What are 'standard' depths for for post EIA racks?
Various sites advertise their product specs, but they don't always agree. Belden has a series of depths available (24, 28, 32, 36 inch depths):
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But I pulled an HP rack-mount terminal out of my scrap pile and measured the (not adjustable) depth between front and back mounting flanges at 29.75". This would suggest a 30" rack (1/4" off since my rack mounts to the inside of the rack rails.
I'm building up a rack (home brewed) to fit in an oddball location. I know that some side rails are adjustable. But some (see above example) are not.
What's the true story on standard front to back depths?