Junk removal pricing is usually about the whole pickup, not just the pile. Volume matters, but so do labour, item type, stairs, elevators, parking, carrying distance and whether everything is already outside.
Volume is only part of the job
A large pile already outside near parking can be simpler than a smaller amount of furniture spread through a condo, basement or upper floor. That is why the price is rarely based on volume alone.
Labour and access often decide the price
Stairs, elevators, tight hallways, long carries, underground parking, loading bays and condo booking windows can all change how much time the pickup takes.
How to get a more useful quote
The best quote details are usually simple: clear photos, an item list, where the items are, whether there are stairs or elevators, and how close the crew can park.