With Small Pressure on the Ground, A Columnar Foundation Is Used. It consists of a System of Tightly Installed Pillars. Moreover, They Must BE Located At the Intersections of the Ceiling and At the Corners of the House. They Are Sometimes Made of Wood. However, Stone Anaalogues Are More Durable. IF YOU ARENTERSTEDD in Fittings of Pnd Price, The Advise You to go the Link We Specified. There you can find out the prez for pnd fittings.