Who We Are

DOT BOX is built on the belief that training is more than just reps and sets — it’s about showing up for yourself and for each other. You’re not just another face in the crowd. Our smaller, structured gym gives you the support, coaching, and community that bigger gyms can’t. No matter your level, you’ll find your place here.

Built in dorchester. built to last.

Black kettlebells with weights ranging from 16 kg to 25 lbs on a metal rack in a gym, with colorful weight plates and dumbbells in the background.

Empty CrossFit gym with black mats, workout equipment, and a mirror on the wall. Ceiling has ropes and lights, with weight rack and whiteboard on the walls.

An interior view of a gym with black flooring marked with white lines, large windows on the left, and various fitness equipment hanging on the black walls, including suspension bands and weight plates.

A gym with weight plates and equipment organized on a rack and wall, with black flooring and ceiling, and some lighting fixtures.

Neon sign on a black wall that reads "BUILT IN DOT." with gym equipment and lighting fixtures above.

Street view showing a sign for the Dot Box establishment, with cars parked along the street, trees, buildings, and a traffic light under a blue sky with some clouds.

TRAIN WITH US

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TRAIN WITH US /

We put in the work the right way. Heavy lifts, high-tempo conditioning, real recovery - no shortcuts, no ego, no nonsense. Just strength, fitness, and grit that’s built to last.

A woman lifting a barbell overhead while in a squat position inside a gym with black walls and equipment

Strength & Conditioning

Our workouts aim to leverage diverse, high-intensity workouts that push strength, power, and and athletic training through functional movements.

A woman with long dark hair wearing a white hoodie and light-colored shorts squatting while lifting a barbell with yellow weight plates in a gym with black walls and equipment.

HYROX Training

As an official HYROX training club, we offer HYROX classes for those getting ready for race day — but even if you’re not competing, it’s an incredible full-body workout that builds strength and endurance.

A woman in workout clothes, smiling and holding a kettlebell overhead, in a gym. A man in black sportswear observes her. In the background, a young child watches, standing near gym equipment and colorful weight plates.

Personal Training

We offer one-on-one training based on your goals with a coach that keeps you accountable.

Learn More

Want in?

First class is on us! Sign up for a free trial class today. Rather talk with a coach first? Then fill out this form and we will get back to you within 48 hours.

Try a Free Trial Class