The 4-foot Square is our most popular PolyGrate tree grate size and the go-to choice for new and retrofit applications. The classic starburst pattern is attractive and functional for almost any landscape environment. Provide safe and easy passage to pedestrians with our all-plastic tree grate made from post-consumer recycled plastic. At only 38-pounds, the 4-foot Square is a lightweight option that is easy to install, and will cost less than a third of comparable iron tree grates. Featuring a radial design with openings less than ½” W x 2 ¼” L, this tree grate will meet ADA compliance while maintaining a beautiful appearance for years to come.