[header] How to measure dogs for coats [title] Gather your supplies. [step] Since you'll be measuring the dog's girth and length, you'll need a measuring tape, pencil, and paper. It may also help to have someone assist you in holding the dog steady while you take the measurements. 
[substeps] Have plenty of treats available that you can use to reward your dog and encourage him to hold still. [title] Locate where to measure your dog's girth.