"width between" is a correct phrase in written English.
You can use it to describe the amount of space between two points. For example, "The width between the pool walls was 8 feet."
Moldboard-plow bottom sizes refer to width between share wing and the landside.
A nanometer, a billionth of a meter, is a unit used to measure the width between circuit lines.
There should be a thumb's width between the tip of your big toe and the top of the shoe.
The method for calculating the ratings -- comparing the width between a vehicle's tires to the height of its center of gravity -- is controversial.
The regulators' plan calls for using a stability index that compares the height of a vehicle's center of gravity to the track width between its tires.
It is 36 miles (58 km) long and narrows to 8 miles (13 km) in width between Point Marroquí (Spain) and Point Cires (Morocco).
First, the width between two apexes of the dermal papillary structure used in this study was large due to limitations of the laser cutter.
Currently these cars can fit only 6-speed transmissions because of the limited width between their front wheels.
One small and one large gap width between the two boxes were studied for both variants.
The leaf divisions vary in width between those of the two parents, and the teeth are more incised than in C.
The gas gap width between the thimble and the bayonet has a large effect on the heat transfer rate.
