Three Quarter Inch 3/4″ (21mm) Electrical Conduit Dimensions

Three Quarter Inch 3/4″ is the trade size, not the actual dimension of electrical conduit.  Twenty One 21 is the metric designator not the...

Electrical Conduit Hole Saw Sizes

Dear Mr. Electrician: I plan to install a lot of electrical conduit.  I know that I will need to drill with hole saws or...

Five Inch (129mm) Electrical Conduit

Five Inch 5″ is the trade size, not the actual dimension of electrical conduit.  One hundred twenty nine 129 is the metric designator not...
A metal outlet box installed on wood lathe using small wood screws.

Install an Electrical Receptacle Outlet in an Existing Wall

Dear Mr. Electrician: I want to install an outlet on a dedicated circuit for my window air conditioner.  I've got it figured out how...

One Inch (27) Electrical Conduit Dimensions

One Inch 1″ is the trade size, not the actual dimension of electrical conduit.  Twenty seven 27 is the metric designator not the actual...

Three and a Half Inch (91mm) Electrical Conduit Dimensions

Three and a Half Inch 3.5" is the trade size, not the actual dimension of electrical conduit.  Ninety 0ne 91 is the metric designator...