I agree with O2bhntn....these days, you can buy a good ladder stand at Wal-Mart for about what you would spend on pressure treated lumber to build one. I' ve done it both ways and I can tell you the two-man ladder stand you can get at Wal-Mart for $98 is much lighter, easier to put up, and has plenty of room and is plenty comfortable. Plus...unlike most home-built stands, you can move the ladder stand when you need to becuase its not nailed to the tree. I have two fantastic home-built stands on my property that I spent lots of money and effort on that I dont hunt anymore because of changes in the deer movement patterns over the last 5 years...sure wish I could move those suckers now....
Good luck!
SC