Flower Mound quotes move on four local variables, and the first one is the one most people get wrong.
Material type beats size here. The landfill that takes Denton County loads charges extra for what it calls non-compactable material, naming bricks, concrete, and composition shingles. A roof tear-off and a garage cleanout of the same volume are therefore not the same job, and we price them differently.
Weight is the next lever. Dense material reaches the included tonnage well before the container is visually full, so a 10-yard of broken patio concrete can cost less in the end than a 20-yard of it.
Volume rules the bulky jobs. Framing offcuts, drywall, insulation, cabinets, and packaging take space rather than weight, which is where the 30-yard earns its keep on a Flower Mound addition.
Finally, there is what the Town's own service will not do. Weekly bulk and brush pickup is limited to about four cubic yards, cart contents are capped at 100 pounds, and the Town tells residents to keep bricks, concrete, and tiles out of the cart entirely. Anything past those limits is a container job, and your account manager will say which size fits.