The panel height and width will vary depending on the size of the door. In this case, these are 3/0 x 8/0 doors and each panel is approximately 21" X 7-3/8". Thanks

how much would a door like this cost -- the Vegas solid wood walnut door?

TruStile sells through a nationwide network of aligned dealers. You can find one in your area via www.trustile.com/dealers

Diana, if you haven't found a dealer yet, feel free to contact us with the sizes you are looking for and we can give you a quote. We are located in FL but can ship anywhere. TruStile makes an amazing door, you will be very impressed with the product. Adam@Doviwindows.com

Could you please tell me the source of the door hardware?