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Best use of a tongue and groove joint

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Forum topic by SSMDad posted 08-26-2011 12:58 AM 2200 views 0 times favorited 24 replies Add to Favorites Watch
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SSMDad

395 posts in 1255 days


08-26-2011 12:58 AM

Topic tags/keywords: joining question

I’m just curious but is there any significant use for tongue and groove joints aside from wood flooring or wainscotting?

I can’t think of another instance where they’d be better than biscuits, dado, or rabetes.

-- Chris ~~Who controls the past controls the future. Who controls the present controls the past."


24 replies so far

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WayneC

12290 posts in 2755 days


#1 posted 08-26-2011 01:01 AM

They are sometimes used in the backs of cabinets…

-- We must guard our enthusiasm as we would our life - James Krenov

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Tim Kindrick

369 posts in 1212 days


#2 posted 08-26-2011 01:14 AM

I used tongue and groove for the bottom of this serving tray because it was only 3/8” thick. Too thin for bisquits, dowels or just edge glueing.

-- I have metal in my neck but wood in my blood!!

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Dennisgrosen

10850 posts in 1773 days


#3 posted 08-26-2011 01:19 AM

either that or a loose spline along the length every time you want to make
a wider board than you have avable
the comerciel factory┬┤s even use a zig-zag gluing to lenghten boards with

Dennis

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Dennisgrosen

10850 posts in 1773 days


#4 posted 08-26-2011 01:20 AM

niice tray Tim :-)

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glue4you

161 posts in 1138 days


#5 posted 08-26-2011 01:29 AM

I like them because they allow for some movement of the wood and are usually quite cheap. If you use biscuits there’s usually glue involved. No movement within that joint. Another advantage is that you don’t have to handle giant sheet good.

From a what’s-best-point-of-view I’d say it’s (veneered) plywood and tons of glue.

Haha … just checked Wikipedia: “For many uses, tongue and groove boards have been rendered obsolete by the introduction of plywood and later composite wood boards …”

Best use I ever put T&G to was for concealing an unneeded door from the back. I turned the whole oversize doorframe into a shoe cabinet for my beloved wife …...... I know I asked for it … No way you could have made that with a sheet of ply, well, you could … but I didn’t want that hurricane emergency style in my living-room. I like it for looks :-)

-- Alex ----- Bavaria in Germany

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TopamaxSurvivor

14754 posts in 2334 days


#6 posted 08-26-2011 01:50 AM

My dad used it for siding on his barn, but that was before plywood was commonly used.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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SSMDad

395 posts in 1255 days


#7 posted 08-26-2011 01:59 AM

Thanks a lot everyone! I really appreciate your responses.

I have been “allowed” a new router bit(s) so was contemplating the t&g and trying to think what I’d possibly use it for but I think I’ll go with a rail and style pair so I have it when I make some cabinets.

You guys are great as always!

BTW: Tim that’s a beautiful tray. What’s the wood?

-- Chris ~~Who controls the past controls the future. Who controls the present controls the past."

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Tim Kindrick

369 posts in 1212 days


#8 posted 08-26-2011 02:03 AM

Thanks Dennis and Chris!!! I have it listed in my projects as “Spalted Pecan Serving Tray”. I need to add better pics, like this one, to that project page but haven’t got around to it. Thanks again!!!

-- I have metal in my neck but wood in my blood!!

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Tim Kindrick

369 posts in 1212 days


#9 posted 08-26-2011 02:08 AM

Chris, save yourself some money and don’t buy a T&G set. It’s not really needed unless you’re doing production work like flooring. You can do T&G with a straight bit very easily. Spend that money on a good rail and style set instead!!!

-- I have metal in my neck but wood in my blood!!

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fussy

980 posts in 1708 days


#10 posted 08-26-2011 07:27 AM

Chris,

I occasionaly make lazy susans (when I have a gift that needs to be special) and I use t&g joints to join the 4 pieces of the bottom because they make glueing 4 pie-shaped wedges so easy I don’t have to use clamps. Done well, they make an interesting feature on the edge. Tim’s right. Use a straight bit and save money. Stunning tray, Tim.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

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DamnYankee

3235 posts in 1220 days


#11 posted 08-26-2011 07:36 AM

I don’t have a biscuit joiner but I do have a straight bit, so when others might use a biscuit I use T&G.

-- Shameless - Winner of two Stumpy Nubs Awards

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fussy

980 posts in 1708 days


#12 posted 08-26-2011 08:04 AM

One other thing, a well made t&g joint will perfectly align the faces, and add a lot of extra glue area. They’re a little fiddly to set up, but when right, you can do them all day long and they make things so much simpler.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

View glue4you's profile

glue4you

161 posts in 1138 days


#13 posted 08-26-2011 11:47 AM

Steve – Good idea as a present. Do you use any hardware for the rotating mechanism? Marbles? Dowel in hole?

I don’t understand what you would need any pie-shaped wedges with T&G for … any photos?

-- Alex ----- Bavaria in Germany

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jeth

210 posts in 1496 days


#14 posted 08-26-2011 05:53 PM

Not my favourite topic at the moment as I have been replacing rotten tongue & groove floorboards all week. Great idea when you’re laying a new floor, not so great to pull out and replace individual boards, grrr.

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Bertha

12951 posts in 1351 days


#15 posted 08-26-2011 06:03 PM

I like tongue and groove because you can execute them with cool tongue and groove planes. :)

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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