Carvel built or carvel planking is a method of boat building where hull planks are laid edge to edge and fastened to a robust frame, thereby forming a smooth surface. traditionally the planks are neither attached to, nor slotted into, each other, having only a caulking sealant between the planks to keep water out. modern carvel builders may attach the planks to each other with glues and fixings.. Scarano boat building designs sailing vessels, power vessels, historic replicas, and provides expert repairs and restorations. boat builders and designers since 1976.. Introducing: myboatplans – "instant boat building!" the complete boat builders resource. over 518 detailed boat plans, schematics, cutting patterns, material lists for all types of boats..