The Grange Alderley Concave Trellis is an attractive lattice trellis that is designed to be used with an outdoor structure. The Alderley Concave Trellis is constructed from a pressure treated process to ensure that the wood has great longevity & is more resilient to outdoor conditions. The Grange Alderley Concave Trellis is perfect for providing your garden with more privacy by using the lattice design to intertwine plants between the diamond slats, the lattice structure also doubles up as an aesthetically pleasing partition or boundary fence panel.