These 13 custom boxes were our first Planter Boxes specified to act as a security barrier. These 5,500 lb cements planters are also lined with hand laid polymer resin to protect them from any damages/staining from plants and soil. Drain holes were pre cast into the mold and go through the entire box. A Plug was created in the mold in order to create plant space. Fork lift hole were cast into the mold as well.