Cedar, Ipe etc.
PT will work - I have used it -- don't don't like the chemicals. People
do stain it. I think you can get green and maybe there is a non-green PT
wood here. Local building supply usually has answers...
Not Fir unless treated...
Call Century wood, A&M wood or similar and ask for a recommendation.
Look here for a couple of wood suppliers...
PT wood is used primarily to deter termites. Wood in contact with the
ground should be PT. Above ground you can go with non-PT. Fir isn't
going to last long when exposed to the elements. Redwood would be be
better, but that might be an option for you. How about cedar instead?
That's the usual wood when redwood is not available or too expensive in
Keep in mind that Canadian pressure trested wood is not like that found in
Can. pressure treated wood is usually spruce, which does not pressure treat
properly, and usually of poor quality. It also rots fairly quickly.
Your best bet is western red cedar, usually available at good Ontario lumber
Maybe use red cedar? It has natural camphor (?) content.
Or use another wood that stands the elemsnts (usually hardwoods), but
use stirrups to stand the columns up from the ground. SOP over here in
West Oz, where TermiteZ RULE man! <G>
PT tends to be evil stuff. It will exude poison to people touching it,
and I am concerned about the long-term effects of getting rid of
quantities of something that has a 50 year _guarantee_ against rotting!
Nice idea, but the usual eco-problems.
Several of your fellow Canadians have recommended quality local suppliers.
Go have a chat with them about local requirements, practices and products.
What David does in California works here, and the Aussies know Oz, but you
need an experienced Canadian supplier.
Bugs, chemicals and laws differ greatly around the world.
Good luck with your project. Take pictures to share.
I whole heartedly agree that PT should not be used where anyone would
come in contact with it. Splinters can be quite nasty due to the
chemicals. don't use in a children's playground area.
Old Nick wrote:
Could be just me, but when I build structures, I only just PT wood for
sill plates- not the whole thing. If someone is spending enough time
laying on the ground touching the piece of timber *under* the framed
structure, they've probably already got more problems than poison from
PT lumber is likely to cause. On the other hand, your naturally
decay-resistant woods are likely to look better, and if it makes you
happy, go for that option. As far as I know, Cedar, Redwood, Mahogany
and Teak top that list.
Stain won't protect wood from insect damage. You could use cedar,
redwood, teak, cypress, possibly white oak. Pressure treated wood is
often saturated with moisture. When I use PT wood, I will dry it,
stickered and clamped, for several weeks. As it dries, it tends to
wane, twist, and bow. Wet wood does not stain nor take finish well.
Douglas fir is not a good choice.
And "saturated" is the correct word in spades. That stuff is *wet*. I'm
surprised it doesn't drip when you make a fresh cut.
Built a deck out of the new PT lumber coupla years back. What an utter pain
in the ass it was to work with and on, and hardly worth the trouble to make
it look decent. Though after about a year of exposure, it stained up okay
with a cedar-tone stain from Pittsburgh Paints. Still, next time I build a
deck, I'm going with something - anything - else.
I picked up some ipe stock last week and caught myself thinking a deck made
of ipe 2x2s would look pretty cool. That said, next time I might go with
cedar or cypress due to cost, unless some other alternative (cumaru?) is
available more cheaply.
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