T&g ?

[Feeby100]

Could I use this for deck head and above gunwals? 
it says moisture resistant? 
 

[Sir Percy]

Is it wood, or MDF?

 

I'm installing softwood TGV cladding. It'll get paint/stain, and oil/wax both sides.

[ditchcrawler]

I can't see what it is https://www.easipanel.co.uk/

[David Mack]

13 minutes ago, ditchcrawler said:

I can't see what it is https://www.easipanel.co.uk/

 

Bottom of the page:

 

"EASipanel is FSC® certified and manufactured from moisture resistant MDF."

[The Welsh Cruiser]

B&Q do a very cheap timber cladding. I've used it to good effect for cupboard door infills. It's very thin though, not sure how long it would last outside. 

[David Mack]

I've been wondering about using beaded mdf like that easipanel as hull lining. On the one hand it might quickly swell to little more than clumped sawdust, but on the other it's a hell of a lot easier to fit than thin pine t&g where the individual boards shrink and swell with the seasons, with the attendant risk of twisting and splitting.

[Feeby100]

It is mdf 

can I get panels in t&g in ply I don’t think so only mdf 

[ditchcrawler]

I used a waterproof MDF, I can't remember the exact specification as I bought it over 20 years ago but I can say its a lot more stable that ply or real wood. The down side its almost impossible to make a good fixing to. 

[David Mack]

8 minutes ago, Feeby100 said:

It is mdf 

can I get panels in t&g in ply I don’t think so only mdf 

I assume the t&g and bead mouldings are routed into plain mdf sheets. MDF is an ideal material for that as it is takes a good machined finish. Doing the same with ply would lead to all sorts of areas of open or torn grain, so would require much filling and sanding to get a decent paintable surface.