back brace dimensions? - 00-12

[Daniel P]

I'm getting ready to do the back bracing on my 00-12, and while I found ample inspiration and reference material for the top bracing, I'm not finding much on back bracing dimensions - height and width.

Ken's template gives solid measurements for the back bracing placement.

Do any of you have thoughts, recommended dimensions or historical back brace measurements from early Martin 00-12s?

thanks all
Daniel

[Tim Benware]

Ken's template gives solid measurements for the back bracing placement.

How about the above:)

[ken cierp]

Martin used/uses the wider flatter 3/8" high x 3/4" material for the two longer braces. I've seen so many Martin guitars where the back flattens out over time that I have gone to the taller configuration. Which seems to be more stable for the long haul. Most/many modern makers agree with the later practice. The placement I show is off a Martin -- but that can vary a bit and for sure would have "zero" impact on sound quality.