MCN-025 4-9/16″Jamb Extension

Dimensions

• Extension Width / Depth Added: 4.5″ (114.30 mm)

• Main Body Thickness: 1″ (25.40 mm)

Note: Key profile dimensions shown above. The 4-9/16″ extension is compatible with standard 4-9/16″ door jamb profiles.

Key Features

• Jamb depth extension – Increases standard jamb depth to accommodate thicker walls

• 4-9/16″ size – Standard extension dimension compatible with common jamb systems

• Seamless attachment – Can be nailed or adhered to existing jamb edge for a continuous flush surface

• Easy installation – Cut to width on site and secure with adhesive or screws

• Paintable surface – Can be painted together with the existing jamb for color consistency

• Cost-effective – Eliminates the need for custom-built extra-thick jambs

Applications

• Door frame adaptation for insulated exterior walls (thickened walls)

• Double-layer drywall partitions or light gauge steel stud walls

• Renovation projects where existing jambs are too shallow

• Walls with tile or stone veneer that increase opening depth

• Any construction requiring increased standard jamb depth

Installation Tips

• Measure the actual wall thickness and calculate the required extension width before installation

• Cut the extension to the precise width using a tape measure and saw

• Apply wood glue or construction adhesive to the existing jamb edge

• Secure the extension with a nail gun or screws into the existing jamb

• Sand the joint after installation and paint together with the existing jamb for a seamless look