Modular Garage Prices: How Much Does a Detached Garage Cost?

modular garage prices how much does a detached garage cost

How much should a detached garage cost? When you’re getting prices for a modular garage it can be difficult to determine what the price range should be. There are many factors to consider when budgeting for the cost of a modular detached garage. Here are four of the main variables that come into play.

1. Building Methods

Detached garages can be built using a variety of methods. Each method affects the final cost of the building and comes with its own advantages and disadvantages. The most commonly used methods are:

  • Stick Built
  • Prefab
  • Modular

A stick built garage is built from the ground up on site. This method is the most time consuming and usually the most expensive. Advantages are:

  • The garage can be built on a concrete floor.
  • This method should be used when a high level of customization is desired.
  • Best for very large garages with more than one story.
  • For building sites that are difficult to access with large equipment.

A prefab garage is often partially assembled in a factory and then delivered to the site in pieces. The pieces are assembled on site to form the new garage. Parts of the garage that are pre-assembled are usually walls and rafters (or engineered trusses). Advantages are:

  • The garage can be built on a concrete floor
  • This method is usually more efficient and cost effective than the stick built method

A modular garage is usually completed in a factory and then delivered to the site as a complete building. For two car modular garages, the building is delivered in two sections which are then joined together on site to form a single building. Advantages are:

  • This is one of the most cost effective methods of adding a garage to your property.
  • The garage can be moved if necessary.

The main disadvantage of a modular garage is that customization possibilities are limited. Wall heights are restricted to around 8’ and the maximum length and width is around 28’ x 40’ or a little larger.

The building method that you choose for your garage will certainly have an effect on the final cost.

2. Local Building Code Requirements and Geographical Location

Another factor to consider when thinking about the cost of a detached garage is local building code requirements.

If you live in a hurricane prone area, your township may require you to install hurricane straps and other reinforcements. You may also need to use reinforced roofing materials, impact resistant windows, or other upgrades.

If you live near a large metropolitan area, land is often more valuable. You will likely incur higher taxes and fees associated with installing your new garage.

Your township may require minimum setbacks from your neighbor’s property. If you need to request an exception to the setback requirements, then you’ll need to get a maintenance easement that’s signed by your neighbor. This will give you permission to enter your neighbor’s property if you need to perform maintenance tasks on your garage. Your neighbor may ask for a reimbursement before signing the agreement and you may have legal fees associated with getting a lawyer’s help with drafting the easement documents. You may also find out blog post on preparing for the delivery of your wooden storage building helpful.

In some parts of the country, construction labor rates are higher than others. Rates may also fluctuate with the season, since builders tend to bid on jobs more competitively when they don’t have much work coming in. So the cost of building a detached garage may vary from one city and state to the next.

3. Lay of the Land

A third factor to consider when considering the cost of installing a detached garage is the lay of the land. Will your building site require extensive excavation or is it already almost level? If excavation is required you may also need to consider installing a retaining wall to prevent erosion of the ground around your garage.

4. Building Features and Options

Fourthly, you should pay attention to the building materials that are used in the quote when you’re getting a price for a building. Not all builders use the same materials. Some materials are made to last for generations with a little maintenance, others will disintegrate quickly when exposed to the sun and moisture. The materials that are used will affect the final price of your detached garage.

The price of the garage will also be affected by your decision to add extra options. You may choose to stick with a basic garage that gets the job done, or you may add some extra options to make the garage work better for your needs. Options may include a ramp leading up to the overhead doors, an electrical package which can turn your garage into a workspace, or extra windows and doors. There are also many other options available.

Modular Garage Prices in Western PA and Eastern OH

With all of the factors considered, how much will a detached garage cost?

We’ve already seen that the price will vary based on a variety of factors, so we’ll choose a scenario out of all the factors considered above and give you a ballpark figure for a new garage.

The geographical location is a small town in western Pennsylvania or eastern Ohio. Your property is relatively flat, so the shed pad won’t need much excavation. The building is a modular garage and the size is 24’ wide x 32’ long with 8’ high walls. Building features and options include:

  • Rust resistant fasteners
  • Heavy duty wood doors with keyed latch
  • 40 yr. metal roof or limited lifetime architectural shingles
  • Pressure treated foundation and exterior components including 4x6 runners, floor joists, ¾” plywood floor, trim, and T1-11 siding.
  • Air vents for temperature control
  • Wood sealer on the pressure treated siding
  • (2) 9’ wide x 7’ high overhead doors
  • 36” side entry door
  • (2) windows


Here is a breakdown of the estimated cost. Remember that this is only a ballpark figure. Request a quote from your builder to get a solid price.

Garage (including delivery, setup and taxes) $17,500

Gravel foundation pad $2,000

Permits and misc. $500

Total estimate cost: $20,000

Does That Help?

Maybe your looking for something much smaller? Modular garages come in a wide range of sizes, anywhere from 12x16 to 28x40. The best way forward if you know what size you need is to request a quote from your builder. Most builders offer free quotes on wooden portable buildings. That way you know for sure how much your new garage will cost.

P.S. If the cost of a new garage is too large for you to handle initially, you might want to consider getting garage space for rent at your home.

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