At the end of the 50's Gibson invented the ES-335. They combined the best of a hollow body with the best of a solid body..
The guitar is thinner than a hollow body and they have a solid peace of wood through the center of the guitar. From the neck till the end of the body, the guitar is solid, but the wings are hollow.
The guitar has the sustain and brightness of a solid body and the resonance of a hollow body.
solid electric guitar body
The solid electric guitar body is the most populair body for electric guitars. It is made from a solid peace of wood. It can be made from one peace of wood, or from more peaces of wood, glued together.
A solid body can be made of one single kind of wood. It also can be made of different kinds of wood, like the Gibson Les Paul with the combination of maple and mahogany.
Tone wise the guitar made from one single solid peace of wood will have the purest vibrations and resonance. By mixing more kinds of wood it is possible to blend different tonal characters.
A body that is made of different peaces of the same wood, glued together, will be stronger.
There can be different neck constructions on a body.