How to choose a vacuum for your home size

Start with a warning. I found no standards body that publishes vacuum sizes by floor area. Everything below is a rule of thumb from a named retailer, magazine or consumer group, or it's my own opinion. I haven't tested these machines, and the test results here belong to TechRadar.

Three questions settle most of this. How big is the home? How much of it is carpet? And are there stairs?

My lines by home

These thresholds are mine, built from the guides further down.

• Under 700 sq ft (65 m²), mostly hard floor: a stick. Add a small robot if you like.
• Under 700 sq ft (65 m²), mostly carpet: a stick you've checked for carpet results, or a compact corded machine if you have somewhere to store it.
• 700 to 1,500 sq ft (65 to 140 m²), mostly hard floor: a long-running stick, or a LiDAR robot plus a stick.
• 700 to 1,500 sq ft (65 to 140 m²), mostly carpet: a corded upright or canister.
• Over 1,500 sq ft (140 m²), or several floors: a corded main machine, or a stick with a swappable battery. A robot can help, as long as you accept it won't do everything.

Stairs change the answer at any size. I wouldn't make a heavy upright the only vacuum in a house with them.

What the guides say, and where they split

CHOICE, the Australian consumer group, rates barrel and upright vacuums best for thorough cleaning of large floor areas, especially carpet, and calls them suited to medium to large homes, though it says they suit all sizes. It calls sticks fine for all sizes, good on hard floors and not very good on carpet. Robots get small to medium, hard floors, and a recommendation to pair them with a regular vacuum.

Ideal Home, in the UK, leans the same way. Larger homes should lean towards corded upright or cylinder vacuums, it says, so you don't run out of charge halfway through. It adds that uprights may only suit apartments or bungalows without stairs, and that a flat with only hard floors and rugs may need nothing more than a vacuum mop.

Homes & Gardens is kinder to cordless machines. They get the job done, it says, unless you live in a big, messy home. It also says they last around 3 to 5 years, against 8 to 10 or more for uprights and canisters. That's a magazine's average, and it's worth weighing against the convenience.

RoboVacGuide is the one source I read with numbers, and it's a single affiliate site. Treat them as a rough guide: under 700 sq ft (65 m²) a 90-minute robot is enough, 700 to 1,500 sq ft (65 to 140 m²) wants 120 minutes or more with mapping, and above that it wants 180 minutes or recharge-and-resume. CHOICE would stop at medium homes. So there's your conflict.

Four machines, four homes

Shark PowerDetect IP1251 ($449.99), for hard floors up to 1,500 sq ft (140 m²). Rated at 70 min. TechRadar tested the IP3251, the same stick sold with an auto-empty base. It timed about 47 minutes on an average clean, and called that more than enough for most homes in one go. It weighs 7.96 lb, and the long Eco runtime won't work on carpet. My apartment list has lighter options.

Shark Navigator NV360 ($189.99), for carpet and stairs over about 500 sq ft (46 m²). It's a 10 A corded upright with a 25 ft cord. At 15.96 lb it's heavy, which is why the lift-away pod matters: Abt says it detaches for stairs and furniture. I couldn't open an independent test, so I can't speak to its carpet pickup. Measure your cupboard before you buy. CHOICE says full-size machines need real storage space.

Miele Blizzard CX1 ($679), for hard floors in a larger home. Abt lists 32 ft of operating radius and no powered head, and it weighs 19 lb. TechRadar tested the UK CX1 Flex, which has the same main vacuum but a different floorhead, and found it quiet, better placed in larger homes, poor at hair on carpet and not suited to homes with pets. I'd skip it if you have either.

Roborock Q10 VF+ ($399), as the helper in a mid-size home. Rated at 150 min, with an auto-empty dock. It stores multiple floor maps, according to Abt. I found no test of this exact model that I could read. You'd still wash the mop pads by hand and clean the stairs yourself. My robot list by home size compares it with the rest.

Prices were checked November 2, 2026. If you'd rather not work through all this, the home sizer takes your floor area, or you can browse all the corded vacuums.