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Properly installing window treatments is impossible if the process didn't begin with proper window measurement. Sadly, many novice shoppers fail to recognize the importance of measurements until it's too late.

Improper window measurements could leave buyers unhappy with their purchase. The entire purpose of window treatments is to cover the window. So unexpected "gaps" are appallingly obvious once the product is installed in the home. Even small gaps (1/8 of an inch) are noticeable and will decrease your satisfaction with your window treatments.

There are simple guidelines you can follow to ensure you have the basic measurements you need to get started. You may find that the product you eventually end up with requires additional or slightly altered measurements, but starting the process off with the appropriate basic measurements is important. You will use them to gather estimates on pricing and unless the product you choose to purchase requires "special instruction" measurements you'll be ready to go with your exact measurements when it's time to buy.

If you aren't sure what type of window treatment you need, take two separate sets of measurements. One measurement would be for window treatments that mount inside a window frame/casing. Your second measurement would be for a window treatment that mounts to the wall above the window.

When you plan on mounting window treatments outside your window casing you should take three measurements vertically and three measurements horizontally. Stick to an exact measurement to 1/8 of an inch. If you are planning on mounting horizontal blinds you need to add at least 3 inches to both your length and your width measurements. If you're planning on mounting vertical blinds you must add 4 inches to the width and 3 inches to the length measurements.

To measure for an inside mount window treatment you will again need to take three measurements vertically and three measurements horizontally. From your measurements you should use the longest vertical measurement and the shortest horizontal measurement. Do not round up or down. Take the measurement to the nearest 1/8 inch without any deductions.

If you plan on mounting a window treatment inside a window casing you should have an additional measurement of the depth. The depth measurement should be taken between the interior of the wall and the window. Depth requirements should be included in the list of specifications on any window treatments with interior mount possibilities.

While shopping custom window treatment products ALWAYS ask for help with measurement instructions. Improper measurements mean the wrong size blinds. In some cases this can affect function of the blind and effective energy efficiency. If you are uncertain about your measurements, ask before you buy.

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