We offer our vintage style aluminum drip caps in 20 lengths, starting at $13.01. Lengths are measured as the overall length of the entire cap, including the mounting flange. Generally, you can expect the flange to measure 3/4" on the left and right and 1" above. In their original sales literature from 50 years ago, Hehr recommended that customers measure the overall width of their windows and buy a cap 3" longer, allowing 1-1/2" on each side. But if you are replacing an old cap, you can just buy the same overall size as your original. Our caps have an overall depth (protruding from the trailer) of 1-1/4", just like the majority of old Hehr caps.
We know there were many lengths of caps back in the day and that you may not find your exact size in our selection. Over time, we can add sizes to our inventory if demand warrants. In the meantime, a common way for adjusting sizes at the factory was to piece two caps
together by overlapping them to form one, longer cap. This technique
can be used and be entirely in keeping with an original appearance.