Fuel Body Lab

Customer Experience

Fuel Body Lab occupies a P Street townhouse near the corner of 30th Street, its big black-framed bay window lettered PEACE · LOVE · PILATES over a wooden barrel and a spray of cherry-blossom decals — right next door to the longtime green storefront of Morgan’s Pharmacy. It’s a quiet, residential stretch of Georgetown, a few blocks uphill from the M Street bustle, and the studio fits the block: small, bright, and unflashy.

Inside, it’s a boutique reformer studio rather than a big-box gym — high ceilings, lots of natural light, and deliberately tiny classes, with group reformer capped at four people. That intimacy is the whole point: you get hands-on, instructor-led attention rather than a crowded mat room, and regulars tend to single out founder Kelly Griffith by name. It’s booking-based and boutique, not a drop-in-and-wander fitness floor.

Claim to Fame

Fuel Body Lab is one of Georgetown’s longest-running boutique studios, and something of a DC fitness pioneer. Kelly Griffith opened it as Fuel Pilates in 2010 — among the first to bring barre to Washington — and rebranded it Fuel Body Lab in 2017, when she became the first to bring trampoline fitness to the DC scene. After well over a decade in the neighborhood, the studio moved into its current 3003 P Street home in 2023.

The core is reformer Pilates, taught on a full studio kit — four reformers, three chairs, and a full-sized Cadillac — across group reformer, private and duet sessions, and a rotating roster of barre, trampoline, sculpt, tabata, and mat classes. The instructors are formally certified (founder Kelly is BASI-certified, as are several of the team), and privates can be booked in studio or virtually.

Preparing for Your Visit

It’s booking-based, with no walk-in hours. Group classes are scheduled through MindBody, and private or duet sessions are arranged directly — text or email the studio at (202) 316-7377 to set one up. Plan ahead, and note the 24-hour cancellation policy.

Pricing is à la carte rather than membership-based. A group reformer drop-in is $44 (or $400 for a 10-class pack); private sessions run $125 each ($1,100 for ten), and duets are $160 a session, or $80 per person. Classes are also offered through ClassPass, and — as with most reformer studios — grip socks are the norm.

This is a residential corner, so street parking on P and around 30th and Wisconsin is tight — a garage in the Wisconsin Avenue or M Street corridor is the easier bet if you’re driving in.