I purchased the solid version to install in my 2 car 1960’s brick garage. It was reasonably priced and despite some mixed reviews I’m absurdly happy with the way it turned out. I will say if you wrench on cars the solid seems to be the way to go. I have a couple of friends who have the open style “drain” tiles above and found they held dirt, spills, and it was easy to loose small parts in them. I went with these from Costco. I’m happy to answer specific questions but a couple of tips: Especially if installing in an old structure leave yourself some extra space or make sure the floor structure is “true” side to side and front to back. My garage is 1.5” off that required some creative cuts. Have a plan for how you want to orient the floor before you start. Have a couple of friends and rubber mallets handy, it made install a breeze. You can purchase edges separately without messing around with the kit Costco sells here Wear gloves when installing, your hands will thank you. If you need to cut some tiles like I did the Bauer deep cut bandsaw available at your local harbor freight works great, available here Answer from hammeresq on reddit.com