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Flank vs Skirt — What's the Difference?

Quick Answer

Flank (flank steak) and Skirt (skirt steak) are not the same cut: Flank is flank primal (abdominal flank steak); Skirt is plate primal (diaphragm (inside/outside skirt varies by spec)).

Canonical entities: Flank · Skirt

Side-by-side

flankskirt
Primalflankplate
Muscle / locationabdominal flank steakdiaphragm (inside/outside skirt varies by spec)
CharacterLong, fibrous abdominal cut; benefits from slicing across the grain.Plate primal diaphragm muscle; very beefy, used for fajitas and grilling.

Key differences

When to use each

Flank

Pick Flank when you want its specific marbling/texture profile: Long, fibrous abdominal cut; benefits from slicing across the grain.

Skirt

Pick Skirt when its primal/muscle traits fit the dish: Plate primal diaphragm muscle; very beefy, used for fajitas and grilling.

Flank and Skirt are different canonical muscles/primals: Flank is flank (abdominal flank steak); Skirt is plate (diaphragm (inside/outside skirt varies by spec)).

Choose based on tenderness, marbling, grain direction, and how you plan to cook (sear vs braise vs slice thin).

Read the full guides: flank (what-is) · skirt (what-is) · flank hub · skirt hub

People also ask about this cut

Are Flank and Skirt the same cut?
No—Flank is flank primal (abdominal flank steak); Skirt is plate primal (diaphragm (inside/outside skirt varies by spec)).

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What is the difference between Flank and Skirt?
flank steak vs skirt steak: different muscles; use the comparison table on this page.

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Which is better for grilling, Flank or Skirt?
Depends on thickness and marbling; Flank is Long, fibrous abdominal cut; benefits from slicing across the grain.… while Skirt is Plate primal diaphragm muscle; very beefy, used for fajitas and grilling.…

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Show 2 more questions
Where does Flank come from vs Skirt?
Flank: flank (abdominal flank steak). Skirt: plate (diaphragm (inside/outside skirt varies by spec)).

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Can I substitute Flank for Skirt?
They are not interchangeable cuts—expect different texture unless a recipe explicitly allows a swap.

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How this information is generated

This information is for educational purposes only and may vary by region or butcher practices.