POST ON BUIDING ARE REALLY TWO 5 INCH PIECES OF PIPE PUT INTO CHIMNEY BLOCKS THREE FOOT IN GROUND THEN FILLED WITH PEA GRAVEL. THE WOODEN BOXES WERE MADE TO GO OVER THEM WITH ONE SIDE SCREWED TOGETHER SO THAT THE CAN BE TAKEN APART IF NEEDED.WIRING WAS RUN UP INSIDE THESE BOXES FOR THE PUMPS AND SOCKETS WE PUT INTO CEILING THEY ARE THEN BOLTED WITH A 5/16 BOLT ON TWO SIDES SO THEY WONT SPIN ON STEEL POST. THE OUTSIDE BOXES SET ON FLAT STONE BUT REALLY DO NOT CARRY WEIGHT OF AWNING