We know everyone makes mistakes. If your blinds don't fit, even if you make a mistake in measuring, just let us know within 60 days of delivery and we'll remake them in the sizes you need free of charge, you only pay shipping. If the size we remake is more expensive than the size you originally ordered, you only pay the difference. There is a limit of 3 free remakes on most orders; shutters and motorized products are limited to 1 free remake. Additional restrictions apply please see our policies for full details.