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How it works · HIIT Burn
- 1
Book your spot in the app up to 7 days ahead
- 2
Arrive 10 minutes early to set up your station
- 3
Follow the on-screen timer and your coach's cues
What are you looking for?
Group classes
HIIT Burn
- For
- All levels
- Price
- Included
45 minutes of intervals that leave you breathless, sweaty and done before breakfast.
“I'd never set foot in a gym before Northline Strength. The coaches made me feel welcome from day one and I've just run my first half marathon.”
Hannah W. · 4.9 average from members
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Tell us what you need and our coaches will take it from there. It's quick, there's no obligation and we reply the same day.
Best Boutique Gym 2025 – City Fit Awards · Level 3 certified coaches
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Still have questions?
Our team is happy to help by phone or email. We reply within one working day.
Is there a joining fee?
No. There's no joining fee and no lock-in contract on any membership. Cancel with 30 days' notice in the app.
How does the free trial work?
Your first 7 days at Northline Strength are free, including unlimited classes and a coach-led onboarding session. No card needed to start.
Can I freeze my membership?
Yes, you can freeze for up to 3 months a year for travel, injury or life. Just request it in the app.
I'm a complete beginner. Where should I start?
Book a free onboarding session, then try Strength Foundations and Mobility & Recovery. Every class has scaled options.
How do I book classes?
Book through the app up to 7 days ahead. Join the waitlist if a class is full; you'll be notified automatically if a spot opens.
What's your cancellation policy?
Cancel classes up to 2 hours before start and PT sessions 24 hours before. Late cancellations count as attended.
Do you have showers and lockers?
Yes, with towels, hairdryers and toiletries provided. Day lockers are free; permanent lockers are $15 a month.
Is there parking?
Free parking for members behind the building on Foundry Lane, plus secure bike racks. We're a 5-minute walk from Austin central station.