Gym construction in Criciúma: what the structure needs to withstand

Updated on 07/06/2026 by EZA Engenharia

Building a gym in Criciúma is not like putting up a store or an office. The building will take concentrated weight, constant vibration and a nonstop flow of people, and that changes decisions that seem small on paper but weigh (literally) on the project. EZA has built and expanded commercial properties in the region for more than 35 years, from design to execution, and has seen up close where these projects tend to come undone when the planning does not look at the right detail. This text brings together what really matters: structure, flooring, ventilation, locker rooms and accessibility.

Structure designed for the weight of equipment, not just people

Every ordinary residential or commercial project is calculated for a standard use overload: people walking, furniture, shelves. A gym is another category of demand entirely. A loaded squat rack, a stack of weight plates, a treadmill in continuous motion: this is concentrated load and dynamic load at the same time, and the structure must be sized for both.

At EZA, this calculation is part of the structural design from the very start, not a last-minute adjustment. It makes a difference to know, before finalizing the floor plan, where the free-weights area will go, where the group-class studio with jumping and floor impact will go, and where the machine-based weight training will go. Each of these zones calls for a different structural approach, and that is what prevents cracks, excessive vibration on the floor above (in buildings with more than one story), or an emergency reinforcement two years after opening.

Flooring: what withstands a dropped weight plate is not the same as what withstands aerobics jumping

Some gyms get the floor wrong by cutting costs in the wrong place. A poorly executed subfloor cracks under the repeated impact of falling weights, and a rubber flooring of the wrong thickness does not absorb enough vibration to protect the slab. These are different problems, different solutions, and each area of the gym calls for its own.

In the free-weight room, the subfloor needs to withstand repeated point impact. In the group class room, what matters most is vibration absorption and comfort for those who train barefoot or in light sneakers. In circulation and reception areas, durability under constant traffic and ease of cleaning come into play. Defining this together with the structural design, and not after the project is already built, is what ensures the floor lasts and stays safe over time.

Ventilation and climate control: a room full of people training generates real heat

A gym packed at peak hours generates a volume of heat and humidity that most commercial projects never have to consider. Without a proper ventilation design, the space gets stuffy fast, the mirror fogs up, and the client feels firsthand that the space was not designed for heavy use.

This involves sizing the exhaust, planning points for climate control (whether air conditioning or mechanical ventilation) and thinking about ceiling height and air circulation already in the electrical and plumbing design phase, because air ducts and electrical infrastructure need to work together without fighting each other inside the ceiling. When this is decided early, the installation is cleaner and cheaper than doing a retrofit after the gym is finished and running.

Locker rooms and support areas: where the project decides whether the gym client comes back or not

A poorly sized locker room is a guaranteed complaint. Not enough showers for peak hours, weak ventilation that leaves the space too humid, a locker in the wrong place that blocks circulation: all of this is a design decision, not a finishing detail.

EZA treats the locker room and support areas (reception, pantry, fitness assessment room, storage) as part of the overall sizing of the project, calculating the ratio of stalls and showers to the expected number of members and planning plumbing with flow and drainage compatible with simultaneous use. Planning for this in the design avoids corrective work with the gym already running, which is always more expensive and more disruptive for those who depend on that space to earn a living.

Accessibility is not optional, and when well executed it is also good space management

Every commercial building for collective use in Criciúma and the region must comply with accessibility standards, and a gym is no exception: an accessible route to the reception, an adapted locker room, corridor width compatible with a wheelchair, floor covering that does not become a slipping hazard.

The point many people don't realize is that designing accessibility from the start costs less and uses the space more intelligently than adapting it later. A ramp planned in the original floor plan blends into the design; a ramp tacked on afterward becomes a visual and structural obstacle. EZA has already applied this logic in commercial projects such as Hotel Centenário and the SATC commercial project, where accessibility and the flow of people needed to coexist without creating a bottleneck.

Building a gym seems, at first glance, a simple project: a big room, a mirror, rubber flooring. In practice it is one of the commercial projects that most demands coordination between structure, installations, and finishing, because the building will carry weight, vibration, sweaty people, and machines running every single day. EZA has already done this kind of calculation on projects such as Clínica Miocuore and the Werner Backes Advogados office, where every square meter also had to serve a specific function. If you have the plot, the warehouse, or the project of a gym in Criciúma, Içara, Forquilhinha, Nova Veneza, Cocal do Sul, or Balneário Rincão in mind, it is worth talking before finalizing any plan. Reach out on WhatsApp (48) 99191-2018 or send an email to [email protected]. We sit down, look at the existing structure or the plot, and put together a plan that withstands the weight a real gym demands.