Firewall CrossFit

120 Jeffrey Ave, Holliston, MA 01746 · CrossFit affiliate

$30drop-in

Single adult drop-in. Usual in Massachusetts: $25.

Book a drop-in

No online booking. Call or email to book in.

Phone
+15088176625
Email
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Website
firewallfitness.com
Instagram
@firewall_fitness

Before you go

What does it cost?
$30 for a drop-in.
What are the visitor rules?
Drop-in class; at least 3 months of fitness experience; pay online, then book the class

Checked Oct 23, 2026, from firewallfitness.com. Prices change, so confirm with the gym before you go.

Nearby gyms

All drop-ins in Holliston, MA