How to Measure Rough Opening for New Construction Windows

How to Measure Rough Opening for New Construction Windows?

Introduction

Installing new construction windows requires precise measurements to ensure a proper fit and optimal performance. The rough opening, the space in the wall frame where the window will be installed, must be accurately measured before ordering or installing windows. This article provides a step-by-step guide on how to measure the rough opening for new construction windows.

Preparing for Measurement

Gather Necessary Tools

To measure the rough opening, you will need a tape measure, a level, a pencil, and a notepad for recording measurements. Ensure that the tape measure is long enough to span the entire opening.

Clear the Area

Remove any obstructions or debris around the window area. Ensure that the space is clean and accessible for accurate measurement.

Measuring the Rough Opening

Width Measurement

Measure the width of the rough opening at three points: the top, middle, and bottom. Use the tape measure to span the distance horizontally between the two vertical sides of the opening. Record all three measurements.

Height Measurement

Measure the height of the rough opening at three points: the left side, the center, and the right side. Measure vertically from the bottom sill to the top of the opening. Record all three measurements.

Check for Squareness

Use a level to check if the corners of the rough opening are square. Measure the diagonals of the opening from corner to corner. If the two diagonal measurements are equal, the opening is square.

Recording and Using Measurements

Record the Smallest Measurements

When ordering windows, use the smallest width and height measurements to ensure that the window will fit into the rough opening. It’s important to have a little extra space for shimming and adjustment during installation.

Consider Manufacturer Recommendations

Refer to the window manufacturer’s recommendations for the rough opening size. Some manufacturers require additional space around the window for proper installation and insulation.

Conclusion

Measuring the rough opening accurately is crucial for the successful installation of new construction windows. By following these steps and using the smallest measurements, you can ensure a proper fit and avoid potential issues during installation. Always consult the window manufacturer’s guidelines for specific requirements related to the rough opening size.