The technology of pulling a hammock from a tape onto a frame can be seen below
Video source: https://www.facebook.com/watch/?v=218183399044507
Do-it-yourself bed for a large dog. We look at how to make a sunbed or a place for dogs. We have created a frame and a hammock on which you can put a mat for dogs or a sleeping place for a dog.
Konstantin Markin zoopsychologist and trainer