In this video, I’m showing you how I installed the Costco Genius retractable screen door (mesh door) in just a few minutes, all by myself. I walk you through aligning the four frame parts into the door-frame shape and then fixing the edges into each other. The main thing I want you to learn from my experience is this: if the bottom part is not sliding in properly, don’t force it—loosen the screws first. Honestly, that “loosen the screws” step is not clearly mentioned in the instruction manual, and we wasted quite some minutes before figuring it out. Once I loosened the screws, the piece glided in smoothly and sat flush to the edges, and then I tightened everything back. I also show you how the frame should lay flush on your door trim and where the screws are on the sliding side. One important tip before you buy: this setup works if your door opens towards the inside—if your door opens to the outside, it’s not going to work for you. If you’re a renter, an H4 wife, or just want an easy bug-proof summer solution, this quick DIY is for you.