Need help making a drag Net

[Mr alvey]

After several years of reliable service my trusty old drag net has finally had its day however I'm keen to make one myself .

I've got the time as I'm trying freshwater fishing for a while and I'm only using earthworms dug from my garden as bait but when saltwater fishing I always use my trusty drag net and this last one was handmade by someone and it lasted a really long time however I don't know how to make one and can't seem to find anything on the web other than how to make cast nets . Has anyone ever made one who can tell me where to start or does anyone know where to find info on the web about it

Thanks Sam