Flexo drain boards are a lightweight, high strength modular Flexo drain boards which is especially designed for sub-surface drainage and waterproofing membrane protection. Flexo drain boards are manufactured from high strength polypropylene and are used in various applications like terrace gardens, planter and podium systems, basement retaining walls, landscape decks, pond filtration systems, sports fields, agri - horti applications etc. Flexo drain boards offers architects and developers extensive design flexibility and has a wide range of applications in the landscape, building and construction industries. These Flexo drain boards are 13mm and 20mm in height and are easy to install, by interlocking them horizontally and vertically. The Flexo drain boards also acts as a protection layer over waterproofing membranes, and also creates a thermal insulation barrier .The open surface design and high internal void volume enables the rapid capture and transport of high water volumes. The Cups designed in the Flexo drain boards can store little water also. The roots of plants and grass can take this water through Capillary action and will help in the growth of these plants.