There are two types of standard door sizes are mostly used for home interior and exterior doors. Exterior door standard Size = 80"x 42" & Internal door size is 80" x36"
Bifold Doors, Door Size Chart, Nominal Size, Actual Size, Bifold
Design the Loading Dock: Determine Door Sizes
Standard Door Size In Feet: Main Door Size & Internal Door Size
miro./v2/resize:fit:954/0*JUa3YXcWIzuwMR
Standard Door Sizes to Get the Right Fit for Your Project
Door sizes - standard and non-standard dimensions
What is The Standard Door Height? Bedroom doors, Doors interior
What Is The Standard Door Size? All Homeowners Should Know
Chapter 4: Entrances, Doors, and Gates