Best no rotting timber

[Exfarmer]

as per title , I want some timber which will not rot does not have to be anything special as It is to sit under a green house frame on a stub wall to get levels right. Any ideas? Cost is not an issue a few years ago would have got some tantalised but my experience lately is not good

 

[Cowmansam]

Railway sleepers

 

[Exfarmer]

Railway sleepers

sadly no good for this job, her ladyship would not allow sleepers on her patio

 

[Cowmansam]

I’d use stone blocks then not going to rot

 

[Y Fan Wen]

Concrete cast in situ? That's what I used under the shower after the timber frame it sat on collapsed. No, I was not responsible for the timber.
Sawn oak is another suggestion.

 

[Exfarmer]

I’d use stone blocks then not going to rot

That was my first idea, but we are using an existing stub wall and placing on top . I have to get a piece of timber 60mm thick to fit . Thankfully being 2 foot off the ground it should not be too problematic

 

[Cowmansam]

You can get a red wood with a very tight grain no idea what it’s called but barely rots we made sheds out of it 20 odd years ago and still as good now it’s some tropical wood I would guess

 

[Guleesh]

larch

 

[Cowmansam]

Or oak or chestnut as above about the best for not rotting

 

[robo]

You can get a red wood with a very tight grain no idea what it’s called but barely rots we made sheds out of it 20 odd years ago and still as good now it’s some tropical wood I would guess
[Keruing .hard as iron lasts for ages quite pricey . same timber as used for permanent electric fence . a good timber merchant is needed

 

[i dont belief it]

Accoya wood 50 year life if cost is not an issue.
Might cost more than the greenhouse.

 

[Exfarmer]

Accoya wood 50 year life if cost is not an issue.
Might cost more than the greenhouse.

yes I did some googling before I start and had a little surprise just need need some 110X 60 some were talking hundreds of pounds a meter

 

[i dont belief it]

But its for her ladyship.

 

[Courier]

In situ mortar/concrete with a Accoya wood veneer ?

 

[SilliamWhale]

Plastic?

Larch covered in waste oil?

 

[Exfarmer]

Plastic?

Larch covered in waste oil?

looked at plastic , but it will move too much I was shocked how much when a guy quoted me. It is exposed to thew sun and black plastic would probably easily get to 40C

 

[michael N123]

All my new fence posts and rails are larch now

 

[Doing it for the kids]

Can you not use bricks?

 

[Steve welder]

Iroco

 

[Lincs Lass]

Greenheart is hard as ,,water board use to use it for pilling cannel banks ,,its the same stuff used for sea breakers on the coast