We put our products through the toughest tests so when you put them in your home, they’ll perform. That’s why Andersen products rate #1 in quality and performance.*
A proud part of Andersen’s culture is embracing individual differences and celebrating diversity. We strive for an environment where every person is safe, respected and can be their authentic self.
We drive sustainable improvements across our value chain - from the forest, to our operations, to the home, to the communities where we live and work.
Let us help you find your perfect window.
Explore options & design your own.
Let us help you find your perfect patio door.
Kickstart your project with the latest trends from style and design experts.
Explore a few of the ways we’ve helped people build, remodel and restore their homes.
Browse our photo gallery to get inspiration for your project.
Discover your perfect windows and doors.
Installed on the job. Trusted at home. Learn why contractors trust Andersen 400 Series windows more than any other.
With a wide array of standard sizing and custom sizing in 1/8" increments, rest assured that Andersen can deliver a window or door that will meet your dimensions.
Select from the tools below to find the specific size information you need.
Standard size charts, custom size information, alignment grids, measurement guides and rough opening guides.
Compare minimum to maximum width and height ranges across our product series.
Calculate dimensions including unit size, rough opening, casing size and masonry opening.