How Many Beers Should a Bar Keep on Tap? Size the Wall to the Turnover, Not the Ego

Updated September 2026 by Brad Lugar, owner of Steel City Tap Co., Birmingham, AL.

Quick answer: Keep as many beers on tap as you can kick in two to three weeks each. A half barrel is about 124 pints, so a tap needs to sell roughly 45 to 60 pints a week to stay fresh. Most neighborhood bars pour that on 8 to 12 beers. A 40 tap wall where half the kegs are a month old serves worse beer than a 12 tap wall that turns. Put the slow styles on sixtels and rotate them.

We build tap handles in Birmingham, AL, and we see a lot of tap walls. The biggest ones are rarely the best ones. Here is how to size yours.

Start with the math

A US half barrel keg holds 15.5 gallons, about 124 sixteen ounce pints. Beer in a properly kept keg is at its best for a few weeks after tapping, and downhill after a month or two. So the question is not how many taps fit on the tower. It is how many beers you can sell 124 pints of in two to three weeks.

A bar doing 600 pints a week supports about 10 to 12 half barrels turning at a healthy pace. A bar doing 200 pints a week supports 4 or 5. Add taps past that and you are adding stale beer, not selection.

The sixtel trick

A sixtel (1/6 barrel) holds about 41 pints. Put your slow movers on sixtels: the barrel aged stout, the sour, the 10 percent Belgian. They kick in a week or two at low volume, the beer stays fresh, and you get to keep the variety without the waste. Fast movers (the flagship IPA, the lager, the seasonal everybody wants) stay on half barrels.

The factors that actually matter

• Weekly pint volume. Count it. Everything else follows from this number.
• Style mix. Two or three lagers, a pale ale, an IPA, a dark beer, a sour or wheat, a cider or seltzer for the person who does not drink beer. Cover the styles before you add depth in one.
• Rotation. A rotating tap or two keeps regulars curious. Ten rotating taps means nobody knows what you pour.
• Line cleaning. Every line is a line you have to clean every two weeks. More taps is more labor.
• Cooler space. Every tap needs a keg on and a keg in reserve. Count the cooler before the tower.

Home bars

Two to four taps. A kegerator with a dual tower is the sweet spot for most people, one flagship and one rotating. More than four and you will be pouring out a keg you got tired of.

Keeping a rotating wall labeled

The problem with a wall that rotates is that the handles stop matching the beer. The brewery handle is for last week's keg, the bartender is answering "what is that one" all night, and the customer orders the beer they can read. The fix is a house handle set: a magnetic metal handle that stays on the faucet with a printed magnet you swap when the keg changes, or a chalkboard wood handle you write on. One set, every beer labeled, starting at 12 units.

Running a taproom with your own beer on every faucet? Then every one of those handles should be yours. Browse stock tap handles or request a quote and send us the beer names.

Frequently asked questions

How many beers should a bar have on tap?

As many as it can kick in two to three weeks each. For most neighborhood bars that is 8 to 12. A tap needs roughly 45 to 60 pints a week to keep a half barrel fresh.

How long does a keg stay fresh once tapped?

A properly kept keg on CO2 is at its best for a few weeks and noticeably worse after a month or two. Faster turnover is the whole advantage of draft.

How many pints are in a sixtel keg?

About 41 sixteen ounce pints. Sixtels are the right size for slow selling styles you still want on the wall.

How many taps should a home bar have?

Two to four. A dual tap kegerator with one flagship and one rotating beer covers most home bars without wasting kegs.

How do you label a rotating tap wall?

Use a house handle set: magnetic metal handles with swappable printed magnets, or chalkboard wood handles. The handle stays on the faucet and only the label changes.