Gender Identity. A person's internal, deeply held sense of their gender. For transgender people, their own internal gender identity does not match the sex they were assigned at birth. Most people have a gender identity of man or woman (or boy or girl). For some people, their gender identity does not fit neatly into one of those two choices (see non-binary and/or genderqueer below.) Unlike gender expression (see below) gender identity is not visible to others.
Sleeper joists are wooden boards installed on top of an existing subfloor that are typically used as support for hardwood flooring. The sleeper joists follow the same arrangement and spacing as the main home joists located under the subfloor.
1 The length of the joist span: The joist span is the distance between the two supports. The longer the span the weaker the joist will be.  Joist spacing: This is just a fancy way to say how close the joists are installed to each other. The closer they are installed to each other the stronger the floor system will be.