Thread: Finger joints
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dadiOH[_3_] dadiOH[_3_] is offline
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Default Finger joints

wrote:
Why better?


When you said "finger joint", I was thinking of this type...
http://en.wikipedia.org/wiki/Finger_joint

Then I started to think you meant this type...
http://www.woodcraft.com/Product/200...-80060611.aspx

If you meant the first type, a scarf would be stronger length-wise against
bow, just as good or better cross-wise, very unlikely to open due to
seasonal/humidity reasons and consequently fewer potential areas for water
to enter and start rot.

If you meant the second type, I guess it would be OK. So would one or more
biscuits.


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On Thu, 24 Sep 2009 07:16:43 -0400, "dadiOH"
wrote:

wrote:
I'd like to join 5/4 boards end to end and am wondering about making
finger joints. There are many router bits available and I'd like
some input of their use. How easy is it to get the board surfaces
to be in the same plane? Lots of adjusting and shimming or does it
just happen? Can it be done with a hand held router? (I've got a
router table but I'll be working with lengths of 8 feet or so which
may be difficult to handle on a router table. (The end result will
be painted, so some blemishes are acceptable)

For the curious, I'm replacing some of the trim boards on my house
that have rotted at the end(s) because no caulk was applied when
installed 15 years ago and I figure it will be cheaper to cut off
the rot and splice a new section than to replace the entire board.
5/4 stock is not cheap! Of course, a scarf joint is a possibility
but it seems as if a finger joint may be the way to go.



Scarfs would be easier and much better.