The post holder is cast into concrete plinths, for example, when you build a patio or fence. Posts or planks are then attached directly to the post holder, which provides a very stable structure. It can also be attached directly to rock. Available in U and L shape. Made of flat steel and rebar that is galvanized. The reinforcement part is 20 cm long and the total length is 30 cm. The reinforcement part has a diameter of 16 mm. In the large screw holes, we recommend WAF screw or French wood screw with washer The post holder is available in three sizes: 48 mm = 45 studs screw hole 9mm + hole 5 mm for anchor screw 73 mm = 70 studs screw hole 13 mm + hole 5 mm for anchor screw 98 mm = 95 studs screw hole 11 mm + hole 5 mm for anchor screw