Best ride-on mowers for large lawns
On a large lawn the spec that sets your finishing time is deck width — how wide a strip the tractor cuts in a single pass. These sourced ride-on mowers are ranked by deck width, widest first; check the transmission and collector on each model's page to match it to your ground.
How we rank: ride-on mowers with a sourced deck width, ranked by cutting width (widest first). These are transparent sorts on sourced specs — we don't publish editorial scores until they're defensibly sourced. Blanks mean "not specified", never a guess.
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Stiga 7121 HWSY
121 cm deck · 688 cc · side discharge · £4,999
- very large lawns (manufacturer rates up to ~8,500 m²)
- fast mowing with a 121 cm triple-blade deck
- side-discharge and mulching for long or thick grass
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Stiga 7102 W
verified 102 cm deck · 708 cc · 300 L collector · £3,899
- large lawns needing a wide 102 cm cut
- high-capacity collection (300 L) with a twin-cylinder engine
- hydrostatic comfort on bigger plots
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John Deere X147R
verified 92 cm deck · 656 cc · 300 L collector · £4,745 – £5,149
- premium-brand rear collection (300 L hopper)
- a compact 92 cm deck that fits through a standard garden gate
- buyers who value John Deere dealer support and resale value
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Mountfield 1330M
verified 84 cm deck · 414 cc · 200 L collector · £2,099
- lawns up to roughly 1 acre
- buyers wanting the lowest-cost rear-collect lawn tractor
- those happy with a manual geared transmission
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Mountfield 1530H
verified 84 cm deck · 432 cc · 240 L collector · £2,599
- lawns up to roughly 1 acre
- easier pedal-operated hydrostatic driving
- rear collection (240 L) emptied without leaving the seat
FAQ
How wide a deck do I need?
As a rough guide, 84 cm suits lawns up to about half an acre, 92–102 cm covers half to one acre comfortably, and 110 cm-plus is for an acre or more. A wider deck cuts faster but needs more room to turn and store.
Does a wider deck mean I can't get into tight spots?
Largely yes — a 121 cm side-discharge deck clears open ground fast but is awkward around trees and borders, where a narrower collecting deck is easier. Pick for the bulk of your lawn, then trim edges separately.