How Much Does It Cost to Build a Pre-Fab Garage or Barn?

A prefabricated garage or barn unit comes in a single kit that allows an owner to set up the structure, usually with very little outside help. The materials are all included, and the costs are kept low by avoiding contractor work and simplifying the construction process whenever possible. While a prefabricated structure may not have the durability or features of a full model with a foundation and insulation, it can still be used for a variety of purposes.


  • Depending on the type of pre-fab garage or barn you want to build, typical costs range from $2,000 for a small, plastic structure to as much as $50,000 for a large pole barn.

Costs for Metal Buildings

Wooden barns must typically be built by hand, and few reliable versions are available in kits that owners can buy and build with prefabricated parts. Instead, metal buildings are a more common barn solution where prefabrication is key. A kit for a metal building in 2019 typically starts at $5,000 and increases depending on the size of the building, what materials it uses and how complex it is. Average structures tend to cost around $10,000 to $15,000 while the larger versions that also include workshop space can cost upward to $30,000, which does not consider the cost of any necessary foundation work.

Costs for Garage Kits

Garage kits tend to be designed for smaller structures, which can help to lower the cost for the most basic types of garages. A typical prefabricated version costs $3,000 to $4,000 in 2019, which includes only a simple design for a single-car garage with no windows. Costs can rise to $14,000 or more for kits designed for two-car garages with greater numbers of features.

Costs for Storage Shed

If owners are looking for a simple storage shed option that can be used for a variety of purposes, costs are often much less. Manufacturers offer plastic options and other alternative materials that have lower costs. A mail-order kit in 2019 costs between $2,000 and $6,000 for an 8 x 10 foot storage shed. Smaller versions may be available for only several hundred dollars, making this an ideal solution if homeowners are only looking for simple storage capabilities.

Pole Barn Options

Pole barns do not need any type of foundation, can have open sides and can often be moved from location to location. While they are not technically prefabricated barns, they are sold in kits that cost between $5,000 and $30,000. If you hire someone to construct a pole barn for you, you're looking at paying between $8,000 and $50,000. This wide price range shows the different size options available plus extra features like windows, insulation, sliding doors and storage lofts.