CrossFit plyo boxes are made from several common materials: steel frames, various plastics/PVC, wood cores, and high-density foam covered with PU or PVC.
Common height configurations include single boxes at 12", 18", and 24" and modular 3-in-1 (stackable) options such as 16", 20", and 24". Some descriptions also list taller options up to 30".
Plyo boxes are used for box jumps, step-ups, push-ups, dips/tricep dips, squats and other plyometric or conditioning movements for full-body training.
Many listings emphasize compact, lightweight designs that can be stacked or broken down for space-saving storage, making them easy to move and tuck away when not in use.
Construction ranges from heavy-duty steel tubing with powder-coated finishes to wood cores wrapped in foam and vinyl/PVC. Steel boxes prioritize durability and higher load capacity, while wood-core and foam-wrapped boxes offer more shock absorption and a softer landing surface.
Foam and PVC/PU-covered boxes are described as waterproof or having smooth covers that can be quickly wiped down; some models have removable covers (hidden zipper) for deeper cleaning.