| |
Main
Date: 21 Oct 2006 22:27:51
From:
Subject: Plywood tenon?
|
Can I use a piece of 1/4" plywood as a tenon for joints in solid wood?
Or will the fact that the plywood doesn't expand/contract like solid
wood cause the joint to crack?
TIA,
Phil
|
|
| |
Date: 22 Oct 2006 13:15:16
From: B A R R Y
Subject: Re: Plywood tenon?
|
On 21 2006 22:27:51 -0700, cgallery@gmail.com wrote:
>Can I use a piece of 1/4" plywood as a tenon for joints in solid wood?
Yes, and it makes good "splines" too. A spline is kind of a long,
shallow tenon inserted into grooves on both sides.
>Or will the fact that the plywood doesn't expand/contract like solid
>wood cause the joint to crack?
Most woods don't move enough to make that an issue in the case of a
typical 1-2" long tenon.
Don't forget when making your mortises that 1/4" plywood isn't really
1/4" thick!
|
| |
Date: 22 Oct 2006 02:16:04
From: charlie b
Subject: Re: Plywood tenon?
|
cgallery@gmail.com wrote:
>
> Can I use a piece of 1/4" plywood as a tenon for joints in solid wood?
yes
> Or will the fact that the plywood doesn't expand/contract like solid
> wood cause the joint to crack?
no
> TIA,
> Phil
charlie b
|
| |
Date: 23 Oct 2006 02:12:57
From: Charley
Subject: Re: Plywood tenon?
|
Plywood will work OK as a loose tenon, but you will have an even stronger
joint if you use a solid piece of wood with it's grain oriented across the
joint. You can't achieve this with plywood
--
Charley
<cgallery@gmail.com > wrote in message
news:1161494871.473163.25080@h48g2000cwc.googlegroups.com...
> Can I use a piece of 1/4" plywood as a tenon for joints in solid wood?
> Or will the fact that the plywood doesn't expand/contract like solid
> wood cause the joint to crack?
>
> TIA,
> Phil
>
|
| | |
Date: 23 Oct 2006 07:10:34
From: J T
Subject: Re: Plywood tenon?
|
Mon, 23, 2006, 2:12am (EDT+4) clent@carolina.rr.com (Charley) doth
stateth:
Plywood will work OK as a loose tenon, but you will have an even
stronger joint if you use a solid piece of wood with it's grain oriented
across the joint. You can't achieve this with plywood
You've lost me on that one. How about explaining just whatcha
mean?
JOAT
It's not hard, if you get your mind right.
- Granny Weatherwax
|
| | | |
Date: 23 Oct 2006 10:03:08
From: J. Clarke
Subject: Re: Plywood tenon?
|
"J T" <Jakofalltrades@webtv.net > wrote in message
news:19741-453CA32A-1469@storefull-3332.bay.webtv.net...
> Mon, 23, 2006, 2:12am (EDT+4) clent@carolina.rr.com (Charley) doth
> stateth:
> Plywood will work OK as a loose tenon, but you will have an even
> stronger joint if you use a solid piece of wood with it's grain oriented
> across the joint. You can't achieve this with plywood
>
> You've lost me on that one. How about explaining just whatcha
> mean?
Solid wood has all the grain oriented the same direction, plywood has half
of it (more or less) oriented perpendicular to the rest. In a tenon the
major loading is going to be shear across the grain of solid wood--half of
the wood in plywood is oriented in a direction that provides little strength
in that direction.
Further, leaving aside the difficulties of glueing such woods, you can make
a loose tenon out of Ipe or Lignum Vitae and it will be vastly stronger when
loaded in shear across the grain than will birch or douglas fir.
|
| | | | |
Date: 24 Oct 2006 08:56:21
From:
Subject: Re: Plywood tenon?
|
J T wrote:
> Mon, 23, 2006, 10:03am jclarke.usenet@cox.net (J. Clarke) doth
> sayeth:
> Solid wood has all the grain oriented the same direction, plywood has
> half of it (more or less) oriented perpendicular to the rest. <snip>
>
> Yep, already know that. But, I would be thinking that the joint
> would destruct before the strength of the tenon counted, especially if
> the tenon is only 1/4"
>
Huh?
Isn't it the tenon that holds the joint together?
Otherwise, why use a tenon?
--
FF
|
| | | | | |
Date: 25 Oct 2006 15:23:23
From: J T
Subject: Re: Plywood tenon?
|
Tue, 24, 2006, 8:56am (EDT-3) fredfighter@spamcop.net doth query:
Huh?
Isn't it the tenon that holds the joint together?
Otherwise, why use a tenon?
Durned if I know, anymore I'm just confused by ll it all. I think
I'll just stick with dowels.
JOAT
It's not hard, if you get your mind right.
- Granny Weatherwax
|
| | | | | | |
Date: 26 Oct 2006 23:59:53
From: Paul D
Subject: Re: Plywood tenon?
|
Stick with dowels ..... small round loose tennons
"J T" <Jakofalltrades@webtv.net > wrote in message
news:5061-453FB9AB-13@storefull-3336.bay.webtv.net...
> Tue, 24, 2006, 8:56am (EDT-3) fredfighter@spamcop.net doth query:
> Huh?
> Isn't it the tenon that holds the joint together?
> Otherwise, why use a tenon?
>
> Durned if I know, anymore I'm just confused by ll it all. I think
> I'll just stick with dowels.
>
>
>
> JOAT
> It's not hard, if you get your mind right.
> - Granny Weatherwax
>
|
| | | | | | | |
Date: 26 Oct 2006 10:39:58
From: J T
Subject: Re: Plywood tenon?
|
Thu, 26, 2006, 11:59pm (EDT+14) JustMe@Somewhere.net (Paul=A0D) doth
sayeth:
Stick with dowels ..... small round loose tennons
Not loose the way I use 'em.
JOAT
It's not hard, if you get your mind right.
- Granny Weatherwax
|
| | | | | | | | |
Date: 29 Oct 2006 21:09:55
From: Paul D
Subject: Re: Plywood tenon?
|
THe term 'loose' was used loosley
"J T" <Jakofalltrades@webtv.net > wrote in message
news:8887-4540C8BE-81@storefull-3335.bay.webtv.net...
Thu, 26, 2006, 11:59pm (EDT+14) JustMe@Somewhere.net (Paul D) doth
sayeth:
Stick with dowels ..... small round loose tennons
Not loose the way I use 'em.
JOAT
It's not hard, if you get your mind right.
- Granny Weatherwax
|
| | | | |
Date: 24 Oct 2006 09:07:54
From: J T
Subject: Re: Plywood tenon?
|
Mon, 23, 2006, 10:03am jclarke.usenet@cox.net (J.=A0Clarke) doth
sayeth:
Solid wood has all the grain oriented the same direction, plywood has
half of it (more or less) oriented perpendicular to the rest. <snip >
Yep, already know that. But, I would be thinking that the joint
would destruct before the strength of the tenon counted, especially if
the tenon is only 1/4"
JOAT
It's not hard, if you get your mind right.
- Granny Weatherwax
|
| |
Date: 23 Oct 2006 06:14:02
From: Andy Dingley
Subject: Re: Plywood tenon?
|
cgallery@gmail.com wrote:
> Can I use a piece of 1/4" plywood as a tenon for joints in solid wood?
Yes. If you're working at 1/4" or thinner, then the best way to make an
accurate tenon this thin might well be to use ready-thicknessed
plywood.
I wouldn't recommend it for big carpentry, but it's a fair compromise
technique for thin splines.
|
|
