The unit of sale is a schedule, not a product
Seventy lines, one award
A project enquiry in cables does not ask for a cable. It arrives as a schedule: dozens of line items, each with a voltage grade, a size, a core count, an armouring specification and a length. The contractor is comparing vendors line by line, but the award usually goes as a package, which produces an uncomfortable dynamic. A vendor who prices the whole schedule at a fair number frequently beats one who prices two thirds of it slightly better.
That is why coverage deserves to be a tracked number rather than an afterthought. When the schedule is held as line items with their own status, the estimation team can see before submission that eighteen lines are unpriced and decide deliberately: source them, decline them openly, or price them with a longer delivery. What should never happen is discovering the gap when the award goes elsewhere.
Every line has a delivery reality behind it
Sizes that are already running on your machines and sizes that require a change over are commercially different, even at the same price. Recording that alongside the line lets a sales engineer negotiate on delivery rather than only on rate, which is often where a contractor with a live site actually feels pressure.