Help define any outdoor space with the Arbor - Pergola. With latticed sides this is a great pergola for training vines on.The "door" to your garden opens here. The Pergola Arbor adjusts to open from 36", 42", to 48" wide. Made of western red cedar, this arbor is built to last for many years of enjoyment. This arbor is brought to you by Rustic Natural Cedar, a 30 year old company that offers a 5 year limited guarantee. All of Rustic Cedar's pieces, such as this arbor, are mortise and tendon joinery and easy to assemble with household tools.