Mast climbers are powered lift platforms that climb vertical masts attached to building facades. Maximum heights typically exceed 200 feet. Typical rental costs range from $100-$400 per day depending on height. Platform capacities typically range from 2,000-4,000 pounds (20-40 workers). These lifts are ideal for facade work, window installation, and curtain wall construction. Platforms move vertically on mast rails with minimal space requirements. Modern mast climbers include safety features: automatic descent systems, load sensors, and emergency braking. Operators require training and certification. Mast climbers are significantly more efficient than suspended scaffolding for tall buildings. Electrical power is required; single-phase or three-phase depending on model.