More for reference purposes to help you troubleshoot intonation problems than anything else, the below measurements mainly apply to Fender and other 25 1/2" scale-length electric guitars.
For more information on neck pocket dimensions, please see our other guides.
Please bear in mind that all measurements can vary, usually only within the thousandths of an inch, but because guitars are made from wood, they will shrink and grow. This is dependant not only on the humidity and heat of the weather, but also on the use of different paints, sanding techniques and finishes.
The critical dimensions are:
SCALE LENGTH: (measured from the nut to the 12th fret x 2): 25 1/2"
FROM NUT to 12TH FRET: 12 3/4"
FROM NUT to HEEL: (not extended fingerboard) approx. 18 7/16"
FROM HEEL to MIDPOINT OF BRIDGE: 7 3/8"
Please remember that it is very difficult to measure to 1/16th (or even 1/8th) accuracy by hand without the correct tools and once again, guitars are made of wood which will naturally contract and expand. If you do your measurements and find that you come up too long or too narrow somewhere along the way, use fine sandpaper to enlargen the offending area. If you find your neck pocket too deep, use a small shim beneath the neck - most guitar manufacturers do!
It should be noted that although we sell guitar parts ourselves (we are a custom guitar workshop), eBay automatically puts what it feels are 'relevant' listings beside these reviews, not necessarily our own.