Beef Loin, Bottom Sirloin, Flap
USDA Spec
IMPS 2020 §185AIn simple termsThe bottom sirloin flap, also called bavette, the obliquus abdominis internus muscle from the bottom sirloin. A bistro and chef-driven steak cut, also sold heavy into Mexican-style carne asada programs. Main muscle: obliquus abdominis internus.
Individual muscle. Consists of the M. obliquus abdominis internus from the hindquarter and bottom sirloin butt, separated from the ball tip and M. tensor fasciae latae through the natural seam.
- Weight range
- 2-down to 3+ lb
- Key muscles
- obliquus abdominis internus
- Removed
- all bones, cartilages, heavy connective tissue
- Primal
- Loin
Last 6 months
Recent prints
| Date | Choice (¢/lb) | Select (¢/lb) | Ch/Se Spread |
|---|---|---|---|
| 2026-06-26 | 915.54¢/lb | - | - |
| 2026-06-25 | 885.33¢/lb | 795.82¢/lb | +89.51¢/lb |
| 2026-06-24 | 944.28¢/lb | 768.06¢/lb | +176.22¢/lb |
| 2026-06-23 | 879.92¢/lb | - | - |
| 2026-06-22 | 913.87¢/lb | - | - |
| 2026-06-19 | 887.71¢/lb | 801.29¢/lb | +86.42¢/lb |
| 2026-06-18 | 1009.19¢/lb | 810.54¢/lb | +198.65¢/lb |
| 2026-06-17 | 887.30¢/lb | 823.09¢/lb | +64.21¢/lb |
| 2026-06-16 | 908.18¢/lb | - | - |
| 2026-06-15 | 876.11¢/lb | 785.68¢/lb | +90.43¢/lb |
| 2026-06-12 | 871.21¢/lb | 905.33¢/lb | -34.12¢/lb |
| 2026-06-11 | 935.64¢/lb | 802.25¢/lb | +133.39¢/lb |
| 2026-06-10 | 921.33¢/lb | 872.52¢/lb | +48.81¢/lb |
| 2026-06-09 | 855.83¢/lb | - | - |
Frequently asked
What is the current wholesale price of beef loin, bottom sirloin, flap?
$9.16/lb as of 2026-06-26, Choice grade, from the USDA AMS National Daily Boxed Beef Cutout report. That's down 0.6% week over week.
Where has loin, bottom sirloin, flap traded recently?
Up 17.3% over the last six months. Bid side has been in control.
How is beef loin, bottom sirloin, flap priced?
Wholesale beef loin, bottom sirloin, flap is priced FOB plant in cents per pound and reported daily by USDA AMS as part of the National Daily Boxed Beef Cutout, Negotiated Sales (LM_XB403) report. Prices reflect weighted-average negotiated trades for delivery within 0-21 days.
What is IMPS 185A?
IMPS 185A is the USDA Institutional Meat Purchase Specifications code for Beef Loin, Bottom Sirloin Butt, Flap, Boneless (IM). It's the standard spec used in wholesale trading and procurement contracts.
About this cut
The flap meat of the bottom sirloin. Loose-grained, well-marbled. Popular in carne asada and bistro steak preparations.
Multi-year history, 5-year seasonal overlay, and a 26-week forecast. Free 7-day trial, then $89/mo USD. Cancel anytime.