Freestanding rack on six 4″ heavy duty locking caster wheels.  Base is 33″ X 51″.  Entire unit is 88″ tall.  It easily holds 4 whitewater kayaks upright, or fewer boats with gear.  Extremely solid and stabile.  Constructed of silver powder coated 2″ square steel.  Rolls easily when loaded too.  All uprights accept shelf supports, making hanging wet gear really easy.  This is a great space saver.  Clean up that garage and make room for more boats!  Message me for pictures or more information.