Why CAB Raised the Ribeye Area Limit to 17 Square Inches

For 18 years, the upper limit for ribeye area in the Certified Angus Beef specifications stood at 16.0 square inches. In 2025 it moved to 17.0. A one-square-inch change sounds small, but it affected a meaningful share of cattle, and it says something about how the brand adapts as cattle change. This article explains the reasons, what the data show and what it means whether you are raising cattle or buying beef.

What changed and when

The Angus Journal's Behind the Brand column says the 16.0 square inch limit had gone unchanged for 18 years and was raised to 17.0 in 2025. According to Drovers' CAB Insider report, the new range took effect in the first week of March 2025, extending the acceptable range from 10-to-16 to 10-to-17 square inches. Check the brand's current specification documents for the exact wording, because limits can be revised again.

Why the brand moved

• Cattle got heavier: Heavier carcasses tend to have larger ribeyes. The brand had already raised its hot carcass weight limit by 50 pounds to 1,100 in 2022, and Drovers reports that since then the share of carcasses excluded for oversized ribeyes has risen by 30 percent.
• A growing share was over the line: The Angus Journal column reports that the share of carcasses above the old upper limit reached 20.5 percent in 2024. Drovers says ribeye size was the reason for about 20 percent of failures among Angus-eligible carcasses that year.
• The effect on the plate is small: Drovers cites a 2024 Colorado State University study, reported by the brand, finding that for a 12-ounce center-cut strip, the difference between a 16.1 and 17.0 square inch ribeye is less than a tenth of an inch in thickness.
• Supply matters: The brand has said it wants to ease downstream supply pressure as fed cattle supplies trend lower.

The data behind the decision

Drovers reports that the brand reviewed data on six million carcasses from packing partners over three years and found that in 2024, 7.4 percent of certified carcasses would have fallen in the 16.1 to 17.0 range. In plain terms, a significant number of otherwise qualifying carcasses had been sitting just above the old limit. The brand has said the change is not a push toward larger cattle. It is meant to keep the brand relevant as the cattle population evolves.

Where ribeye area stands now

After the change, ribeye size is a smaller problem. In the column's latest figures, 9.5 percent of non-qualifying carcasses exceeded 17.0 square inches, compared with 81.8 percent that missed for insufficient marbling, 14.5 percent for hot carcass weight and 9.8 percent for backfat. A carcass can miss for more than one reason, so those figures add up to over 100 percent. Carcasses that made the brand averaged a 14.6-square-inch ribeye, while those that missed averaged 15.2, according to the same column.

What it means if you raise cattle

1. You have a little more room. A ribeye of 16.5 square inches no longer disqualifies a carcass.
2. It does not remove the upper limit. Cattle with very large ribeyes still miss, and size tends to go with carcass weight, which has its own cap.
3. Marbling still matters most. A bigger window does nothing for a carcass that lacks enough marbling.
4. Watch the whole package. Our guide to reading a carcass data sheet shows how ribeye, fat and weight relate to yield grade.

What it means if you buy beef

Not much, at the counter. The minimum remains 10 square inches, and the steak you buy is still cut from beef that meets the brand's marbling and other requirements. The CSU result cited by Drovers suggests the change in steak thickness is hard to notice. The brand also allows a higher ribeye area, up to 19 square inches, for certain non-rib cuts at approved plants. For more about what the label guarantees, see our guide to reading a beef label.

Why specifications keep shifting

Spec changes can feel arbitrary, but they usually follow the cattle. Fed cattle weights have risen for decades, and farm.fm's page on boosting Angus market value touches on why carcass quality links to price. The brand responds with periodic updates. Producers should expect more changes in the future, and should avoid breeding for a number that sits right at a limit. Aim for the middle of the range.

Next steps

Check the brand's current specification sheet at certifiedangusbeef.com, which is an independent brand and not affiliated with this website. The USDA beef grading page and the Beef Research site provide background. For service providers, the agriculture directory can help.

A single square inch moved, and it rescued a good many carcasses from missing on size alone. The bigger lesson is that the target moves, so keep your eye on the whole carcass and on the data your own cattle produce.