this video will show you how to replace a window using an Anderson 100 series single hung window installation requires a flat frame opening in this video we will be replacing a wood double hung window with counterweights to understand the process for installation watch the full video and identify how to prep your frame before beginning window installation before you begin verify that your existing window frame is in good condition free
from damage or rot next check that your window is square if corner to corner measurements differ by more than one-eighth of an inch you may need to consider full frame window replacement to find the size of the unit that you will need to order for installation measure your existing window frame you'll need to collect measurements for the width and height measure the width at the top center and bottom then use the smallest measurement rounded
down to the nearest one eighth of an inch next for the height measure at the uppermost part of the sill at the left Center and right then use the smallest measurement rounded down to the nearest one eighth of an inch this video supports an installation guide from Anderson windows calm and may not be appropriate for all products please read and follow that written installation guide for your product for complete installation instructions including important safety information the installation
guide contains a list of tools and materials needed to install your window you will also need a 100 series single hung replacement window without flange the installation screw pack included with your new window and if the window opening has a slope cell a sill adapter which can be purchased separately if the glass in your old window is broken...
See more here: https://www.youtube.com/watch?v=qScSJ5akLJA