How To Find A Stud?

It’s EASY to Find Studs WITHOUT A STUD FINDER!!!!!

Studs are basically 16″ apart (center to center). Some are 24″ spacing.
You won’t be able to find every studs in the wall. Sometimes the layout is off, or it changes somewhere down the wall.
Lath and plaster walls (板條和灰泥牆): don’t pound on the wall, you might loosen the plaster

NOT about listening to the change of sound.
IT IS to feel the difference: hard (hurt your fist) or hallow.
Pound the wall and feel it. If feeling hard and identify it as a stud, tape it to mark it.
Mark it on the top of sole plate (not on base board).
Hammer a nail into wall: (1) all the way through—not a stud; (2) move to the right or left (pound and feel it) 1″ apart and hammer the nail again, get stuck—find a stud

An electrical box is almost always mounted to a stud.
If there are two outlets (e.g., one for power and one for phone)—the stud is in the middle of the two outlets.
If there is only one stud: (1) pound the wall and feel; (2) look for a screw pop; (3) use a magnet to look for a screw pop—if it stays, that’s a screw pop

Source: https://www.finehomebuilding.com/2017/09/13/split-jacks-framing-window-opening

Source: https://basc.pnnl.gov/resource-guides/advanced-framing-minimal-framing-doors-and-windows#edit-group-training

Wood Wall Window Framing are commonly constructed with window openings having widths between 18”-60” (45.7-152.4 cm), opening heights of 24”-84” (61-213 cm), and header heights of 3”-12.75” (7.6-32.4 cm). In general, wood stud walls are constructed with stud sizes of 3.5”, 5.5” (8.9, 14 cm), stud spacings of 16”, 24” (40.6, 61 cm), and typical heights between 8’-12’ (2.44-3.66 m).
Source: https://www.dimensions.com/element/wood-walls-framing-window

Source: https://www.istockphoto.com/photo/electrical-wiring-through-studs-gm117540931-7927346

Source: https://www.cablinginstall.com/home/article/16465507/plan-cable-runs-during-rough-in-to-avoid-electrical-problems