A sliding glass door is wide enough to let in all the sunlight and a surprising amount of dust, but narrow enough to make you sweat your furniture decisions. Don’t trust the pretty picture. Trust the tape measure. And when in doubt, buy a loveseat instead of a sectional. Your back—and your neighbor with the crowbar—will thank you.
Now go forth, measure your door, and may your couch always slide through without a scratch. If it doesn’t? Well, you can always take the door off the track. We’ve all been there.