Want to know how to build your own detached DIY workshop or garage? We will share our experience, progress and costs to build our 30×40 metal building. We’ll share details of how we built the foundation, framing up the shop, and what equipment we had to have. You’ll learn from our experience and what the pros and cons are of doing it yourself. It was a big money saver to do the job ourselves but it is not for the beginner DIY’er.
level of skill needed for the job:
Concrete Foundation: moderate-advanced construction experience needed (Consider hiring this part out to a Pro.) We had the gravel delivered and we leveled the ground and gravel ourselves using a transit that was borrowed from a friend. The concrete we had hired.
Metal Building: moderate for someone with basic construction experience.
Design, Ordering, and Delivery
We selected a 30×40 steel metal building kit with 12 foot side walls. We made the garage tall enough to where we could install a car lift in the future . The metal siding color we selected is Sahara Tan and Burnished Slate for the trim color. The roof is galvalume metal.
We ordered the building kit from a company called Whirlwind Steel Building in Bolivar, MO. The cost of this building kit was $11,907.00. That included all of the metal and insulation. A couple weeks after ordering the building, it was delivered to our home on a semi truck. We used our tractor with forks to unload the materials off of the truck.
Prepping and foundation
Several trees had to be taken down in the spot where we wanted the garage to be. After taking the trees out with a tractor we had to let the ground settle for a couple weeks. It ended up being a couple months later that the gravel was finally delivered. Here are some basic steps of how we built a foundation for our shop:
- Mark corners of your building site
- Setup boards on the corners to layout the building’s foundation with strings. Once the building layout is square, mark lines on the ground with spray paint. These lines indicate where you dig your footings. You will need to have a tractor to dig the footings
- Start framing up the foundation with your shop building plans. All plans will differ from one another depending on size and design of building.
- You are now ready for concrete. Estimate how much concrete you will need for your slab. We hired our concrete slab to be poured. If you are wanting to pour the concrete yourself. You will need a power trowel, a bull float, and long poles.
- You should wait a couple days before stripping the boards off of the sides of the concrete slab.
- The slab was finally done! A couple weeks later the building process began.
Putting together the steel frame
One of my husbands close friends had quite a lot of experience with building metal buildings. He also had a boom truck that he brought over to make the assembling easier. He hired him to help with putting together the shop building. Our shop building kit came with a manual with instructions on how to install the building correctly.
First we began to set the corner posts and girts, and bracing everything as we went. Then we installed the rafters, assembling them on the ground first then lifting them with a boom truck. After the rafters were set, Kyle secured them into place. With every step we made sure each frame line was straight and aligned. This job definitely needed a minimum of two men or more. It ended up taking a few weeks to put the whole frame together. Weekends was our only time to work and so it was a slow process.
installing metal siding and trim
The metal panel installation was fairly easy, we just installed panel by panel, from the sides, roofing then trim. You do need to measure and cut all pieces to size. Insulation had to be placed on first with insulation tape to hold it to the metal frame. Metal panels was then placed over the insulation.
All of the trim pieces had to be measured and cut to size. We had to make sure all of the screws on the building were in place and tight once we was finished.
garage doors and flooring
We installed two 12 foot garage doors with automatic openers. Total cost for the doors was $2,200 and to add the automatic openers was an extra $800.
We decided to add a sealer to the concrete so it would be easier to clean after oil spills and mud. We used the BEHR Concrete and Garage Epoxy Coating from Home Depot and added in decorative color chips as we were laying the paint. This turned out really good!
We still need to add electric and light fixtures inside the shop. As well as a concrete driveway going up into the shop.
I hope our experience is a help to you if you are thinking of building a detached DIY workshop garage. We would definitely do this again. We saved so much money in being able to do this project ourselves!