Ask the Experts | Ask the Door Guys | Jamb Depth vs. Wall Thickness/Throat

What is the difference between jamb depth and wall thickness or throat?

When referring to jamb depth we are talking about the overall width of the jamb, which is normally 1” larger than your wall thickness (frame throat size).  Standard profile pressed steel frames have 1/2″ returns on either side of the frame which is why the jamb depth is larger.  When ordering frames always specify if your dimension is the wall thickness or jamb depth to avoid mistakes!


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