Measuring for window valances is the foundational step that determines whether your window treatment achieves a polished, tailored look or a crooked, awkward appearance. A valance, despite its relatively small size, plays a critical role in framing the window and tying together the entire room’s decor. To ensure your valance hangs perfectly and complements your space, you must move beyond guesswork and embrace precise, methodical measurement techniques.
Understanding Valance Types and Their Dimensional Impact
The type of valance you select dramatically influences the measurement process. A rigid valance, such as a wooden board or a heavily structured fabric, requires exact measurements for a seamless fit against the window frame. Conversely, a softer, gathered valance, like a jabot or a gathered fabric panel, demands extra width to accommodate its fullness and desired drape. Before grabbing a tape measure, identify the specific style you intend to use, as this dictates whether you measure strictly to the window edge or require additional inches for hems and fullness.
Measuring for a Standard Inside Mount Valance
An inside mount valance sits securely within the window frame, offering a sleek, built-in appearance. This method requires exacting precision to ensure the valance clears the window sash and fits snugly without being too loose. To measure, first use a metal tape measure to determine the width of the window frame opening at the top, middle, and bottom. Record the narrowest internal measurement; this is the exact width you will cut the valance. For the height, measure from the top of the window frame opening down to your desired finished length, typically just above the window sash or to the middle of the sash, and subtract any necessary clearance for hardware.
Mastering the Outside Mount for Maximum Impact
An outside mount valance is mounted on the wall or molding above the window, extending beyond the frame to create the illusion of a larger window and allowing ample room for opening curtains. This approach is popular for adding visual drama and ensuring curtains can stack neatly to the side. For this method, measure the intended width of the valance itself, which usually extends several inches—often 4 to 6 inches—beyond the window frame on each side. Measure from the edge of the mounting surface (molding or drywall) where the valance will be fixed, and determine the height based on how high you want the valance to sit above the window, generally a few inches above the frame to encompass the brackets.
Accounting for Hardware and Mounting Brackets
Regardless of whether your mount is inside or outside, the hardware is an integral part of the equation. Before cutting your material, map out the location of screw holes or brackets. For an inside mount, ensure brackets do not interfere with the window lock or sash. For an outside mount, calculate the distance between brackets to confirm it matches the spanned width, and verify that the chosen valance length allows the brackets to be anchored into solid material like studs or a sturdy wall. Always add 1 to 2 inches to your final valance width to allow for overlapping the bracket edges and a cleaner finish.
Fabric and Flexible Valance Considerations
When working with fabric valances, such as a gathered silk or linen, the measurement shifts from a simple cut to a calculation for fullness. These materials require significantly more width than the window to create a rich, luxurious gather. A common rule of thumb is to use fabric that is at least 1.5 to 2 times the width of your window. Additionally, factor in seam allowances and hems; a typical hem consumes about 1 inch on the top and bottom, while side hems might use 1/2 inch each. Precise sewing following these measurements ensures the valance hangs evenly and maintains its shape over time.
Tools and Final Verification
Achieving accuracy relies heavily on the right tools. A metal retractable tape measure is non-negotiable for its rigidity and precision, eliminating the sag common with cloth tapes. A level is essential when marking bracket locations to ensure the valance sits perfectly horizontal, preventing a crooked appearance once installed. Before committing to cutting your material, perform a dry fit by holding the valance in place with clothespins or painter’s tape. This allows you to step back, view the proportions, and make any final adjustments to the length or width, guaranteeing a professional result the moment you tighten the final screw.
