Having scrolled through about 40 different bed threads, I'm still somewhat stumped. Building a bikes-below-bed east-west system, and as always, every single little inch seems to matter. My current rough build is just using Ikea rails, which are about 2.5" deep. However, even w/ my dropper post lowered all the way, there isn't a ton of space up top. What's likely the narrowest/thinnest approach to solving this? Would 1"/25mm 80/20 be suitable (presumably I'd need more than 3 braces)? Does anyone know of a narrower option that is more of a sheet?