Total cost: $20,000-$60,000 for a workout-ready container gym (container + insulation + climate + flooring + electrical + equipment). Build time: 2-4 months. The big budget item is climate control — gyms need oversized AC because human bodies generate substantial heat during exercise.
One-Trip 40ft High-Cube — the height matters for full-extension exercises (overhead press, jumping rope, pull-ups). 20ft High-Cube works for cardio-only setups.
Rubber matting over plywood subfloor. Cheap; $300-$800 for a 40ft container. Protects the container floor and reduces equipment noise.
Closed-cell foam on walls + ceiling. Then OVERSIZED mini-split — 12K-18K BTU for a 40ft (vs. 9K typical for office). Don't under-spec; gym heat is real.
Two louvered vents (high + low) for cross-flow. Helps with humidity from sweating. Optional ceiling fan for circulation.
Dedicated circuits for cardio equipment (treadmill, elliptical, rower). Standard outlets for lighting + fans + speakers. 60-100A subpanel sufficient.
Rack + bench + plates + dumbbells. Mirrors on one wall (light reflection). LED panel lighting overhead. Speakers (Bluetooth or wired).
We sell containers, we don't build conversions — but the right starting container makes every step downstream easier. Here's what to pick.
Tell us your project — size, finish level, climate. We'll match the container shell that makes your conversion easier. We don't build the conversion; we make sure you start with the right shell.
Call (845) 343-0700(845) 343-0700
Mon–Sat · 7am–7pm ET · Real humans, no call center
