Overview Specs Plan Info General Information: The J-45 made its debut in 1942 and has been a top-seller for Gibson ever sense its introduction. This guitar is commonly known as a "round shouldered dreadnought" and has also be nicknamed "The Workhorse". Many top recording artists have made this one of their guitars of choice due to its appealing tone and balance and will be a favorite for you too, if you decide to build one of these great guitars. Traditional woods used for the J45 are Sitka Spruce top and Ribbon-Cut Honduras Mahogany back and sides. Most often these guitars sport an amber to dark brown sunburst finish. Interested in 3D CNC files for this guitar? Visit J45 3D CNC files for tenon and dovetail joint options, and more. Note: As ALL of our plans are sold as digital downloads, when you complete your plan purchase with us, you will automatically be given a download link to access the plans. The following tabs detail what you will receive with our J45 Guitar Plans: Related Links: Guitar Side BenderNeck Assembly JigPlate Joining Jig Guitar Specifications: Total Instrument Length: 1040mm (40.94”)Upper Bout: 300.9mm (11.85”)Lower Bout: 408.5mm (16.08”)Waist: 270mm (10.63”)Body Length: 512.8mm (20.19”)Depth At Heel: 98mm (3.86”)Depth At Butt: 122.8mm (4.83”)Neck Width @ Nut: 44.4mm (1.75”)Neck Width @ Body: 54.5mm (2.15”)Fretboard Radius: 406.4mm (16.0”)Scale Length: 628.65mm (24.75”) Guitar Features: Classic Jumbo Shape14-Fret Neck - Standard WidthNeck Connection: Bolt-On, Dovetail, or MortiseFretboard Radius & Neck Profile SectionsClosed Pegged w/3L & 3R Tuners Larger Bodied GuitarTraditional X-BracingAdjustable Truss Rod in NeckMustache Bridge, & One Optional ShapeIdeal for Flatpicking & Rhythm Master Plan Content: 5 Sheets of Drawings Overall guitar plan with notes and dimensions Details of Complicated Construction Areas & supplemental Photographs of Key Construction Items + Descriptions Longitudinal and Lateral Sections Through The Guitar. Top Bracing Layouts Top and Side Views Three Neck/Body Connection Options: Bolt-on, Dovetail, Mortise & Tenon. Mustache Bridge and Belly Bridge Shape Options Enlarged Purfling Details Back layout and Back Brace layouts Complete Template Sets Including: Top, Side Contour, Neck Contour, Bender Form Insert, Headpiece Layout, Back Arch Template & Top Layout Template Form Package Content: 3 Sheets of Drawings Inside Form Plan Top Front and Side Views & Details Workboard Layout 2D CNC Package Content: 2 CAD Files in .DWG & .DXF Format. The Last Image on This Sales Pages Shows The Content of These Files.