hi guys,
i am currently doing some building projects and i would like to know if its possible to make a seven string guitar out of a six string. Which changes would have to be made and do you really need to use a seven string neck?
thanks in advance
you must have a seven string neck
you can play with the tunings
just tune the guitar like a seven string guitar and give up the E string
You would need to replace the neck for a fatter one. Doing this, you have to rout a larger neck pocket cavity. If you have a neck through or set neck, then you're out of luck.

You will also need a new bridge to accommodate another string. Adding a new bridge will then make your guitar ridden with holes, so you might want to repaint it.

It's possible, of course, but honestly it's not worth the time, money and risk of ruining your guitar.

EDIT: Oops, forgot to mention that you would need to rout bigger pickup cavities for seven string pickups as well.
Last edited by guitaristren at May 19, 2011,
It is technically possible, like most things, but realistically it is really pointless, like others have said, new neck, route new neck pockets, new bridge which will involve new routing, neck pickups which will involve new routs and electronics work.

In short if your doing this to a really crappy guitar your putting in WAY more money into it than the guitar is even worth not to mention a lot of hours, and if your doing this to a nice guitar you will be risking the guitar, messing with a lot of what makes it good in the first place, and also putting in a lot of hours.

In short, put a seven string gauge on and tune BEADGB (this will involve a set up) or buy a seven string.