How Long to BBQ Flat Iron Steak? Time, Temp & Tips

Name: BBQ Flat Iron Steak
Cook time: 8 min
Yield: 2-4 servings
Cuisine: Australian
Ingredients: Flat Iron Steak; Salt; Black pepper; Olive oil

By Bill Ohaire | Published: April 2026 | Last Updated: April 2026

Perfectly seared beef steak on a hot BBQ grill

Photo by Mohamed Olwy on Pexels

Quick Answer

BBQ Flat Iron Steak for 3-4 min/side at 230-260°C (450-500°F). Internal temp: 54-57°C (130-135°F) medium-rare. Rest for 5-8 minutes.

Flat Iron Steak BBQ Guide

Flat iron (oyster blade) is the second most tender muscle in the animal after the eye fillet. It has excellent marbling and a rich, beefy flavour. Grill hot and fast. It's uniform in thickness so it cooks evenly. An incredible value steak that rivals premium cuts.

Cook Time

3-4 min/side

Temperature

230-260°C (450-500°F)

Internal Temp

54-57°C (130-135°F) medium-rare

Rest Time

5-8 minutes

How to BBQ Flat Iron Steak — Step by Step

Prep: Bring to room temperature. Season or marinate as desired.
Preheat: Get your BBQ to 230-260°C (450-500°F). Clean and oil the grate.
Cook: Grill for 3-4 min/side.
Check: Use a meat thermometer — target 54-57°C (130-135°F) medium-rare..
Rest: 5-8 minutes before serving.

Common Mistakes

Overcooking — it's best at medium-rare
Not slicing against the grain
Missing this cut — many people don't know about it

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Frequently Asked Questions

How long to BBQ flat iron steak?

BBQ flat iron steak for 3-4 min/side at 230-260°C (450-500°F). Target internal temperature: 54-57°C (130-135°F) medium-rare.

What temperature for flat iron steak on the BBQ?

Cook flat iron steak at 230-260°C (450-500°F). Internal temperature should reach 54-57°C (130-135°F) medium-rare.

Related BBQ Guides

All Cooking Times Temperature Chart

Sources & References

Guga Foods (YouTube)

Premium beef experiments — dry ageing, wagyu, and creative steak techniques.

Video

Serious Eats

Kenji Lopez-Alt's food science approach to grilling the perfect steak.

Reference

Weber Grill Skills

Australia's most popular grill brand — guides for every cut and cooking method.

Manufacturer

AmazingRibs.com

The science of BBQ — temperature guides, techniques, and recipes backed by food science.