Monument Fitness Charlestown

Monument Fitness Charlestown

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Monument Fitness is the premier fitness location in Charlestown, MA. HIIT, Bootcamp, and Barbell clas

05/20/2026

Stacey Kroon, Co-owner and Head of Coaching, is one of one.

05/15/2026

Work hard. Get better. That’s our motto.

But it never happens alone. Here, you have a coaching staff with decades of experience training and coaching, and a community going through it with you every day.

05/04/2026

“Murph” is coming. And we are getting ready for it!

Saturday, May 23rd. Come take on the OG of hero workouts with the Monument Fitness family. Heats run every 90 minutes all morning.

Every fitness level is not only able to do it, but encouraged! No matter your fitness level and if it’s your first “Murph” or your 10th, we will help you get through it and love it in the end.

Tag a “Murph” buddy and see you Saturday of MDW!

Photos from Monument Fitness Charlestown's post 04/21/2026

We hear these myths all the time and honestly they never get old. Come find out for yourself why none of them are true. Just don’t say we didn’t warn you about Coach Stacey’s warmups.

Link in bio to book your free first class

Photos from Monument Fitness Charlestown's post 04/20/2026

Good luck to ALL the runners today at the . We have some people from the Monument Fitness family (and some friends) running we want to wish a very special good luck to.

Follow along with their bib below. Sorry for anyone we missed. Good luck everyone!!!

Kelly Whittaker-Cummings: 30653
Erin Murphy: 28661
Rachel Maglio: 31082
Dr. Elyse from The Method is also running. She helps so many of us out let’s lift her up throughout the day with positive vibes

04/07/2026

Kettlebell swings are easy? Easy to f up!!

How you pick the kettlebell up matters just as much as anything else, especially when using a HEAVY KB.

Wrong: standing directly over, deadlifting up, starting first swing totally on your own.

Right: stand ~6” away from the KB, let the weight swing itself for the first one.

Epically easier.

Photos from Monument Fitness Charlestown's post 04/02/2026

As always, it’s a great time to be a member at Monument Fitness.

A special mobility workshop with the best in the business, the Method PT, focused on the areas all us crossfitters have issues with: shoulders, back, and hips.

“Murph” is the Saturday of Memorial Day Weekend. Prep starts this month. Tuesday and Friday will have WODs focused on building capacity towards “Murph”. Don’t overthink it, Aaron does this every year and you usually don’t even know it.

Member perks: 30% off NOBULL always. Vivolo Wellness Club is extending 50% off all services for Monument members only during special hours.

Check your email for details!

Photos from Monument Fitness Charlestown's post 12/01/2025

A lot to look forward to this month!

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Location

Address

545 Medford Street
Boston, MA
02129

Opening Hours

Monday 5am - 8pm
6am - 8pm
Tuesday 5am - 8pm
6am - 8pm
Wednesday 5am - 8pm
6am - 8pm
Thursday 5am - 8pm
6am - 8pm
Friday 5am - 6:30pm
6am - 7pm
Saturday 9am - 12pm
Sunday 9am - 11pm