Measuring windows and doors accurately is crucial for ensuring a perfect fit and optimal performance when prepare a door/window customization or replacement. Here’s a simplified guide to help you measure correctly:
General Measurement Principles
Before you begin, keep these key techniques in mind:
- Always measure the rough opening, not the existing frame.
- Measure at three points: top, middle, and bottom.
- Use the smallest measurement as your final reference.
- Subtract a small allowance (typically 1/4 to 1/2 inch) to allow for installation adjustments.
Window Measurement Steps
Width Measurement:
- Measure horizontally between the inside of the wall studs or window jambs.
- Take measurements at the top, middle, and bottom of the window opening.
- Use the smallest width measurement.
- Subtract approximately 1/4 to 1/2 inch for fitting space.
Height Measurement:
- Measure vertically from the windowsill (base) to the top of the window opening.
- Take measurements on the left side, center, and right side.
- Use the shortest height measurement.
- Subtract 1/4 to 1/2 inch for installation adjustments.
Depth Measurement:
Measure from the inside trim to the outside edge of the exterior trim (or blind stop strip). Ensure there is at least 3 ¼ inches of depth available for most standard replacement windows.
Door Measurement Steps
Width Measurement:
- Measure inside the door frame at three points: top, middle, and bottom.
- Use the widest measurement to determine door width.
- Standard door widths typically range from 24 inches to 36 inches.
Height Measurement:
- Measure vertically inside the frame from top to bottom.
- Consider floor coverings like carpet or tile when measuring.
- Standard door heights are usually 6’6″ (1981mm).
Depth Measurement:
Measure across the depth of the frame (from front to back). This is important for pre-hung doors or full door system replacements.
Special Considerations
Some windows and doors have unique designs that require special attention:
- Awning/Casement Windows: Measure from trim to trim horizontally and vertically; ensure there’s enough clearance outside as these windows open outward.
- Sliding Windows: Measure at the center from trim to trim horizontally and vertically where sliding sections meet.
- Bay or Bow Windows: Measure each panel separately for both width and height; also measure angles between panels if necessary.
Additional Tips
- Measure Door Swing Direction: Determine whether your door swings inward or outward, and whether it swings left or right—this is important when ordering a new door.
- Check Jamb Width: Measure jamb width (wall thickness) for proper installation within your existing structure.
- For non-standard shapes like arched or triangular windows, use a protractor to measure angles accurately or consult a professional if needed.
Professional Recommendations
When measuring for custom windows and doors, it’s always wise to follow expert advice:
- If unsure, consult a professional installer who can verify your measurements before placing an order.
- Consider energy efficiency by choosing ENERGY STAR-rated products that help reduce heating and cooling costs.
- Inspect existing frames for damage before installation—significant wear or rot may require repairs before fitting new fixtures.
Pro Tip:
Remember: “Measure twice, cut once.” Double-check all measurements before placing an order to avoid costly mistakes.
By following these simple steps carefully, you’ll ensure that your custom windows and doors fit perfectly into your home—improving both aesthetics and functionality while avoiding unnecessary headaches during installation!
