Choosing Wood For Entrance Double Gate

Hi

I plan to replace old rotten entrance double gates.
I intend to paint them.
The existing gates are solid but I do not know what kind of wood they are made from only that is a light coloured wood (not pine).

Can any one suggest the best wood to use which will weather the best, and what precautions to take to protect against rain and warping.

I have been browsing the internet for framed, ledged and braced door design plans as I am not sure how the tongue and groove panels fit neatly flush with in the frame rails.....but can find nothting as solid as the current gates. The Frame uses mortice and tenon joints with diagonal braces which are inset at an angle into a centre rail.

Any advice would be appreciated, book names etc

Thanks in advance

as they will be out in the weather, I would not go for paint, but a breathing stain.

if you like a rustic look, the "shed and fence" stains are cheap and very very easy to apply. you do not have to burn or sand off when you apply another coat. they leave a waxy water repellent film

I also use a wood preserver (diferent kind of thing) on the timber and let it dry well before staining. preferably applied before assembly, but re-do any cut or drilled surfaces.

water will get into any joints, cracks or knots and start rot if it can.

Thanks for the reply JohnB
Any answer to my other questions?

Hi
I came across this great online wood choice application :

http://www.woodbin.com/calcs/wdpick.htm

Has anyone any links to information regarding "Double Gate" construction / design / tips etc?

Any help would be appreciated