The item for sale are a set of CAD plans for the construction of a Riva Aquarama Style boat.These plans are redeveloped from original Riva Plans and are developed to be a veneer over frame build. I have two types of plans; 1. a 21 foot runabout suited for a single engine and 28 foot for twin engine set up.The files are in Autocad .dxf file so patterns can be milled out. The files are pre "nested on 4x8 sheet goods. A set of "build Jig" plans are also included.This is not intended for a first time builder and would be something better suited for someone with experience.For more information and PDF file over view please send me an e-mail.ThanksRayPS you can google "cudashark" to see my first 36 foot build.Will Ship on CD ROM