In scientific classification of biota, a subphylum is a taxonomic rank in zoological nomenclature. The taxonomic rank of 'subdivision' in fungi and plant taxonomy is equivalent to 'subphylum' in zoological taxonomy.
Another general rule is that your driveway should be around 10 to 12 feet wide, and a few feet wider at the curves. If you have space, itâs always a good idea to provide a larger area at the top for turning around or for additional parking when needed. A 12âx18â space or larger is ideal for this.
Originally Posted by Pecos. If the driveway is 30 feet long and an average of 21 feet wide (12 at the top and 30 at the road leaves about 21' at the midway point), then at just 4 inches thick it figures 7.7 yards of concrete.