Installation Guide

Jamb Extender Installation Instructions

for In-swing Door

Kit includes: header jamb extender (1), extenders for hinge and lock side jamb (2), sill

extender(1).

Need for installation

: hammer, pliers, caulking gun with quality exterior sealant,

galvanized #6 fine-thread screws (2 -1/2”), galvanized finish nails ( 2-1/2”), hacksaw (to

cut for 32” door).

Instructions:

1. If the door pre-hung has brickmolds, remove the brick molds. Be careful when

removing the brickmolds since they will be reused later. Remove all nails from brick

molds.

2. Slide or snap on the sill extender to sill.*

3. Apply continuous bead of caulk around all 3 front sides of the jambs.

4. Attach jamb extenders using the galvanized finish nails at about 1” from the ends and

about 8”-10” spacing thereon. Make sure that the extender side with grooved lines are

in front and the rounded jamb edge is inside. The dadoed side of the side jambs should

mate with sill extender. *

5. Pre-drill holes at the bottom of lock and hinge jambs to match the sill extender’s screw

boss. Secure the jamb extenders to sill extender with #6 fine-thread screws.

6. If applicable, reapply brick molds to the jambs with galvanized finish nails near the

previous nail locations. The grooved lines which are marked 1/2” from the inside jamb

edge may be used to locate and align the brick molds to this line.

* For 2’-8” (32”) door, cut sill extender and header jamb extender to 32” inches.

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Jamb Extender Installation Instructions for In-swing Door Kit includes: header jamb extender (1), extenders for hinge and lock side jamb (2), sill extender(1). Need for installation: hammer, pliers, caulking gun with quality exterior sealant, galvanized #6 fine-thread screws (2 -1/2”), galvanized finish nails ( 2-1/2”), hacksaw (to cut for 32” door). Instructions: 1. If the door pre-hung has brickmolds, remove the brick molds. Be careful when removing the brickmolds since they will be reused later.