Buying wood

sigh This will sound stupid.
i need some short planks of wood. Not the massively-sized ones but relatively small-sized planks. This is my first time doing it, so i have NO idea what to do. The wood will be exposed to constant sun and snow (far more snow than sun), so is there a specific type of wood that is best to buy for that kind of climate? What lasts the longest? It will be outside 365 days a year - what type of wood is best for a climate with some rain, some sun, and lots of snow and -30 temperatures.

Regarding Canadian hardware stores. i have been to Canadian Tire hundreds of times but never seen actual wood products there. Do they sell it in the store, or do i have to order it?

i just checked out Home Depot on the net - they have lots of make-it-yourself construction projects, but i didn’t find actual wood products that they sell. (IF possible, i would prefer to buy from Canadian Tire though - only if possible). If anyone has any information about this, would really appreciate it.

Nadia......:)

though i have no answer to most of your questions but i know one thing

the best type of wood is that of walnut tree......which resists all climatic changes........
once we visited Kaghan valley(in northern Pak).....i was speechless to see so many buildings just made of wood .....so beautiful......!!
i asked my father which type of wood it is which doesn't swell in water....(while many hotels etc were just on the river bank).....its colour doesn't fade away in sun n snow has no bad effect on it....?????
he told me it is wood of walnut tree(that istoo common there)

may be its not of any help for u but this is wat i know....:)

Nadia, Home Depo has it. Go to any of the big box stores, select your wood and they will give you 2 or 3 cuts for free. You just pay for dimensions. Regardless of wether your piece wastes an entire board. The people there are very knowledgable and will tell you everything.

You will need to apply a coat of protection on the wood. A product called weather gaurd is what you need. Just brush it on.

You can also try Rona. They too have wood galore , but they charge more. And i think you gotta pay for the cuts.

home depot for wood, kind of wood you can ask the department there, they'll give you the best advice even though i'm thinking oak will be good with a few coats of weather protector.