- Measure the width of the window opening. Purchase one or more adjustable tension rods in the right size range to fit the opening, based on the number of curtains to be hung. For instance, a single full-coverage curtain requires just one rod while adding a valance and/or half-curtain requires two or three.
- Twist the rod to adjust it to the width of the window opening. Position the rod inside the window casing and pull downward gently on the center of the rod to test for secure fit. Adjust the rod for a tighter fit, if necessary.
- Remove the rod from the window casing and insert it through the rod pocket at the top of the curtain. Alternatively, slip curtain clips or curtain rings with the curtain attached over the rod.
- Position the rod inside the window casing at the desired level and spread the curtains evenly across the window to check for proper fit. Adjust the height of the rod, or remove and shorten the curtains, if necessary.
Things You Will Need
- Measuring tape
- Tension rod(s)
- If the curtains are too short, move the tension rod down inside the window casing until the curtain hem is even with the windowsill.
- Create a layered window treatment inside the casing with café-style curtains paired with full-length curtain panels.
- Use a heavy-gauge tension rod for a wide opening and suspend a hook from the top of the casing at the center of the rod for added support, if necessary.
- Use a tension shower rod to hang drapes inside a patio door casing.