Tongue & Groove treated floorboards

[davemar]

I'm looking at building my own shed, and would like T&G floorboards. I can find plenty for sale, but none appear to be treated/tanalised. Does such a thing exist? If not, what's the best way of preserved the floorboards?

I plan on attaching them to a floor-base frame made from treated 2x4 timber. Would I need any membrane below the frame, or between the frame and floorboards?

 

[big-all]

not a good move really the water will sit in the gaps and rot in no time

whats wrong with txg shiplap ??

 

[davemar]

Would shiplap be strong enough for a floor?

 

[big-all]

i may have misunderstood do you mean to clad the walls or the the floor

if its the floor then they will be fine
although i used 18mm ply for the floor and roof at 2ft centers

http://s21.photobucket.com/user/bigall2005/media/e1e47346.pbw.html?sort=3&o=0

 

[davemar]

Yes, I meant the floor.

 

[ladylola]

I recently brough some tanilised matchboarding from my local merchant and it's pretty much off the shelf stuff, 5 inch wide and 3/4 inch thick or thereabouts. Also cheaper than non treated floor boarding, so just use something like that with the chamfer on the underside.

 

[john4703]

A decent timber yard should be able to tanalise any timber. I've had lots done, I paid in advance and got it (often dripping wet) a few days later

 

[davemar]

I can seem to find plenty of places that stock treated matchboard, but they are nearly all in the north. I haven't yet found a timberyard in the south east that seems to stock it. Does anyone know of any?