Therma-Tru SHOP 3 Door Preparation - U1 Revised - Manual (Page 18)

Door
Preparation
3.18 2014 (U1 REVISED) Shop 3
Hinge Preparation
(Except 90 Minute Steel Fire Door)
Mark and Cut Mortises
Use a special-purpose machine or a
router and template.
4.015”
.112”
R .625”
or
R.250”
4.015”
.112”
1.375”
Pass-Through
Full Mortise
CAUTION:
Full mortises require pilot holes only
if door has hardwood stiles. Refer to
SHOP 3 - Hinge Installation,
for instructions.
Adjustable
Door
Edge
3.654”
R .625”
.625”
Deep
.354”