I have a Pinnacle to which I'd like to add a frame.

There are lots of local suppliers of plastics and metal (brass or aluminum)so I just need to decide how large to have pieces cut, then I can bend them on my own.

The Pinnacle has a sleeve for it's current foam sheet. The sleeve is smaller than the back of the pack.

Should I limit my new frame to the size of that existing sleeve, or should I make the framesheet to fit the entire width of the pack?

Thanks everyone.

It carries the load it was intended to fine without any additions. If you need a frame to allow it to carry more weight it makes no sense as the hipbelt will not be up to the task? leave it as it is. it is a great pack.