The 420ADA Desk by USA Capitol is an ADA Compliant, wide-top work desk. This desk comes with specially-designed leg inserts that allow the desk to be adjusted up to 34 inches, which provides enough space beneath to accommodate most wheelchairs. The legs also adjust in 1-inch increments, so you can be sure to set the work surface to the exact high of any special-needs ADA students. The 16 gauge tubular U-brace is inserted into punched holes in the rear legs and welded to all four legs. Minimum 9" of total weld. Frame is chrome plated after all weld-ing is complete