under the table top. (Indeed, I hope that is the case
if you are planning on glue as your method of table top fastening.)
The problem with giving any satisfactory advice, besides inadequate detail
in the photos and confusing descriptions, is that your table appears to not
use generally accepted table construction methods.
There is absolutely nothing wrong with that. However, had you used more
conventional, and time tested, table construction methods, there would be no
question about what would work and what wouldn't ... but I am sure that you
are aware of that.
At this point, it you feel you have the wood movement issue whipped, just do
what you think will work based on your research ... and time will be the
In any event, good luck in finishing your project ... I do like the look of
the piece and hope it works out for you.
I think I have figured out the communications problem. No matter how many
times I say that the side panel is solid butternut with the grain running
the same direction as the top, people see it as a crossgrain problem because
aprons normally have grain running the opposite direction.
Bookcases always have side with vertical grain, and that is how I built
this; rather than like a table.
It may be unconventional, but if it works for bookcases, why wouldn't it
work for this? The front has some cross grain to the sides, but since since
nothing is wider than 1", that can't matter; and the back will be plywood.
I will post a picture of it when I am done.
Nope ... didn't even worry about that in my replies. My points, IIRC, were
limited to supporting the shelf, any cross-grain situation at that point
considering the wide shelf, and attaching the top.
I've learned not to predict how things will actually get used. Well built,
furniture lasts for many decades. Unless it is too ugly to bear looking
at, it will be passed around to family, friends, neighbors, folks who pick
stuff up on the curb on trash day, etc.
Build it to last, or you might as well go to Ikea.
Sorry for the rant. I feel better now. Didn't mean to rain on your
parade, either. Folks have been pretty helpful in trying to explain &
understand what you're trying to do here. That isn't the easiest thing to
do in a text group. And it's how understanding is passed on. That's a
very good thing.
you're right about the relative movement in this piece. where the
shelf sits on it's supports is the only significant long grain to end
grain joint. it's easily dealt with by loosely fastening the shelf
down and providing room at the legs for movement.
it's not how I'd build the piece, but it should work.
Yes, that is the famous support that I was asking about at the very
beginning of the thread. It is a cross grain walnut support I put in after
deciding the parallel grain butternut support was inadequate.
Someone pointed out correctly that I was confused and even at 12", a
crossgrain support was not safe. So I backed out the screws attaching it,
to accomodate a little movement.
Then the thread started getting bizarre.
It is the only crossgrain element in the entire table. According to my
charts, the movement between the butternut shelf and the walnut support will
be no more than 1/16" over 12". So slightly loose screws ought to be enough
to handle that. Or so I believe.
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