Building one from scratch is obviously the most difficult, but it is sometimes possible to save money if materials are bought carefully so there is little waste. It is possible to buy a kit for an 8-by-8-foot unit for less than $500. The kits generally include the necessary materials you’ll need without wasting building supplies
How much do they cost?
The exact price depends on the size, brand, and on the materials that you use during the assembly, but the average cost of buying a prefabricated kit ranges from about $500 to $2,000. You can also hire a company or contracting professional to assist with installing it.
In most areas, you generally do not need a building permit for a smaller unit, such as a 6×8 or an 8×10. However, larger storage buildings may challenge local zoning restrictions. Many areas will only allow them to be installed in backyards.