New Commercial Landscape Design by JETT. We are proud to share our recently-constructed designs for the new Golden State Lumber sales yard in Concord, CA. Our designs called for exquisitely detailed iconic lumber industry references using sluiceways to channel stormwater, large river cobble in wire mesh cages and a laser-cut metal fence inspired by a cross-cut log section. Final detailing and implementation of our designs was completed by Camp & Camp Associates. Architecture by MBH Architects.