Not always easy to tell from the question whether the poster is using
the correct term to describe the process, which is why I posted what I
did ... when it comes to technical advice, language and terminology are
barriers to both giving competent advice, and the successful execution
Most folks, including many woodworkers, would offhandedly also describe
the end grain of the board as an "edge", particularly if the board is
equal to or wider than it is long.
This would certainly result in a complete different answer to the
question about the strength of any glue up involving either one of both
of the parts being wrongly described with that single term ... and
perhaps a radically different result of acting on the advice than expected.
In this case if the glue joint is indeed joining two edges "long grain
to long grain", which if properly done with modern glues would result in
a joint that is more likely to be stronger than the wood itself, you can
see how important it is to be damn certain that is indeed what is being
IOW, it pays to make damned sure all parties are speaking the same
language before giving advice if you want to put any faith in that
(I recently went through three meeting with a professional kitchen
designer before it was clearly understood that she had a totally
mistaken notion about what a "face frame cabinet" was ... trust me, it
pays to be AR about terminology in woodworking <g>)
Anyone assuming that an individual with a reputation as a _designer to
the stars_ would be versed enough in cabinet terminology to know the
difference would have been bitten in the butt when it comes to
Pays to not assume(.) :)
If anyone else has seen the episode, maybe we can offer opinions on the
strategy used of making a mortise by cutting a dado into the edge of
each of two pieces of wood and then glueing these edges together. Maybe
one can argue that the glue is stronger than the wood, but my intuition
tells me that one is inviting the glue joint to fail.
The glue is stronger than the wood but the joint itself is the weak spot of
the glue up. Stress riser right at the joint.
That would be a rabbet, not a dado.
As for the technique, what were the dimensions of the stock and what was
the size of the resulting mortise? I've done similar on very large
pieces like make a 2" mortise in a large architectural post by gluing up
three laminations and leaving room for the tenon in the glue-up.
Essentially the same idea on a smaller scale.
A well-fitted long-grain glue joint is at least as strong as the wood in
most cases; the tests show that generally the wood will break along its
grain at some point rather than the glue line failing. The possible
failure could be longevity...
For a beginner I'd presume it was seen as an easier expedient than hand
chopping a mortise assuming the viewer doesn't have access to a mortiser...
Could it be this one, making it Episode 507:
Through Mortise & Tenon Projects
Aired 11/9/2011 @ 12:00 PM
Special weekend projects, a Nantucket-style bench and a traditional
wall shelf, are presented.
Episode: 507 Through Mortise & Tenon Projects
Program Length: 26 Minutes 46 Seconds
Educational Recording Rights: One-year rights for teachers to tape.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.