A flat cover or one with some height to it?

This recent thread had some good pictures and info of an old (store-bought) canvas top with simple framework that you could duplicate or improve upon.
https://www.stovebolt.com/ubbthreads/ubbthreads.php/topics/1389782/canvas-bed-cover.html

Some of the aftermarket flat roll up aluminum covers are based on rolling hurricane shutters, or so I've been told. If so then perhaps you could adapt one the right size (probably made to order) to your truck even if the aftermarket truck bed versions aren't sold for 9' beds.

I've seen old aluminum truck caps for the AD trucks but not sure I've seen a 9' version, and rarely see them for sale at any length. I've been thinking about making my own one day with aluminum angle for the framework and aluminum sheet riveted to it, similar to airplane and/or airstream camper construction methods. I have a collection of pictures of original ones to guide my own design. One detail I like is a fold down cot frame on each side, making it a real basic/simple camper.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-