PolyGrate™ Recycled Plastic Tree Grates are the most affordable, easiest to install and maintenance-free pedestrian sidewalk tree grate solution on the market today. They have been specified for thousands of new and retrofit projects of all sizes and types by city planners, municipalities, landscape architects, contractors, civil engineers and commercial real estate developers.
New Installation: Concrete ledge shall be cast in size and configuration of specified tree grate model plus 3/8” expansion allotment. Ledge shall be 2 inches below concrete or tiled surface and extend inward 2 to 3 inches. Ledge must be level and free of bulges and slag.
Retro-Fit Installation: The PolyGrate Frame accessories will come complete with (4) 1 1/2” square pre-drilled plastic frames (42” length for use with 48” PolyGrate™, or 54” length for use with 60” PolyGrate™). Sidewalk preparation should allow 3/8” additional length per side to provide for grate expansion. Attach PolyGrate Frame to sides of poured surface with Tap-Con screws (provided) or other approved concrete fastener. The PolyGrate Frame support ledge should be placed 2” below the surface of the concrete.