Warewashing · Tool
Measure the glass, get the rack.
Diameter and height in — compartment count and extenders out, straight from Carlisle's published OptiClean sizing chart.
Your rack
Carlisle also publishes model-by-model rack compatibility for the major glassware brands — bring your glass list to your rep and the whole rack room specs itself in one pass.
Compartment sizes
Height coverage
Email me these numbers
Asked every week.
How do I know what glass rack size to buy?
Two measurements: the smallest compartment your glass's widest diameter fits without touching the walls — Carlisle's compartments run 5.83, 4.45, 3.54, 2.91, and 2.36 inches inside for 9 through 49 compartments — and enough extenders to cover the height, from 3.2 inches bare to 9.5 inches with four.
Why not just use open racks?
Glass-to-glass contact. Compartment racks hold each glass apart, which is where most rim chips and scratches come from — the rack usually pays for itself in replacement glassware.
A tool gets you close. A person gets it right.
Every number here is a starting point, not a quote. Your Zink specialist runs these questions for a living — and checking your math costs you nothing.