Makita DLM382Z vs DLM432Z: which 36V mower is the smarter buy?
If you already own Makita LXT batteries and are choosing between these two twin-18V cordless mowers, the real question is whether the extra cutting width and slightly larger chassis of the DLM432Z are worth the higher price. Both are aimed squarely at UK homeowners who want a quiet, low-maintenance mower for small to medium lawns, especially in typical British conditions where damp spring growth and mixed grass can test weaker machines. On paper they look very close, but in real use the differences in deck size, handling, and efficiency matter more than the spec sheet suggests. Here’s the definitive head-to-head.

Makita DLM382Z Twin 18V (36V) Li-ion LXT 38cm Lawn Mower - Batteries and Charger Not Included

Makita DLM432Z Twin Li-ion LXT Cordless Lawn Mower, Batteries and Charger Not Included, Blue, 43 cm, 18V (36V), 15.8 Kilograms
Our Recommendation
The Makita DLM432Z is the better overall buy because its 43 cm cutting width gives you faster mowing and better efficiency with the same 36V twin-battery system. The extra £20.99 is a fair premium for the time saved, especially on medium-sized UK lawns or in peak growing season. It keeps the same strong 4.6/5 rating as the DLM382Z, so you are not sacrificing reliability to get the larger deck. If you want the more capable, future-proof option, choose the DLM432Z.
Detailed Comparison
Display
Neither mower has a display or screen, so there is no difference here in the usual sense. Both are simple, battery-powered push mowers with a straightforward control layout, which is exactly what most UK gardeners want: no app, no complicated settings, and no unnecessary electronics to fail. Winner: tie.
Performance
This is the most important category, and it goes to the DLM432Z. Both models run on two 18V LXT batteries for a combined 36V system, so raw power is broadly similar, but the DLM432Z’s 43 cm cutting width gives it a real advantage in productivity. Compared with the DLM382Z’s 38 cm deck, you cover more ground per pass, which is noticeable on anything from a modest suburban lawn to a larger back garden. In practical terms, the DLM432Z is the better choice if you mow regularly and want to finish faster, especially when grass is growing quickly in late spring and early summer. The DLM382Z is still capable, but the narrower deck means more passes and slightly more effort on larger areas. Winner: DLM432Z.
Build quality and design
Both are Makita LXT tools, so both benefit from the brand’s generally solid plastics, sensible ergonomics, and widespread parts/commonality with other Makita kit. The DLM382Z is the lighter, more compact option, which makes it easier to store in a tight shed and easier to manoeuvre around narrow side paths, awkward borders, and smaller lawns. The DLM432Z, at 15.8 kg, is still manageable, but its larger deck makes it feel more substantial and a bit less nimble in confined spaces. For build and design, this is close, but the DLM382Z wins narrowly if you value compactness and easier handling; the DLM432Z wins if you value a more substantial cutting platform and better coverage. Overall winner: DLM432Z for design utility, but only by a small margin.
Battery life
Strictly speaking, battery life depends more on the batteries you fit than on the mower alone, but deck size affects runtime. The DLM382Z’s 38 cm width should be a little more efficient, so with the same pair of batteries it may squeeze out a bit more mowing time than the DLM432Z. That can matter if you’re using smaller 3.0Ah packs or if you already know your lawn is just on the edge of what your batteries can comfortably handle. However, because the DLM432Z cuts a wider strip, it often finishes the job in fewer passes, which partly offsets the extra drain. For most users with 5.0Ah or larger Makita batteries, either mower will handle a typical UK lawn without drama; for marginal battery capacity, the DLM382Z has the edge. Winner: DLM382Z.
Price and value for money
The DLM382Z is cheaper at £209.00, while the DLM432Z costs £229.99, a difference of £20.99. That’s not a huge gap, but it is enough to matter if you’re buying the bare tool and still need to budget for batteries and charger separately. On pure value, the DLM382Z is excellent: the ratings are identical at 4.6/5, and it has by far the larger review count at 2,913 versus 1,834, which suggests strong long-term buyer confidence. The DLM432Z asks for a modest premium, but it buys you a wider cut and better efficiency, which many people will happily pay for. If you’re cost-conscious, the DLM382Z wins value; if you prioritise time saved, the DLM432Z justifies its extra cost. Winner: DLM382Z.
Game library/features
For lawn mowers, this category translates to features and compatibility rather than games. Both are bare tools, so batteries and charger are not included, and both sit on Makita’s twin-18V LXT platform, which is a huge advantage if you already own Makita batteries from drills, strimmers, hedge trimmers, or blowers. That ecosystem compatibility is effectively the main feature here: you can share batteries across a wide range of tools, reducing overall ownership cost. The DLM432Z has the practical feature advantage because the 43 cm deck improves cutting efficiency, but otherwise the feature set is very similar. Winner: DLM432Z.
Overall user experience
For day-to-day mowing in a typical UK garden, the DLM432Z is the better mower to live with if your lawn is medium-sized or if you want to spend less time pushing back and forth. The wider deck makes it feel more efficient, and that matters more than the small price increase once you’re mowing regularly through the growing season. The DLM382Z is the better fit for smaller gardens, tighter spaces, and buyers who want to keep costs down while still getting a well-liked Makita cordless mower. Both are well reviewed, both are from a trusted platform, and both should perform well on standard domestic grass rather than overgrown rough ground. Overall summary: the DLM432Z is the better all-round buy for most people, while the DLM382Z is the smarter budget choice for smaller lawns and lighter use. If you want the definitive answer, buy the DLM432Z unless price and storage space matter more than speed.
Buy the Makita DLM382Z Twin if...
Buy the DLM382Z if your lawn is small, you have narrow access, or you want the cheapest entry into Makita’s twin-18V mower range. It is also the better pick if you already know your battery setup is modest and you want to maximise runtime per charge. For compact gardens and tighter storage spaces, it makes a lot of sense.
Buy the Makita DLM432Z Twin if...
Buy the DLM432Z if you mow a medium-sized lawn, want to finish faster, or dislike making extra passes on damp spring grass. It is the better choice if you value efficiency and don’t mind paying a little more for the wider 43 cm deck. For most UK homeowners with an average suburban garden, this is the stronger long-term buy.
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