Can you buy treated 150mm x 150mm timber

longwalks1

I’m looking to make a couple of chunky wooden garden chairs and would ideally like to use 4 pieces of 150 x 150 timer stacked on top of one another for the arms.  Where can you buy 150mm x 150mm (6” x 6”) treated timber?  Or what alternative do I have? 

stuart45

You can get 6x6 fence posts.

daveyjp

Local timber merchant is the obvious first place to enquire of.

greyteam1959

6x6 is more like a gate post size than a fence post size.
Local agricultural merchants if you have one.

Robin9

My word they are going to be very heavy - do you really mean 150 x 150  or perhaps something like 100 (4 inch) wide and 50 (2 inch) deep ?

longwalks1

Thanks all, I'm not 100% confirmed on the 6" x 6", but it needs to be 'chunkier' than 4x2" I think.   I noticed Wickes do jumbo sleepers that are 125mm x 250mm so 2 stacked on top of one another would suffice, giving an arm rest height of 500mm.
Thanks everyone

greyteam1959

If they really are railway sleepers don't use them for something like this.
They stink when they get warm !!

longwalks1

greyteam1959 said:

If they really are railway sleepers don't use them for something like this.
They stink when they get warm !!

Ahhh I had no idea Greyteam1959 - Thanks for the heads up! Back to the drawing board

longwalks1

stuart45 said:

You can get 6x6 fence posts.

Stuart ive found 6x6 gate posts locally, 2.4m for £28 each, any idea if they will smell when warm like sleepers?  (random question i know)

stuart45

The original railway sleepers were soaked in creosote. Modern gate posts are treated differently, so as long as they are outside will probably be OK. I've got some holding a 5 bar gate, but have never really noticed anything. 

greyteam1959

They will have a slight smell as they are probably treated with Tanalith.
The smell will fade over a few weeks unlike railway sleepers.
https://www.tanalisedtimber.co.uk/