This means only one screw can go into a stud, while the other must be inserted in drywall with an anchor bolt. The Heat Storm weighs 9 pounds, so it’s probably okay to mount in drywall ...
dwm94085 / Flickr / CC BY 2.0 The strength or PSI of concrete refers to the pounds per square inch that it can bear. PSI indicates how much weight your finished project can withstand, and based on ...