An electronic device called a stud finder can help you locate the studs but if you don t have one there are several low tech ways to find the beams using only household items.
Find studs behind siding.
In theory the siding should be nailed at the studs.
Walk very slowly along the exterior siding while holding the stud finder.
The best way to find a stud while working on on the outside whether brick siding or stone is to use an electronic stud finder.
Shine a flashlight.
The better way is to locate the edges of the osb sheathing.
For vinyl siding use a vinyl siding removal tool to unsnap the seal between two pieces of siding allowing you to see the nail heads.
Remove the section of siding at the elevation you plan on mounting the awning at.
I found these answers on a different site.
For solid cladding such as stucco or brick your best bet is to locate the studs inside the house and then transfer the measurements to the exterior wall.
A little light will go off or the finder will make a beeping noise when it finds a.
The edges must be nailed into a stud.
Once you find one stud it s easy to find the rest of them.
If that s true and i wanted to hit a stud close to dead center i d probably make myself about a 6 long 3 32 diameter drill bit locate a stud from inside and bore a hole from inside out next to the stud.
Measure 16 and mark additional stud locations.
Place the stud finder at the edge of the exterior siding.
Oh i just need to find a stud to hang this picture and fifteen holes later you re convinced the wall is held up by pixie dust and a wish because apparently there s no wood behind it.
The standard space between studs is 16 or 24 inches although in some homes the distance between studs is less regular.