The XT Series frame kits are our extremely heavy duty line of table frames that are used in high altitude locations withstanding over 20' of snow! These end frames are designed as a one-piece welded construction, fabricated from 2.375" O.D. steel tube with 2" x 2" x 1/8" die formed steel angles for attaching the seats and tops. This table frame design incorporates nontip, nontrip, walk-through design features with bends that are tightly formed to prevent tipping when all of the weight is on one side. Nominal table height is 30". Nominal seat height is 18". This table frame kit is used by the National Park Service all across the USA and is proudly manufactured in the USA.