13 September 2023
How to Measure for Replacement Windows + Patio Doors
Measuring your windows is a good first step toward replacing your windows. Having the measurements ahead of time can make your search go quicker. You can also learn more about the condition of your windows and whether they remain plumb and true. When you work with Marvin Replacement a project manager will measure your doors and windows. We then verify the measurements before sending the replacement window or patio door order to our manufacturing facility.
Measure Windows Yourself or Hire a Pro?
Measuring your windows doesn’t take a lot of DIY home improvement skills. While you can easily measure windows, it’s a good idea to have a professional measure them before you begin a replacement project. Our project managers accurately measure and record the dimensions of your windows so they’ll fit perfectly when we install them. We verify the height, width, and depth of each window before sending your order to manufacturing.
When you schedule a free design consultation with a Marvin Replacement consultant, they will inspect your windows to determine their condition. Our design consultants also explore all the available options for your home and answer all your questions.
Tools You’ll Need
Pen or pencil
Project time: Less than two hours, about five minutes per window
Window Terms to Know
Sash: The operating and/or stationary portion of the window that holds the glass and is separate from the frame.
Head jamb: The horizontal piece forming the top of the frame on a window or door.
Sill: The lower, horizontal piece of a window or exterior door frame that supports the frame.
Jamb: A jamb is the vertical side of a window frame.
How to Measure for Window Replacement
Window and door measurements are always recorded width first and then height.
1. Measure Window Width
For windows, measure the inside of one jamb to the other with a tape measure. The jamb is the vertical piece of trim on each side of a window. If your window doesn’t have a jamb, measure from each end of drywall. Record the measurement.
Do not include the trim in your measurement. It’s a good idea to take three measurements and use the shortest measurement. Measure twice, cut once, right?
2. Measure Window Height
For windows, measure from the sill Sill The lower, horizontal piece of a window or exterior door frame that supports the frame.
The lower, horizontal piece of a window or exterior door frame that supports the frame.GO TO GLOSSARY
3. Measure Window Depth
You don’t need to measure depth because a Marvin Replacement consultant will verify your measurements during your appointment. Window depth is tougher to measure because windows might not rest exactly at 90°.
How to Measure Patio Doors
Measuring patio doors takes just a few steps.
1. Measure Patio Door Width
For patio doors, measure from the inside of one jamb to the other with a tape measure from inside your home. Record the measurement.
2. Measure Patio Door Height
For patio doors, measure from the threshold Threshold A protective cap that covers a door sill. Typically sloped to the outside to move water away.
A protective cap that covers a door sill. Typically sloped to the outside to move water away.GO TO GLOSSARY
What to Do with Measurements
Once you’ve recorded your measurements, schedule an appointment with a Marvin Replacement expert to discuss options in a no-pressure, hassle-free in-person or virtual consultation.
When you move forward with your project, a measure technician will verify all window and door measurements before placing your order. If you’ve got Special Shape windows, we can help measure those for you.
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