Originally Posted by
Tibernius
It's 12.75" from the nut to the 12th, but 13.25" from the 12th to the saddles.
BTW, it's a 22fret neck without an overhang.
To get the 25.5" scale length, you could also measure from the nut to the high E string saddle and adjust the saddle to 25.5". However, if it's not possible to do that, it pretty much leaves you with few options.
The only option you have really is to re-route the neck pocket to accommodate the extra fret, but I wouldn't undertake that task. You don't want to cut the neck either....then you really have to make sure the neck fits in the pocket properly.
It's the neck pocket that is really keeping you from getting the proper length. Maybe sell the neck you have and get one with either an overhang or one less fret.
Guitars: 2003 and 2004 American series strats, Squier Classic Vibe 50's Strat, Squier Deluxe Strat.
Amps: Line 6 Spider IV 120, Vox AD50VT 212, and Peavey Transtube Bandit 112.
Pedals: Digitech Bad Monkey.