If I need to join two pieces of wood to make the overall length of a
pergola longer than each individual piece of wood , would a half lap
join be the correct method ?

If so how do i stop water getting in between the joints ?

In addition would coach bolts be a recommended method to ensure the
horizontal pieces did not move from the vertical posts?

Thanks
Andrew

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On Fri, 01 Apr 2005 19:00:44 +0100, Andrew Welham
wrote:


If I need to join two pieces of wood to make the overall length of a
pergola longer than each individual piece of wood , would a half lap
join be the correct method ?

If so how do i stop water getting in between the joints ?

In addition would coach bolts be a recommended method to ensure the
horizontal pieces did not move from the vertical posts?

Thanks
Andrew

This joint will not be as strong as unjoined single bit. I buy floor
joists for this type of activity, most builders merchants deliver.

Rick

"Rick" wrote in message
...
On Fri, 01 Apr 2005 19:00:44 +0100, Andrew Welham
wrote:


If I need to join two pieces of wood to make the overall length of a
pergola longer than each individual piece of wood , would a half lap
join be the correct method ?

If so how do i stop water getting in between the joints ?

In addition would coach bolts be a recommended method to ensure the
horizontal pieces did not move from the vertical posts?

If you have to join two beams, try this method:-

Cut horizontally along the centre of one of the beam ends, for about a foot.
Now cut down from the top of that beam at an angle of 45 degrees until
you intercept your initial lengthwise cut - make sure you cut at the correct
sort of 45 degrees, i.e. so you end up with an internal angle of wood.
Slice the , oh stuff it, I'll try some ascii art, it never works but here
goes.

---------------------/
/
/-------------------/
/
-----------------------------------/

Cut one beam as shown, ( side view shown ) then the other to fit this
exactly.
Make the cuts at 45 degrees, the angles shown above are all I can get with
ascii art.
You could stick a couple of long screws through the joins, along with
waterproof
exterior glue to add stregth.

Andy.

andrewpreece wrote:

Slice the , oh stuff it, I'll try some ascii art, it never works but here
goes.

---------------------/
/
/-------------------/
/
-----------------------------------/


Hmm, let me fix that for you
(monospaced font and no tabs is the trick) ;-)

-------------------/
/
/-------------------/
/
-----------------------------------/

AKA a scarf joint... another version (cuts would be smooth and not
stepped in real life!)
A B
// //
------------------- -----------------------------
/ /___
---___ ---___
---___ ---
/ /
-----------------------------/ /------------------
// //
// //
// //
A B

Bolts right through at A and B (countersink the heads flush if you
want), waterproof wood glue in the joint first.



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

In article , "Jeff"
says...

"John Rumm" wrote in message
...
andrewpreece wrote:

Slice the , oh stuff it, I'll try some ascii art, it never works but
here
goes.

---------------------/
/
/-------------------/
/
-----------------------------------/


Hmm, let me fix that for you
(monospaced font and no tabs is the trick) ;-)

--------------------/
/
/-------------------/
/
-----------------------------------/


surely it should be like this :- (if it works)

--------------------/
/
/-----------------/
/
------------------------------/


No, definitely like this:

--------------------/
/
/-----------------/
/
----------------------------------/

You did understand the bit about using a fixed-width font, didn't
you?

"Jeff" wrote in message
.. .

"Rob Morley" wrote in message
t...
In article , "Jeff"
says...

"John Rumm" wrote in message
...
andrewpreece wrote:

Slice the , oh stuff it, I'll try some ascii art, it never works
but
here
goes.

---------------------/
/
/-------------------/
/
-----------------------------------/


Hmm, let me fix that for you
(monospaced font and no tabs is the trick) ;-)

--------------------/
/
/-------------------/
/
-----------------------------------/


surely it should be like this :- (if it works)

--------------------/
/
/-----------------/
/
------------------------------/


No, definitely like this:

--------------------/
/
/-----------------/
/
----------------------------------/

You did understand the bit about using a fixed-width font, didn't
you?

am I seeing something different to everyone else ? it should be 2 x 45
degree cuts shouldn't it ? is this a quirk of different news readers or am
I
missing something ?

Regards Jeff

I'm glad you're seeing it too! Much to my amazement my original ascii art
came out ok,
2 x 45 degree cuts as you say, then everyone else starts to 'correct' it
with all manner
of unsawable or at least impractical diagrams. I have come to the conclusion
that the
original sender of ascii art is unable to see it as others see it - each
newsreader/mail
program interprets it differently!?

Andy

Jeff wrote:

Yup , thats it, just had a play with OE view, text size and using the
different settings you can make them all correct in turn, which means ascii
art is pointless as everyone has different settings / readers

Yes, you are right. However, there _is_ a common standard for ascii art
- it must be rendered with a monospaced font (i.e. non proportional).
You also need to use hard spaces to position items since tabs are not a
fixed size but can be interpreted differently at whim.

Have a look at a posting on google groups:

http://groups-beta.google.com/group/...ecca883967b539
http://tinyurl.com/4cqen

That shows you how most folks will see it.

If you use a proportional font (as OE does by default) then you have the
problem that it will look wrong for anyone else not using the same font
on the same platform - and in some cases you may find that getting the
same representation on another platform is impossible. Whereas just
about every platform has the option display a monospaced font.

If you routinely read news with a proportional font, you can switch to
just about any fixed width one, and get the desired result when a
diagram makes no sense. If however you read with a fixed font but need
the switch to a proportional one to view a diagram, you then have the
problem of which proportional font to choose since they will all make it
look different!


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Jeff wrote:
"John Rumm" wrote in message
...

andrewpreece wrote:


Slice the , oh stuff it, I'll try some ascii art, it never works but

here

goes.

---------------------/
/
/-------------------/
/
-----------------------------------/


Hmm, let me fix that for you
(monospaced font and no tabs is the trick) ;-)

-------------------/
/
/-------------------/
/
-----------------------------------/



surely it should be like this :- (if it works)

--------------------/
/
/-----------------/
/
------------------------------/

btw as said before I would use a floor joist and not have a join

Regards Jeff



Jeff
One part may have forgotten to mention is that the joint would be on
top of a post, to support the weight, I would never dream of making a
joint between posts.

Andrew


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In article ,
"Andrew Welham" says...
snip
One part I may have forgotten to mention is that the joint would be on
top of a post, to support the weight, I would never dream of making a
joint between posts.

In that case a short vertical lap joint with a couple of screws will
suffice.