Like the guys said - telecasters (and strats) have a 25 1/2" scale length, measuring from the nut to the 12th fret is 1/2 the scale length. If you center the saddles and place them at the 25 1/2" mark there will be enough travel to intonate them in a standard tele bridge (vintage or modern)
Not laughing here... true story, when I built my first guitar it was also a telecaster. I wasnt using a pickguard (which woud have helped position my bridge) and being 15 yrs old without any help or books, I was unaware that the bridge needed to be placed in a specific spot. I just put it where I thought it looked good, which also happened to be about 1 1/2 inches back too far. WHen I tried to string it up I think I went through 3 high E strings breaking before I realised something may be wrong...
I bought the 1st edition of Melvyn Hiscock's book and quickly reaslised what I did wrong. That was back in the mid 1980's and I still laugh at myself for that!
Good luck and if you havnt already, buying a book on guitar building (there are quite a few out now) is a great idea for learning the basics.
AJC