This Superior White Kingston arbor is installed using aluminum C-channel supports. The supports are concreted in the ground leaving 6 - 8" above ground to slide into the arbor posts. The arbor is then secured to the supports with screws. Arbor can be assembled to have a 50" or 66" wide opening between the inside of the posts. Unit is shipped unassembled. Complete illustrated instructions make installation fast and simple. Assembly requires no special skills or tools! This arbor will make a nice addition to any garden area. A pointed finial tops each of the four, upright posts, adding striking height to the unit, and the white color captures attention with ease. Made from lasting vinyl, this structure easily withstands exposure to the elements without rotting, cracking, or peeling. The included anchors secure the arbor in your lawn, keeping the unit stable and perfectly positioned. Majestically frame a medium or large walkway with this White Kingston Arbor. Assembly required. Made in the USA. Limited lifetime warranty.