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Aluminum
Extruded aluminum is well-suited for making low-maintenance, long-lasting windows and doors. Featured on Ultimate collection exteriors and Modern collection interiors.
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Proprietary Ultrex® fiberglass is featured on Vivid and Elevate exteriors and Essential interiors and exteriors. Products in the Modern collection feature unique High-Density Fiberglass exteriors.

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The natural beauty of wood is stunning in almost any space. Natural wood interiors with a variety of finishes are offered on Ultimate and Elevate products.

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Replacement Windows

Marvin Awning window product rendering
Awning
Marvin Bay-Bow window product rendering
Bay and Bow
Marvin Casement window product rendering
Casement
Marvin Corner window product rendering
Corner
Marvin Double Hung window product rendering
Double Hung
Marvin Glider window product rendering
Glider
Marvin Picture Direct Glaze window product rendering
Picture/Direct Glaze
Marvin Single Hung window product rendering
Single Hung
Marvin Specialty Shapes window product rendering
Specialty Shapes
All Windows
Marvin Bi-Fold door product rendering
Bi-Fold
Marvin Commercial door product rendering
Commercial
Marvin Entry door product rendering
Entry
Marvin Interior door product rendering
Interior
Marvin Lift and Slide door product rendering
Lift and Slide
Marvin Multi-Slide door product rendering
Multi-Slide
Marvin Sliding door product rendering
Sliding
Marvin Swinging door product rendering
Swinging
All Doors
Close up of Aluminum materials
Aluminum
Extruded aluminum is well-suited for making low-maintenance, long-lasting windows and doors. Featured on Ultimate collection exteriors and Modern collection interiors.
Close up of fiberglass material
Fiberglass

Proprietary Ultrex® fiberglass is featured on Vivid and Elevate exteriors and Essential interiors and exteriors. Products in the Modern collection feature unique High-Density Fiberglass exteriors.

Close up of wood materials
Wood
The natural beauty of wood is stunning in almost any space. Natural wood interiors with a variety of finishes are offered on Ultimate and Elevate products.

All Products

Product Design Options

Replacement Windows

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Ultimate

Realize unique visions with endless design possibilities, each meticulously crafted.

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Modern
Achieve authentic modern architecture with expansive views and strong thermal performance.
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Vivid
Complement transitional to contemporary architecture with dramatic sizes, durability, and energy efficiency.
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Elevate

Find the most in-demand traditional window and door types with natural wood interiors and Ultrex® fiberglass exteriors.

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Essential
Choose from a streamlined selection featuring proprietary Ultrex fiberglass inside and out.

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Coastal + Impact

Meet building codes and stand up to the harshest conditions with impact-rated products.

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Historic
Discover standard and one-of-a-kind solutions to meet your historic project needs.
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How to Measure for Replacement Windows & Doors

All you need to start the process of getting a quote for window and door replacement is a tape measure, a helper, and our handy tracking form.

Do you need a prybar to open your windows? Is your door threshold wobbly and rotten? Does the wind blow your curtains around even when your windows are closed? If you can relate to any of these scenarios, it may be time for new windows and doors.

In the past, buying new windows and doors meant you might have set up meetings with a few different sales reps and invited them into your home to measure and discuss design options and pricing. These days, though, a digital meeting might be a better option to discuss the window replacement process. But where does this leave you when you still need to know the measurements of your windows and doors to get a realistic quote? You can do your own measuring, and it’s really quite simple. Here’s how:

Enlist a Helper

Measuring windows and doors can be a one-person job, but it will go a lot faster with a helper. Have your helper record the measurements as you go in this convenient printable form (Spanish version). To avoid a mistake, after you read the measurements, have them read the numbers back as you double check the dimensions. It’s also handy to have a helper hold one side of the tape measure when measuring larger windows and doors.

How to Measure for Replacement Windows

You don't need to be an expert or even know the parts of a window to measure your own before embarking on the replacement process. It’s just two easy steps:

1. Measure the Width

From the inside of your home, use a tape measure, and measure the distance from the inner edge of one side jamb to the other. The side jamb is the vertical piece of trim on each side of the window. If your window is finished with drywall instead of jambs, simply measure the distance between the drywall on each side.

2. Measure the Height

Measure the distance between the sill of the window and the head jamb. The sill is the lowest horizontal piece of trim. If your window is finished with drywall at the top instead of a head jamb, simply measure up to the drywall. Round up to the nearest inch and record your measurement.

How to Measure for Replacement Doors

It’s almost exactly the same for measuring doors for replacement, though the parts of a door are slightly different than those of a window.

1. Measure the Width

From the inside of your home, use a tape measure, and measure the distance from the inner edge of one side jamb to the other.

2. Measure the Height

Measure the distance between the threshold and the head jamb.

Don't Worry

What if your measurements are not perfect? Don’t worry, if you do decide to choose Marvin for your home improvement project, a friendly and knowledgeable window and door expert will confirm all measurements before ordering your new Marvin windows and doors.

Don't have a Marvin dealer yet?

Visit our find a dealer tool or call 1-888-537-7828 to find a Marvin dealer near you.

Download Our Measurement Tracking FormDownload Our Spanish Version Here

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Company
CareersOur StoryIn The NewsInfinity By MarvinInfinity ReplacementTruStile
Support + Resources
Support CenterFor ProfessionalsTechnical SpecificationsEnergy DataProduct LiteratureGlossary of TermsWarrantiesCare and Maintenance
Where to Buy
Find a DealerInternational DealersReplacement Solutions
Email Sign Up
Privacy StatementTerms of UseCalifornia Users/Privacy

© 2026 Marvin