Of or relating to the third stage of psychosexual development in psychoanalytic theory, from about ages three to six, during which gratification is focused on sensations associated with the genital organs. The phallic stage is preceded by the anal stage and followed by the latency period. phalâ²liÂ·calÂ·ly adv.
Treads and Risers. The tread size (min 10ins / 25.4cm) is dictated by the average adult foot size, although it is not necessary to be able to fit your entire foot on a tread in order for walking up the stairs to be both comfortable and safe. The riser height (max 7Â¾ins / 19.7cm) is limited by the way in which we come down the stairs.
Width. Again, limits are probably specified in the local building code. Typically the minimum width permitted in residences is around 2 feet 8 inches. Three feet is better, and 3â²6â³ is the standard for normal occupancy. If a stair is more than 44 inches wide, a handrail is required on both sides.ncreasing the unit run even an inch or two can greatly increase the size of the staircase. With a rise of 12 feet and a unit rise of 7.2 inches, increasing the unit run from 9â³ to 11â³ makes the staircase two feet longerâprobably 6 square feet of floor area carved out of the living room.