are made in two pieces the auger portion has a set of female threads 7 b and the vertical member 5 has a set of male threads 7 a in this way the two parts can be installed separately in this design the center hole 10 is relocated to the auger portion 5 as shown four mounting holes 6 a are provided around the perimeter of the lower portion of the vertical member 6 as shown fig4 shows the vertical member 6 with a base plate 11 placed on the bottom this plate covers the auger portion and provides some lateral stability for the vertical members two floor brackets 12 are used on each vertical member the floor brackets are made of lightweight metal each floor bracket has two triangular mounting plates 13 fig5 shows a top view of one mounting plate 13 the two plates 13 are separated by a spacer 14 the spacer has a diameter slightly larger than the diameter of the vertical member fig6 shows the spacer 14 note too that the mounting plates have central holes 15 of the same size as the spacer the spacer is designed to provide room for a standard 2 u00d7 4 piece of dimensional lumber the floor brackets are place over the top of the vertical member and are slid down until they align with the holes 8 or 9 once aligned with the proper sets of holes the floor brackets are bolted to the vertical member using fasteners common to the art with the threaded auger and vertical members the base plate 11 can be installed with a hole to allow the auger and vertical member to be screwed together alternatively the base plate 11 a of fig4 b may be used.