How much yarn do I need for a large dog sweater?

How do you measure a dog for a crochet sweater?

Measure the length of your dog’s chest by holding one end of the tape measure at the bottom, at the front of your dog’s neck, above the chest bone. Bring the other end of the tape measure down to just underneath your dog’s chest, centered between the tops of his front legs. Jot down the fore-chest measurement.

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