Joining 99 Barbell takes just a few minutes! Head to the Memberships page, choose your plan, and complete the form. Youâll fill out a quick waiver and book your mandatory gym tourârequired for all new members. After signing up, check your email for a confirmation link to download our app and access your digital barcode for entry. Members must be 18 or older; minors must be accompanied by a legal guardian at all times while in the facility. đȘ