GANTRY SKIP FILTRATION WIERS. 3.3 cubic meter skips, custom fabrication from 12 & 15mm HMPE, fully extrusion welded and tested. These units have been sent down to help with the rebuild of Christchurch. Designed by PFP09 to meet the needs of one of NZ’s largest construction companies. Company brief was to design and fabricate a robust, lightweight gantry skip which can also be primarily used to filter sediment from the companys construction sites in Christchurch. Gantry bins custom built to your specific needs, colours to suit, quantaties apply. UV stable, lightweight, Ecofriendly, quiet, low maintenance, no painting, wont rust, keeping NZ green. See our other products from boat diesel tanks, through to septic tanks, boats, pontoons, jetties, filtration units, septic treatment tanks, refrigeration tanks and one off custom builds.