Our Real Wood blinds are made of 100% kiln dried Basswood, a light weight and durable wood. All of these blinds are custom amde to order and are not pre-made, stocked blinds. This product is recommended for non-humid rooms (living rooms, dining rooms, and bedrooms.) Our Basswood material is also Grenngaurd Cerfied for both Air Control Quality and Children and Schools. MEASURING INSTRUCTIONS: Please do not use the measurements of a blind that you will have replaced. Instead, please read our measuring instructions located in in our photos on this page. Our blinds are recommended for window casings that are at least 3" deep because if less than that, the blinds will protrude and you will be able to see the metal installation brackets from a side angle (VALANCES DO NOT COME WITH CORNER SIDE PIECES.) We STRONGLY RECOMMEND requesting FREE COLOR SAMPLES from us so that you are completely satisfied, please call (678)745-4113 to request free samples or Contact Us on Amazon. All computer monitors are different from one another, therefore, the colors that you see online may not be 100% accurate to what you see in person.DELTA BLINDS SUPPLY'S RETURN POLICY: Buyers pay for return shipping, a 30% restocking fee on all blind returns as they are all custom made per order. Please verify and confirm the sizes and colors of your order are accurate to your needs so that you are completely satisfied. Thank you!