Smith System's Planner Activity Tables help you make a place where students can gather to create, invent, tinker, explore and discover using a variety of tools and materials. These versatile tables offer strength and stability for a variety of classroom activities. The Planner Activity Table by Smith System can support up to 400 lbs. The frame includes a 14-gauge steel tube crossbar to make the table even stronger. The legs are 1" square 14-gauge steel tube and include leveling glides for stability on uneven floors. These models include low range legs which are adjustable from 15" to 24" in height in 1" increments.