Assortment breadth

Assortment breadth is the number of distinct product groups or lines a merchant carries. A kitchenware store adding lighting broadens its assortment. Adding colours within an existing line increases depth rather than breadth.[1]

Use a consistent classification when comparing breadth. Another category can serve additional buying needs, but also requires expertise, content and purchasing capacity. Assess whether it fits existing customers and operating processes instead of treating a larger category count as an improvement in itself.