Instructions / Assembly
MEASUREMENT GUIDE
for Double-Hung Sash Replacement Kits (JMI002)
Thank you for choosing a JELD-WEN Wood or Clad Wood Double-Hung Sash Replacement Kit. Please read this document fully before beginning.
Consult your local building code ofcial for applicable codes and regulations (particularly regarding minimum egress requirements). The installation
of a replacement window will not eliminate installation or maintenance problems with an existing window. Problems such as wood decay and
water leaks around the existing frame must be investigated and xed prior to installing replacement sashes. Windows produced to user specied
dimensions cannot be returned. Be sure the provided measurements are correct.
• Aminimum33/8"widejambdepth(“opening”)mustexistfor
replacementjambliners).
• Iftheexistingwindowsillisnotlevel,oriftheexistingwindowisnot
squareandplumb,installationmaybecomplicatedandadditionaltrim
work may be needed during installation. Consider professional installation
assistance.
• Usetheworksheetonthebacktorecordmeasurementsforeachwindow
tobereplaced.Useadditionalcopiesasneededformorewindows.
• Recordeachwindow’slocationinthehouseontheworksheetinamanner
that clearly identies it.
• Ifthereismorethan1/8"deviationwithineachsetofmeasurements,
investigate the cause and seek professional assistance to correct problems.
• Performallmeasurementsoneachwindowbeforegoingtothenext
window.
• Individuallymeasureeachexistingwindowtobereplaced.Donotassume
similar looking windows are exactly the same size.
• Measureaccurately,tothenearest1/8".
IMPORTANTINFORMATION
•Measurethewidthbetween
thesidejambs(woodsurfaceto
wood surface) in three places:
top,middleandbottom.
•Temporarilyremovejamb
liners if necessary and avoid
anystops,weatherstrip,
balancecords,pulleys,etc.
•Recordyourmeasurements.
MEASURETHEWIDTH
1
CONFIRMSQUARENESS
OFEXISTINGWINDOW
3
•Conrmtheexisting
window is square by
measuring both diagonals.
If the two diagonal
measurements differ by
morethan1/4",anout-of-
squareadjustmentinthe
width of the window must
be made.
•Theadjustmentis
determined by creating
a plumb line (using a
level) from each corner to
thesillorhead.Usinga
plumb line that falls within
thewindowopening,
measure the out of square
adjustment.
•Subtractthismeasurement
from the smallest width
measurement. Record
thisadjustedwidthasthe
smallest width.
MEASURETHEHEIGHT
2
•Slightlyopenbothsashes
and thread the tape measure
between the sashes.
•Atthetop,measuredirectly
fromtheheadjamb,avoiding
anystops,weatherstripand
liners.
•Atthesill,measuretothe
top of the sloped sill on the
exterior side of the lower sash.
•Measuretheheightattheleft
side,middleandrightside.
•Recordyourmeasurementson
the attached worksheet.
Adjustment
Head
Sill
Wood side
jamb
Wood side
jamb
Interior stop
Parting stop
Exterior stop
Jamb depth
min.33/8"
Measuring
locations
Head
stop
Head
jamb
Upper
sash
Exterior
Lower
sash
Sloped
sill
Measure
between
sashes
Measuring
locations
JELD-WEN reserves the right to change product specications without notice. Please check our Web site, www.jeld-wen.com for current information.
©2011 JELD-WEN, inc. | JELD-WEN and Reliability for Real Life are trademarks or registered trademarks of JELD-WEN, inc., Oregon, USA.
Head
Sill