What trade uses a pattress or pattress box?
Pattress Pattress A pattress or pattress box is the container for the space behind electrical fittings such as power outlet sockets, light switches, or electrical fixtures. Pattresses may be designed for either surface mounting (with cabling running along the wall surface) or for embedding in the wall or skirting board. Some electricians use the term "pattress box" to describe a surface-mounted box, although simply the term "pattress" suffices. The term "flush box" is used for a mounting box that goes inside the wall, although some use the term "wall box". Boxes for installation within timber/plasterboard walls are usually called "cavity boxes"
Pattress or "plasterboard boxes". A ceiling-mounted pattress (most often used for light fixtures) is referred to as a "ceiling pattress" or "ceiling box". British English speakers also tend to say "pattress box" instead of just "pattress". Pattress is alternatively spelt "patress" and Wiktionary lists both spellings. The word "pattress", despite being attested from the late 19th century, is still rarely found in most dictionaries. It is etymologically derived from "pateras" (Latin for bowls, saucers). The term "pattress" is not seen in the United States or Canada, where the equivalent terms are wall box, switch box, electric box, etc. A pattress may