Costco’s sheds have been going viral for their ultra-customizable potential and ease of assembly. We’ve seen the massive "Goliath" barn and the stylish "studio shed" take off with shoppers, showing that everyone on the internet can't get enough of these tiny home starter kits. (And honestly, neither can we.) After all, all of the sheds include free shipping and installation, so you can focus on customizing it to your needs and aesthetics. Below, we break down the differences between three of Costco’s massive sheds: Goliath, Maximus, and Titan. Scroll on to see the best fit for your storage needs, whether you’re a dedicated DIY-er who needs the extra storage space or want to build your (always visiting) in-laws their dream guest suite.

Includes 15-year limited material warranty

Stylish trim gives the doors and windows a more residential look

Comes with four-foot deep overhead storage loft

Separate permits might be required

You may need extra flooring for comfort

Dimensions: 12 feet and 10 inches tall, 16 to 32 feet wide, 16 feet deep

If you don’t want to sacrifice space but want to keep your shed from being an eyesore in your backyard, go with the elegant ranch aesthetic of the Maximus. The structure looks more like a traditional residential home, so the shed is the perfect start to your ADU journey. Operable windows both flank the double wide doors and bring light in through the side of the shed, so your space doesn’t have to be stuffy and dark inside. An optional vented skylight and wood ramp can be customized, turning this into the perfect guest suite (or Airbnb side hustle).