What if my dog is between two sizes?

Choose the larger size. Adjustable wheelchairs can be made smaller, but a frame that's too small cannot be stretched. Prioritize getting the body length right above all other measurements.

Should I measure in centimeters or inches?

Centimeters are preferred — they give more precision. 1 cm is smaller than half an inch, so centimeter measurements are more accurate. Most wheelchair manufacturers use centimeter-based sizing.

How do I measure a dog that can't stand?

Lay your dog on their side on a flat surface. Measure body length from shoulder blade to base of tail along the spine. Estimate standing height by measuring spine-to-floor while lying down and doubling the number. Hip width can be measured while lying down.

How do I measure a very fluffy dog?

Part the fur and measure against the body, or use firm tension on the tape to compress the coat. For the body length measurement, press the tape through the coat until it touches the dog's natural body contour. Add 2-3 cm for very thick coats.