The download section is at the bottom of this page.
The zip file contains 4 wavefront .obj files.
In Daz studio, use File / Import / Wavefront Object ( .obz, .obj )
I suggest using an import scaling factor of 30000% which gives you 15cm X 15cm tiles
Each panel in mcjTiles6X10.obj is about 5000 polygons ( quads )
mcjTilesOne.obj is one tile, 85 polygons
mcjTiles6X10LowPol.obj is a low-polygon-count version, 300 polygons
mcjTiles6X10LowPolOne.obj is one low-poly tile, 13 polygons
mcjTiles6X10LowPol converted to a subD surface looks great, remember to set "Edge Interpolation" to "Edges and corners" in the parameters tab
to get shiny mirror surfaces i used Marianne Gilliand's Supershine shaders