16x20 traditional shed design: the traditional style shed has design features that are found in many regions across the country. the gable shed comes standard with a 10/12 pitch roof but that can be changed when the roof trusses are ordered to be less of a pitch or more of a pitch. the roof overhang is 1'-0". 16x20 lean to shed plans: if you. This step by step woodworking project is about free 16x20 shed plans. i have designed this 16x20 storage shed so you can shelter all your garden tools, sports equipment and so on.. How much does it cost to build a 16x20 shed - download 12,000 more plans! - all our other plans contain more details than this sample plan! - all plans also comes in metric and imperial units. the secret is in following proven shed plans, step by step guides and detailed blueprints..