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Wine racking: capacity, layout and what you'll regret

Racking is the part of a cellar you live with daily. Capacity maths is simple; the regrets are about access.

How many bottles will actually fit

Bordeaux bottles are the reference size: 3 inches across, 12 inches long. That gives useful rules of thumb:

• Display racks (single-deep): about 12-13 bottles per square foot of wall face, stacking 12 rows in an 8ft wall.
• Diamond bins: 60-120 bottles per bin module depending on depth, the densest per dollar.
• Double-deep storage: roughly double the bottles, at the cost of accessibility — the back row is a storage unit, not a wine list.
• Magnums, Burgundy and Champagne: Burgundy bottles are wider than Bordeaux and Champagne is wider still. Assume 15-25% capacity loss if your collection is heavy in either.

Materials, honestly

Vibration, light and air

Vibration is the least important factor in practice, but it costs nothing to avoid: don't mount racking directly to the wall a compressor is bolted through, and give the unit a rubber isolation pad. Light matters more than most people think — UV degrades wine, so use LED and keep glass display areas away from sun. Airflow matters most of all: leave a gap between racking and the evaporator so cold air can actually circulate rather than pooling at one end of the room.

Layouts that work in real rooms

1. Two walls of display, one wall of bins. The best balance for people who drink from their collection.
2. Perimeter bins with a central island tasting table. Efficient, and the island gives you somewhere to put a glass down.
3. Floor-to-ceiling double-deep on one wall. Maximum capacity for a narrow room, but plan labelling from the start.

Next: work out the cooling load for the room your racking lives in, with the BTU calculator.

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