KathyC said:I used this Adrian Steel upfitter site to get the dimensions. They remained accurate for current models.
https://www.adriansteel.com/item/cargo-vans/dimensions/
frater secessus said:The edge of the roof exterior has a compound angle that makes measuring a philosophical exercise.
The Vantech H3 rack in this pic is 65" wide, probably 65.25" including the vinyl endcaps:
http://img.mousetrap.net/pm/IMG_20170818_123916.jpg
It extends past the first angle but not the plane of the side of the van. I think when I was looking for panels 68" was the longest that would fit without hanging off the side of the van (it would stick out past the first angle). The panels in this pic are 62.2" long (mounted crosswise).
I can climb up there with a measuring tape if you have something specific in mind.
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