SunnyPoint Bedside Shelf, Office Divider; Clamp on Shelf for Bunk Bed, Lofts & Bed Frame. (Standard - 13.78" X 9.84" X 2.21", Dark Oak)

Q: What is the clamping range?

The Maximum Clamping Range is 3"

Q: I think my earlier question was misinterpreted. I'd like to know how far apart the two clamps are from each other, not the width of each clamp.

Got it. My bad. The distance between two clamps Standard: Inner 7.67"; outer 10" Larger: Inner 13.46"; outer 11.14"

Q: What is the minimum clamping width and why isn’t that listed so customers can readily see it?

Thank you for reminding me. I will update the information on the product detail page and photos. The minimum clamping width is 17mm = 0.7 Inch The maximum clamping width is 3.2 Inch.

Q: is this large enough to hold cpap machine?

It really depends on what kind of cup machine you are talking about. For example, I fits Keurig K-mini Plus coffee maker, and or K-Classic coffee maker. But even though, some K-cup machine fits, but I still don't suggest you put K-cup machine on. K-cup machine is better to place on the table, solid table.