National Average: $3,030 Click to see full answer. In this way, is it cheaper to buy or build a shed?Along with being less expensive, you can build your shed according to your schedule, which can be significantly faster than having a professional build it for you. A normal shed costs about $300 while hiring a contractor or builder can cost you up to $3000 with labor, materials, and additional costs.Likewise, how much does it cost to build a 10×12 shed? Our pricing for a 10×12 storage shed starts at about $3,000 for a painted cottage-style shed. The vinyl cottage shed starts around $3,400. Both of these come standard with a set of double doors and two windows. Thereof, how much would it cost to build a 12×12 storage shed? A 12×12 shed costs between $2,973 and $3,667.How much does a 10×10 shed cost? Starting Price for the 10×10 Gambrel Sheds: $2,688 Here you get the Barn Shed roof style with the Saltbox Shed front overhang.