Here are some photos of the rockin’ quadrat frame case my dad made for me to keep my disassembled quadrat frames in. I asked him to make me the frames and he figured out a way to keep it all together AND make it easy to carry. A 1 meter long quadrat is somewhat unwieldy. If you don’t know what a quadrat is, you probably don’t need a case for it. But if you’re curious, go check out my DIY Quadrat Frame.
As you can see, it’s made of 2 inch PVC pipes and fittings with a guitar strap for a handle.
The end that opens has a screw on cap fitting. With the sand at my research beaches that gets into everything, you can’t ever close it all the way, but it stays just fine with a few turns.
The closed end has a permanent cap that’s glued on. You can also see how the guitar strap has been permanently attached.