Model Details
​My instruments are designed and built where long sustain, volume, and full rounded tonal response are desired.  

A more melodic and controlled style of playing, lending themselves well to finger style, jazz, and strumming styles.

Four distinct body shapes were designed to maximize the efficiency of the models soundboard surface area, internal air volume, matched with "tuned" sound hole/s and side port/s for optimized tone, volume and wonderful playability.

Each models neck joins the body at a different fret location, for the purpose of playability for the players needs and a variation in tonal palette.

The bridge on each model is located in the "sweet spot" of the lower for each model, for maximum tonal generation.

The model examples below intentionally do not show the sound hole shapes, or locations, as that will also affect the tonal perception of each instrument. This would best be discussed together.

These models typically utilize my proprietary Hybrid Kasha tone bar system and has extended bass response, a larger range of tonal frequency, and superb sustain.

Each body shape is available, sized proportionally, from a tenor ukulele model, mandolin models, up to guitar models.

Guitar models are available as nylon or steel string versions.

All models are available in a wide selection of materials, sound holes/side ports configurations, pickups, and treatments.

As a luthier of bespoke instruments, my goal is to create one-of-a-kind instruments focused tonally for my patrons individual tastes and playing considerations. I look forward to speaking with you about which model would best suit your auditory perception and style of playing.

16th fret models

The 16 is the more full bodied modern instrument, with a neck-to-body join at the 16th fret. Ideal for that player that rules the whole neck, looking for that fuller tone range, without the need of a cutaway.

Longer neck length to play before the body joint at the 16th fret, without a cutaway. 20 frets on the fretboard.

Neo 15/16 Models

The Neo model is a contemporary shape with a higher waist, with the neck joining the body at either the 15th or 16th fret,

​14 fret models

The 14 is a contemporary body shape, with a neck-to-body join at the 14th fret.


FB11 Models

My FB series of instruments were inspired by the shape of the original six string guitar by Gio Battista Fabricatore, of Naples Italy. My intention is not to create reproductions of the instrument, but to combine a tribute to the historic shape of the Fabricatore instruments with my contemporary approach to what happens inside and outside the box.

The neck typically joins the body at the 11th fret. 

If you've got questions, or want to discuss for your dream instrument, contact me. 

Copyright © 2019 Mark Roberts Guitars & Ukuleles.  All intellectual property rights reserved.  Phone 503.453.7441​   connect