Conex Box Gym – The Ultimate Shipping Container Gym

Conex Box Gym – Transform a Shipping Container Into Your Ultimate Fitness Space

Turn Any Conex Box Into a High-Performance Gym

Imagine walking into your own private conex box gym—a rugged, industrial-strength fitness space built from a genuine steel shipping container. No more crowded commercial gyms, no more waiting for equipment, no more monthly fees. Just you, your workouts, and a space built to last forever.

Whether you’re a fitness enthusiast, a CrossFit athlete, a personal trainer, or someone who just wants to get strong on their own terms, a conex box gym delivers the ultimate training environment.

conex box gym

Why Choose a Conex Box Gym?

Unmatched Durability

Standard gyms are built with drywall and sticks. A conex box gym is built with 14-gauge COR-TEN steel—the same material used on ocean-going vessels. Your gym will withstand:

• Heavy equipment drops (Olympic lifts? Go for it)

• Extreme temperatures

• Humidity and moisture

• Years of hard use without wear

Complete Privacy

No judgment. No waiting. No cleaning equipment after strangers. Your conex box gym is 100% yours.

Cost-Effective

Building a traditional stick-built gym addition costs $30,000-$100,000+. A conex box gym delivers the same square footage for a fraction of the cost.

Portable

Renting? Moving? Your conex box gym moves with you. Load it on a flatbed and take it anywhere.

Quick Setup

From delivery to first workout in weeks, not months.

conex box gym

Conex Box Gym Size Options

10 Ft Conex Box Gym – Compact & Powerful

Best for: Home use, small spaces, single-user gyms

Dimensions:

• Exterior: 10 ft long x 8 ft wide x 8.5 ft tall

• Interior: Approximately 9’4″ x 7’8″ x 7’10”

• Square Footage: ~80 sq ft of floor space

What Fits:

• squat rack

• bench press

• dumbbell set (up to 50 lbs)

• cardio bike or rower

• wall-mounted storage

Perfect for: A dedicated home gym in a small backyard or side yard.

20 Ft Conex Box Gym – The Sweet Spot

Best for: Serious lifters, CrossFit boxes, personal training studios

Dimensions:

• Exterior: 20 ft long x 8 ft wide x 8.5 ft tall

• Interior: Approximately 19’4″ x 7’8″ x 7’10”

• Square Footage: ~160 sq ft of floor space

What Fits:

• full power rack

• Olympic lifting platform

• heavy bag

• cable machine

• cardio equipment

• storage for accessories

• wall ball target

• climbing rope

Perfect for: The most popular size for home and commercial gym conversions.

🔥 BEST SELLER – 20 ft conex box gym packages available!

conex box gym

40 Ft Conex Box Gym – Maximum Space

Best for: Commercial gyms, CrossFit affiliates, training facilities

Dimensions:

• Exterior: 40 ft long x 8 ft wide x 8.5 ft tall

• Interior: Approximately 39’4″ x 7’8″ x 7’10”

• Square Footage: ~320 sq ft of floor space

What Fits:

• multiple squat racks

• full free weight area

• cardio section

• functional fitness rig

• turf area

• locker room space

• office corner

Perfect for: Serious commercial operations or luxury home gyms.

🔥 Commercial pricing available – call for quote

High Cube Options – Extra Headroom

Need more ceiling height? Choose a high cube conex box:

• Standard height: 8.5 ft exterior (7’10” interior)

• High cube height: 9.5 ft exterior (8’10” interior)

Why choose high cube: Perfect for pull-ups, muscle-ups, rope climbs, and tall athletes.

conex box gym

Conex Box Gym Modifications – Build Your Dream Space

Standard Modifications

Premium Gym Modifications

Conex Box Gym Layout Ideas

Home Gym Layout (20 ft)

┌────────────────────────────────────┐
│                                    │
│  [Rack]      [Bench]    [Dumbbells]│
│                                    │
│  [Cardio]    [Mirror]   [Storage]  │
│                                    │
│              [Door]                 │
└────────────────────────────────────┘

CrossFit Box Layout (40 ft)

┌────────────────────────────────────┐
│                                    │
│  [Rig]       [Platform]  [Rowers]  │
│                                    │
│  [Wall Balls] [Bikes]    [Storage] │
│                                    │
│  [Turf]      [Heavy Bags] [Office] │
│                                    │
└────────────────────────────────────┘

Personal Training Studio (20 ft)

┌────────────────────────────────────┐
│                                    │
│  [Reception]  [Assessment Area]    │
│                                    │
│  [Training Zone]    [Equipment]    │
│                                    │
│  [Mirrors]           [Door]        │
└────────────────────────────────────┘

 Equipment That Fits in a Conex Box Gym

Power Racks & Rigs

• Full power rack (fits all sizes)

• Squat stand (great for 10 ft boxes)

• Wall-mounted rig (space-saver)

• Freestanding rig (20 ft+ recommended)

Free Weights

• Olympic barbells

• Bumper plates

• Dumbbells (up to 100 lbs)

• Kettlebells

• Weight plates storage trees

Cardio Equipment

• Treadmill (fits, but measure door opening)

• Rower (fits easily)

• Exercise bike

• Assault bike

• Ski erg

Functional Fitness

• Wall ball target

• Climbing rope (needs high cube or rig)

• Battle ropes

• Slam balls

• Plyo boxes

• GHD machine (fits 20 ft+)

Accessories

• Resistance bands

• Pull-up bars

• Dip bars

• Medicine balls

• Speed rope

Conex Box Gym Ventilation & Climate Control

Why Ventilation Matters

Working out in a sealed steel box without airflow is miserable—and dangerous. Proper ventilation is essential for any conex box gym.

Ventilation Options

Recommended Setup

For year-round comfort, we recommend:

• Mini-split heat pump (heating and cooling)

• Powered exhaust fan for high-sweat sessions

• Operable windows for natural ventilation

  

  conex box gym

 Conex Box Gym Flooring Options

Standard Stall Mats

• 3/4″ or 4′ x 6′ rubber mats

• Affordable

• Easy to install

• Good for most home gyms

Commercial Rubber Flooring

• Rolled rubber (3/8″ to 1/2″)

• Seamless look

• Better for dropping weights

• Professional appearance

Interlocking Tiles

• Easy DIY installation

• Various colors available

• Good for cardio areas

• Less ideal for heavy drops

Turf

• Perfect for sled pushes

• Functional fitness area

• Combine with rubber for hybrid spaces

 Lighting Your Conex Box Gym

Natural Light

• Windows (operable or fixed)

• Skylights (if roof structure allows)

• Translucent panels (custom modification)

Artificial Light

Pro tip: Go BRIGHT. Gym lighting should be 50-100 lumens per square foot.

 Conex Box Gym Security

Keep Your Equipment Safe

 Conex Box Gym vs. Traditional Gym Build

 Real Conex Box Gym Examples

The Garage Gym Convert

“I turned a 20 ft conex box into my dream garage gym. Painted the inside black, added LED lights, rubber flooring, and my full rack. Best decision I ever made. No more waiting for equipment at the commercial gym.” – Mike, Ohio

The CrossFit Affiliate

*”We added three 40 ft conex boxes to create our outdoor training space. Modified with roll-up doors on both ends for airflow. Members love training in the containers—it’s become our signature.”* – Sarah, Texas

The Personal Training Studio

*”I needed affordable commercial space. A 20 ft conex box with insulation, mini-split AC, and mirrors became my private training studio. Clients love the industrial vibe.”* – Dave, Arizona

 Conex Box Gym – Step-by-Step Process

Step 1: Choose Your Conex Box

• Select size: 10 ft, 20 ft, or 40 ft

• Choose standard or high cube

• Decide new vs used (Grade A recommended for gyms)

Step 2: Plan Your Modifications

• List must-haves (insulation, door, windows)

• Consider nice-to-haves (mirrors, sound system)

• Get quotes for modifications

Step 3: Purchase & Delivery

• Lock in your conex box price

• Schedule delivery (1-2 days in most areas)

• Place your container

Step 4: Modifications

• Complete structural modifications first

• Install insulation and wall coverings

• Add electrical and HVAC

• Flooring installation

• Paint and finishing

Step 5: Equip Your Gym

• Move in equipment

• Set up layout

• First workout!

 Conex Box Gym Cost Breakdown

 Conex Box Gym – Frequently Asked Questions

Q: Will a conex box gym get too hot?

A: With proper insulation and ventilation (mini-split AC recommended), temperature is comfortable year-round. Without modifications, yes, steel boxes get very hot in summer and cold in winter.

Q: Do I need a permit for a conex box gym?

A: Most areas require permits for structures over a certain size. Check with your local building department. Modifications like electrical work definitely require permits.

Q: Can I put a conex box gym in my backyard?

A: Yes—this is the most common location. Check HOA rules and local setback requirements first.

Q: How do I get equipment inside?

A: Roll-up doors or double doors allow equipment access. For standard swing doors, measure your equipment—most racks disassemble.

Q: Will dropping weights damage the floor?

A: Not with proper rubber flooring. Stall mats or commercial rubber protect the container floor and your weights.

Q: Can I connect multiple conex boxes for a larger gym?

A: Absolutely! Side-by-side or end-to-end connections create larger spaces. Ask about our multi-container modifications.

Q: How long does a conex box gym last?

A: With proper maintenance (painting every few years), 25+ years easily.

Q: Can I sell my conex box gym later?

A: Yes—conex boxes hold value well. Remove equipment and sell as a modified container, or sell with equipment as a turnkey gym.

Regional Availability – Find Your Conex Box Gym Near You

Don’t see your location? We deliver everywhere!

 Ready to Build Your Conex Box Gym?

Stop dreaming about the perfect home gym. Start building it today with a rugged, durable, affordable conex box gym.

💻 Email: [email protected]
📍 Visit our yard: – See containers in person

Ask about our complete conex box gym packages – including container, modifications, and equipment recommendations!

Conex Box Gym Packages

The Starter Package (10 ft)

• 10 ft conex box

• Basic insulation

• Rubber flooring

• Electrical (lights + outlets)

• Walk door

• Starting at $30,000

The Serious Lifter Package (20 ft)

• 20 ft high cube conex box

• Full insulation

• Commercial rubber flooring

• Mini-split AC

• 2 windows

• Mirror wall

• Electrical package

• Starting at $30,000

The Commercial Package (40 ft)

• 40 ft high cube conex box

• Premium insulation

• Commercial rubber flooring

• Dual mini-split AC

• 4 windows

• Mirror walls

• Roll-up door (one or both ends)

• Sound system pre-wire

• Exterior paint/wrap

• Starting at $30,000

Get Quote