Our newly manufactured and upgraded orange non-conductive fibre board measures 199.9932mm long, 79.1693mm wide and 3mm thick! The two rows of nickel silver plated copper alloy turrets are spaced 63.5000mm apart. Easy to mount this very sturdy board to your chassis with four threaded standoffs (I use .75" tall threaded hex type...) and machine screws. Plans (with lots of my close up photos...} for building the Angela Super-Single Ended Amp and Tweed Princeton 5F2A projects are for sale on the Fretboard Journal website. While you're at it you should also subscribe to FJ and check out the Truth About Vintage Amps podcast with Skip Simmons and Jason Verlinde.