Please measure twice with a real measuring tape (not phone apps) before purchasing from our shop. You have 24 hours after placing orders for wallpapers, decals or blankets to request a modification. For all those orders like murals or customized wallpapers that require your approval you can always request a modification if you haven't approved you order. Each and every order at Koko Art Shop is custom printed for the individual who orders it, which means that we cannot re-stock and re-sell merchandise returned to us. We do not accept returns for other reasons than defective or damaged items.  When the measurements of your items are the same measurements ordered this is not considered a defect and it does not qualify for a return. We save the art form all our customers specifically for cases like this one and we can print extra panels to match previous orders and expand them.