How would Cypress Pine be for exterior shed walls?

**FenceFurniture** · 25th September 2014, 09:17 PM

I'm thinking about extending my shed a couple of metres or so out to the back.

I have access to a site that is being gutted and they have cut out the floor into 4x4' and 6x3' sections for dumping. I can take whatever i want. It's currently Tongue and Groove of course so that wouldn't work too well for expansion, and would need re-profiling (although should be fine as T&G for the internal walls I would think - if it's ok for a floor then should be ok for a wall).

The upper face has got some gluey snotty stuff on it - I presume they glued the carpet down - but that could face into the cavity after I paint scraper it off. I noticed in the rain today that it had gone soft so I could hose it down and then scrape.

So, the question is - how suitable would Cypress be for the exterior walls?

My preference would not be to paint the outside but to use an oil or lacquer that is suitable for exterior.
They are 100mm wide boards, probably 19-24mm thick (i'll have to check).

Also: what would be an appropriate profile to allow for expansion and contraction?

**crowie** · 25th September 2014, 09:53 PM

A mate of mine had recycled cypress pine as garden edging in West Wylong, it was a common practices according to him....

This website suggested it's good for exterior cladding
http://www.cypresssupplies.com.au/cy...1b5bffc56824c0

**Simplicity** · 25th September 2014, 09:53 PM

Hi Brett
Cypress pine is used quite lot in fence posts decks extra buried for posts.
So I can't see an issue as an outside wall surface
Will u be painting/oiling it
I know I only leave small replies but hope this helps
Matt

**FenceFurniture** · 25th September 2014, 10:02 PM

Thanks chaps. It seems like an excellent wood for my purposes. There's *rather a lot* there so I might have to hire a van (and find somewhere to store it

)

**Simplicity** · 25th September 2014, 10:23 PM

Sorry Brett
I didn't take it all in first time
If there 100 mm wide you could over lab them by 20/25 mm like weather boards.
You say there's heaps so why not.

**Sturdee** · 25th September 2014, 10:42 PM

Originally Posted by Simplicity

Hi Brett
Cypress pine is used quite lot in fence posts decks extra buried for posts.
So I can't see an issue as an outside wall surface

+ 1.

That's where I get a lot of my of box turning timber from, being the top of the fence posts.

Peter.

**springwater** · 25th September 2014, 11:03 PM

Originally Posted by FenceFurniture

Also: what would be an appropriate profile to allow for expansion and contraction?

Shiplap I reckon. It does tend to split when nailed so you may need to drill beforehand.

**Uncle Al** · 25th September 2014, 11:11 PM

Cypress Pine was used in weatherboard homes built in the late 40's and into the 50's. My Dad's house was weatherboard on the bottom 4 feet or so then fibro up to the eaves. Another common profile was shaped a bit like a letter 'B' and was usually used to clad the whole wall. In the early 70's, we had to replace some of the hardwood studs and bottom plates that had been tucker for some white ants, which required the removal of the unaffected Cypress Pine which was replaced with fibro due to the mechanical damage suffered when removing the weatherboards.
Your extension should like pretty good using these boards, and will last a very long time if well painted etc. The extra room gained I am sure will be put to good use!

Alan...

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