This Low Profile egress window well cover has an 9 to 2 pitch, meaning that at the back it is approximately 9 inches tall, and at the front, it is aproximately 2 inches tall. The term "Low Profile" represents the fact that this cover is approximately 2 inches shorter than it's domed counterpart (and can be made even shorter at your request). The braces on this style of cover also run the width of the cover rather than front to back to accomodate the height.
The size of this cover is 42" wide, by 38" deep and 9" at the back. "Custom" sizes are not priced as custom, and are proportional to the material used and yield, so if this size doesn't fit your needs, just contact us with the appropriate measurements.