Installation Guide
INSTALLATION INSTRUCTIONS
for Interior Door Slabs (JII110)
2
MATERIALS AND TOOLS
• Remove shipping materials such as corner covers, shipping blocks 
or pads.
• Inspect slab for cosmetic damage, squareness and warp.
• Verify it is the correct product (size, color, design, handing, etc.).
If any of the above conditions represent a concern, do not install the 
slab. Contact the supplier for recommendations.
NEEDED MATERIALS
Note! Follow all material manufacturers’ instructions for proper use 
and compatibility.
• Hinges
• Wood screws: 3/4" minimum through hinges into the slab and frame; 
for solid core, custom carved and stile and rail doors, 1 - 2 1/2" 
through each of the top two hinges into framing
• Wood putty/spackle
• Lockset and template
• Finishing supplies
• Masking tape (for trimming)
• 150-280 grit sandpaper
NEEDED TOOLS
• Safety glasses
• Screwdrivers
• Pencil
• Chisel or router
• Drill with bits and hole saws
• Tape measure
• Level
• Finishing tools (paint brushes, 
roller, spray equipment, masking 
tape etc.)
• Circular saw (for trimming)
• Wood plane (for trimming or 
beveling)
• Hammer
• Punch
REMOVE PACKAGING AND INSPECT SLAB
INSPECT EXISTING JAMB
1
2
• Existing jamb should 
be 3/16" wider 
than the slab and 
at least 3/8" taller. 
There should be 
enough distance 
between the jamb 
edge and the stop 
to accommodate the 
thickness of the slab.
• Verify the existing 
jamb is square. 
The (A) and (B) 
measurements 
should be the same. 
Maximum allowable 
deviation from 
square is 1/4".
A
B
D
C
E
Verify Square, Level, & Plumb
• Verify the existing jamb is level and plumb (C) and (D). The maximum 
allowable deviation is 1/8".
• The opening oor or sill must be at and level (not be crowned or 
sagged) (D).
• The face of the rough opening must be in a single plane (E) with less 
than 1/8" twist from corner to corner.
Do not install the slab unless the jamb meets the above conditions. 
Professional assistance may be necessary to correct any problems 
beforeinstallation.
FOR RETROFIT INSTALLATIONS
For retrot installations remove the old door and contact your local 
waste management entities for proper disposal or recycling of products 
being removed.
INSTALL SLAB
3
IMPORTANT: The door slab should be finished (painted or stained) on 
all six sides with an equal number of coats after all routing, trimming, 
boring and touch-up has been completed and it has been properly fit 
in the jamb. Note! If hinges are already installed on the slab, do not 
remove hinges for finishing.
Failure to finish on all six sides and install into a square, level 
and plumb condition could result in denial of warranty claims for 
operational or performance problems. See our finishing document at 
www.jeld-wen.com for finishing requirements and details.
PREPARE JAMBS AND SLAB
1. Measure the existing 
frame (not the stop) 
from oor to head 
and from side to side 
in several places to 
verify the slab will t. 
The frame should be 
3/16" wider than the 
slab (1/16" clearance 
on the hinge jamb 
and 1/8" clearance 
on the strike jamb) 
and tall enough 
(usually 1/4" - 1/2" 
taller) to allow 1/8" 
clearance on the head jamb and allow the slab to operate without 
rubbing on any ooring.
Frame
Stop




