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Square Sizes Available::
4', 4'-9", 5', 6', 8'
Rectangle Sizes Available::
3' x 6', 4' x 6', 4' x 8', 5' x 10', 6' x 12'

Product Overview

 The result of a productive collaboration with Peter Walker and Partners for use in their award winning Jamison Square, the aptly named Jamison design has been adopted by the design community as the new standard for a high quality, modern, pedestrian friendly tree grate.

Its clean modern rectilinear design of 1/4" openings offset by 3/8" bars seems simple, but belies the deep technical expertise needed to successfully cast this product.
Further, the products modular nature has produced some unique applications - continuously grated multi-tree planting areas, walkway decking and more.

Notable installations include University of Stanford School of Business, Dallas Performing Art Center, York Street in Toronto and many, many others.

International Symbol Of Access Tiny Conforms to ADA Accessibility Guidelines


3' PDF DWG   4' PDF DWG   4'-9" PDF DWG
5' PDF DWG   6' PDF DWG   8' PDF DWG
3' X 6' PDF DWG   4' X 6' PDF DWG   4' X 8' PDF DWG
5' X 10' PDF DWG   6' X 12' PDF DWG        


Installation Frame Information 
Material and Finish Options
Powder Coat Color Chart
Lightport Worksheet
 - Add uplighting to any tree grate
Generic CSI Specification 


100% Recycled Grey Iron ǂ, per ASTM A48 class 35b    
Ductile Iron, per ASTM A536, class 65-45-12 
100% Recycled Aluminum, per ASTM B26    
Silicon Bronze, per ASTM B26 
Nickel Bronze, per ASTM B30 

Recycled Content and Origin of Materials Affidavit


Raw Natural Finish ǂ 
Rust Conditioner - Grey and Ductile Iron Only - Additional Information 
Polyester Powder Coat - Standard color options 
Liquid Coat - Available upon request - Please provide paint color number, system number and manufacturer.
Brush - Aluminum, Bronze and Nickel Bronze Only
Polish -  Aluminum, Bronze and Nickel Bronze Only

ǂ Standard


Aztec Boston Boylston Chinook
Chinook 2000 Cobblestone Coho Eco
Fan Flat Rainbow Harris Tweed Jamison
Kiva Maple Leaf North Star Old Town
OT OT Title-24 Pavone Prospect
Raised Center Raised Rainbow Sanskrit Standard Flat
Title-24 Variations Viper