Right side and underside of tongue-and-groove planking

[turbo100]

Hi,
I am going to cover a garage with råspont which should be untreated but may be glazed in the future.
The boards are smooth on one side and on the other I see stripes or grooves. Which side should be facing the wall and which should be visible from the garage?
It would be unfortunate if it turns out wrong...

 

[Magnus E K]

When painting, the rough (or in this case, grooved) side should face outwards, as the paint adheres much better to it. If it is to be untreated, I'm not sure what is best.

 

[myrstack]

I think the planed side of the råspont absorbs stain very unevenly; in any case, I found it difficult to get an even result, so if I were to do it again, I would always have the grooved side facing out.

 

[KnockOnWood]

One side of the raw tongue and groove will be a visible interior wall in the garage, as I understand it? Then I would have placed the planed side inward. That way, not much dust and debris will collect there. Should the tongue and groove be mounted vertically or horizontally?

 

[InsidersUnited]

1+ planed towards the inside of the room.

 

[andersmc]

Hello,
I am going to clad a garage with råspont that will be untreated but maybe stained in the future.
The boards are smooth on one side and on the other I see stripes or grooves. Which side should be against the wall and which should be visible from the garage?
It would be unfortunate if it turns out wrong..

Råspont is made from low-quality timber, it's never intended to be visible. It never looks particularly "nice". But that doesn't stop one from using it as wall cladding. Sometimes you might want that "raw" look, or, as in a garage, it might not matter too much.

Anyway, since it's not made for wall cladding, there is no right or wrong. You can turn it however you want. I would put the smooth side inward because it's easier to keep clean and you won't risk getting splinters if you accidentally scrape against the wall.

If you just want the walls clad with some wood material, maybe råspont isn't the best option. OSB board is probably both faster and cheaper.

 

[Spikrätaren]

Always keep the core side facing you, which means you will have the grooved surface as the wall. If a planed surface is desired - go for planed tongue and groove. You will never regret installing tongue and groove timber (however, at least 20mm thick) when it comes to fastenings and similar things!
Make sure to have approximately the same moisture content in the timber when you install it as is expected in the space where it will be located. Also, allow for a little movement at the beginning and end.

 

[Workingclasshero]

Just nail the skiten up, what could go wrong! ;-)

 

[turbo100]

Hello and thank you - the grooved side should be out!
The boards have been in the space where they are to be nailed up for a while, so hopefully the moisture is stabilized!