The New England Pergola Bracket System-Set of 4 makes it easy for you to mount a vinyl pergola or arbor onto a wood deck or cement patio. Specially designed to fit the Bellagio Pergola or the Venetian Pergola from New England Arbors, these four brackets stabilize the four main posts of the pergola. The brackets are made from weather-resistant premium high-grade vinyl in a bright white color to match the pergolas. To install this system and create a reliable foundation for your pergola or arbor, simply measure the footprint of the pergola and lag bolt the brackets into place on your deck or concrete patio. Insert 4- x 4-inch pressure treated wood posts that are 7 feet tall (purchase separately) into the brackets and screw them in place. Slide your pergola posts over the wood posts, and screw the pergola posts into the wood. The result is a lasting installation that is safe and rigid. The vinyl components of this system carry a 20-year manufacturer"s warranty to ensure many years of dependable use. About New England Arbors The world"s leading manufacturer of premium vinyl arbor kits, New England Arbors was founded in a simple barn in the late 1990"s. There the founders began replicating the beauty of New England design with simple, low-maintenance vinyl materials. The business has grown since then, now supplying arbors and trellises all over America and beyond. With headquarters in Port Huron, Mich., and Sarnia, Ontario in Canada, New England Arbors is dedicated to the creation of the most attractive and durable vinyl arbors possible. * Set of 4 brackets to stabilize pergola posts * For mounting on concrete or wood surface * Designed for the Bellagio or Venetian Pergola * Made from weather-resistant premium vinyl * Includes hardware and detailed instructions * Requires 4 pressure treated wood posts (not included) * 20-year manufacturer"s warranty * Each bracket measures 4L x 4W x 4H inches