This guide from the Art of Manliness shows you how to create a gym in your garage for a complete, full-body workout anytime. You won't be able to park your car or store larger items afterwards, but you don't need to dedicate the whole garage to your gym.
The garage gym outlined in the article costs about $500 and takes about two weeks to complete. There's a suggested list of items to purchase, such as a barbell and a bench, as well as a few things you can build yourself.
Besides the convenience of not having to commute to a commercial gym, the DIY gym you set up has other advantages:
A garage gym can be an effective and efficient world-class training facility. It is built to suit your performance. Some of the fittest people in the world train in garage gyms regularly because they know the secret. Less equipment, fewer isolation exercises, less junk, but more efficient training.
Of course, if you have a shed or other similar space, you can use the tutorial to build your gym there instead.
Hit up the link below for the whole project details.
How to Turn Your Garage Into a Home Gym [The Art of Manliness]