Sizes vary by style. Fixed (non-adjustable) stools commonly list overall seat heights around 13.8–17.5 inches. Adjustable or wobble stools typically provide a floor-to-seat range of about 16.5–24 inches. Overall widths and depths span compact options of about 12–14 inches up to wider storage-bench dimensions.
Adjustable and wobble features are most common on active-motion/wobble stools. These typically offer 360° flexible wiggle motion plus a height-adjustment mechanism (often a gas-lift system) with a floor-to-seat range around 16.5–24 inches.
It varies by product. Some stools arrive ready to use with no assembly and are lightweight or stackable for easy moving and storage. Others require adult assembly (tools are often provided) and may be heavier or bulkier depending on materials and added features.
Storage benches add internal compartments or a removable lid for toys and clothes, often include safety features like safety hinges or side grooves to prevent pinching, and commonly have padded upholstered tops for seating. Some storage benches also list higher top weight capacities than standard stools.