Walk-In Coolers for Breweries, Bars and Keg Storage
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By Renato J. Alonso, Founder and President, Qube Cold Storage Solutions · Updated October 28, 2026
A keg cooler holds beer at 34 to 38°F, and a full half-barrel weighs about 161 lb, so the floor matters more than anything else. Go floorless on concrete so kegs roll in on a hand truck, or order a reinforced insulated floor. Size the room by keg footprint plus an aisle, and size the refrigeration for how many warm kegs arrive at once.
Temperature
The Brewers Association's draught quality guidance keeps beer at 34 to 38°F from keg to glass. A steady temperature matters as much as the number: beer that runs warm foams at the tap. Tell us your target and we select the system to hold it. For general cooler setpoints, see what temperature a walk-in cooler should be.
Floors: the keg question
| Floor | Good for | Watch for |
|---|---|---|
| Floorless, on your concrete | Hand trucks and keg dollies rolling straight in; dropped kegs land on concrete | Needs level concrete; aluminum angle seals the base inside and out |
| Standard insulated floor | Light carts and shelving | Not built for dropped kegs, pallet jacks or hard wheels |
| Reinforced insulated floor (3/4" plywood under the wearing surface) | Keg storage where the box cannot go floorless | Raises the floor at the door; a ramp is a separate item |
More on floors: does a walk-in cooler need a floor?
How many kegs fit
A half-barrel is about 16" across. Single-stacked on the floor with a 36" aisle, on floor space alone (not a tested layout):
| Room | Inside, about | Half-barrels on the floor, about |
|---|---|---|
| 8x10 | 9' x 7' | 18 |
| 10x12 | 11' x 9' | 32 |
Two-level keg racks roughly double those numbers. Plan the aisle for your dolly and the door swing.
Doors
- 36" x 78" standard door: takes a keg dolly.
- Manual sliding doors, 4' to 10' wide: for pallet deliveries, or tight aisles where a swinging door gets in the way.
- Kick plates, 10" or 24" diamond plate: protect the door from kegs and dollies.
Refrigeration for warm deliveries
Kegs arrive warm and hold a lot of heat. A room that only stores cold kegs needs a small system. A room that takes 20 warm kegs every Friday needs one sized to pull them down (bring them to temperature). Tell us how many kegs arrive at once, how warm they are, and how fast you need them cold.
Beer caves with glass doors
Glass-door beer caves add another load: customers open doors all day, and stock often goes in warm. We have quoted runs of glass doors up to 88' long. For long store hours, 9 AM to 2 AM on one job, we select the system assuming the doors open all day, not an average day.
Draft lines
If your draft system runs through the walk-in wall, plan the penetration with your draft installer and seal it airtight. The trunk line and draft system are by others.
From the field
For a Florida club kitchen, we quoted a 10' x 19' cooler/freezer combination with the cooler floor reinforced for kegs and a sliding door on the cooler, so kegs and carts come in without fighting a swinging door. The reinforcement sits under the wearing surface, so the floor looks like any other. The difference shows after a year of kegs.
Ready? Tell us how many kegs you store, how many arrive at once, and your floor. You get a quote and a dimensioned drawing.
Questions people ask
Can I store kegs on a standard walk-in floor?
Not long term. Go floorless on concrete, or order a reinforced floor.
What temperature should a keg walk-in be?
34 to 38°F, held steady.
Can the walk-in hold kegs and packaged beer together?
Yes. Shelving for cases, and keep the floor zone for kegs.
Sources
- Brewers Association, Draught Beer Quality Manual (keg temperature and weight)