About us
Designing performance-driven spaces with lasting purpose and precision
Beachside Custom Gyms was founded from a simple belief — fitness and wellness spaces should feel as intentional and refined as the rest of the home. Rooted in design thinking and real construction knowledge, we create environments that connect people to movement, health, and daily performance through thoughtful, purposeful architecture.
Every project begins with understanding. We take time to study how a space will be used, the routines it needs to support, and the lifestyle it belongs to. From there, we design environments that feel considered, functional, and seamlessly aligned with the people who use them every day.
A disciplined process. Exceptional execution.
I’m Kali Sudbrook. After 12 years as a Fitness Director at UC Irvine, and Kinesiology Professor at Cal State Fullerton, I built Beachside to solve a problem I kept seeing: gyms treated like an afterthought in otherwise beautiful homes. I design fitness and recovery spaces with the same intentionality as kitchens and primary baths, because the room only works if you actually want to use it.
My advantage is that I’m not only designing the room- I understand how it gets built. That means clearances that work in real framing, electrical plans that match equipment loads, ventilation that holds up under heat and humidity, and materials that perform under daily use.
Beachside offers design services nationwide, and design‑build execution across Southern California. Whether you need a build-ready plan set for your builder or a full turnkey scope, the standard stays the same: disciplined process, exceptional execution, no guesswork..
Beachside Custom Gyms Founder,
Kali Sudbrook
Credientials:
- Interior Designer
- CA State Contractors License: 1096021
- Certified NSCA Strength & Conditioning Coach, Personal Trainer, and Tactical Facilitator
Kali Sudbrook
Founder, Beachside Custom Gyms
James
Designer
Ethan
Items Expert
Olivia
Strategy Thinker
The Visionaries
Where expertise meets understated luxury.
Behind every project is a team committed to precision and the power of thoughtful design. With a focus on sleek aesthetics and high-end finishes, our experts bridge the gap between imagination and reality. We believe that a space should feel as intentional as it looks—refined, balanced, and uniquely yours.
our values
Driven by purpose, designed with passion. Integrity in every detail.
Design Authority
Every fitness space is carefully planned with attention to movement, flow, clearances, acoustics, ventilation, and material quality — ensuring it integrates seamlessly into the home.
Construction Understanding
Unlike equipment-focused providers, we understand how these spaces are actually built, ensuring designs translate correctly from concept to construction.
Equipment Intelligence
With long-standing relationships in the fitness industry, we source and specify equipment that aligns precisely with performance goals and space requirements.
Turnkey Execution
From concept to installation, we manage the process with precision so the final space performs exactly as intended — with no gaps between design and delivery.
Our Approach. From Vision to Execution.
We manage every stage of your fitness and wellness space from initial concept through to final installation, developing tailored design solutions, guiding each decision with clarity, and overseeing equipment specification, sourcing, procurement, and installation. Working closely with trusted builders, electricians, millwork specialists, flooring experts, and equipment vendors, we ensure every detail is executed with precision so the final space feels intentional, performs seamlessly, and is built to last.
Recognition & Expertise
Work shaped by experience, precision, and performance
Our work is defined by the trust of our clients and the quality of spaces we deliver. Every project reflects a commitment to thoughtful design, technical accuracy, and seamless execution — creating fitness and wellness environments that are both highly functional and deeply intentional.