Household edges
You already know the head takes 2.4 mm and you want about 60 m to 100 m in a profile the eyelet accepts. The 100 m square has the largest UK review file that matches this title and this length.
2.4 mm strimmer line comparison 2026
The best 2.4 mm strimmer lines, compared.
Top pick: YAMAKATO star 60 m Best value: Oregon round 15 m – Lowest shelf price among packs with at least 1,000 ratings, a stated 2.4 mm diameter and a named profile. Updated 22 October 2026.
A 2.4 mm strimmer line is nylon cord for a trimmer or brushcutter head already approved for that diameter. In the UK you are usually replacing a worn spool. The limit that matters is the maximum diameter on the head or in the manual. A light cordless head supplied with about 1.6 mm often will not take 2.4 mm in the clip or the eyelet. Round line is the usual section for lawn edges. Square and star present an edge for thicker grass. On a square the stated 2.4 mm is the side, so the corner is wider and the eyelet has to let it through. Star line has five edges and can be harder to wind than round. Use the guard the machine maker approves, keep the nylon out of heat and sun, and look through long grass before you start. Our [2.4 mm strimmer line buying guide](/hub/lawn-and-garden-equipment/2-4mm-strimmer-line/sub/2-4mm-strimmer-line-buying-guide) sets the checks in that order: diameter, then profile, then length.
A 2.4 mm strimmer line is nylon cord for a trimmer or brushcutter head already approved for that diameter. In the UK you are usually replacing a worn spool.
36 products checked · 58 hrs invested · +21,400 readers
10 of 10: Best 2.4 mm strimmer lines compared
Swipe for more
1-2 of 10Best overall
Best value
7.4/10
9.2/10
8.8/10
8.6/10
8.2/10
7.9/10
7.0/10
6.4/10
6.4/10
7.0/10
∼ £11
∼ £11
∼ £31
∼ £34
∼ £26
∼ £15
∼ £40
∼ £6
∼ £16
∼ £54
4.8(12)
4.6(7,316)
4.6(4,712)
4.6(3,021)
4.5(1,447)
4.5(358)
4.4(386)
4.3(14,156)
4.3(14,156)
4.1(175)
Personal buying guide
Which 2.4 mm strimmer line fits?
Question 1 of 2
Which section does the eyelet already accept?
The best 2.4 mm strimmer lines in detail
Our view
YAMAKATO’s pentagonal orange line is 2.4 mm by 60 m at £10.99, with a line cutter in the box and 4.8 from 12 reviews. Ten of the 11 saved texts are from the United Kingdom. Those buyers say the star edges cut thick and long grass with less drag than round, and a Ryobi OLT1832 owner uses the 60 m to refill reels instead of buying pre-wound spools. One reviewer found it springier than round, then free-running, and used the cutter when reloading outdoors. A lightweight budget strimmer could not take the diameter, and one petrol test called the strength only average. Twelve ratings are too small to rank the brand above packs with thousands of reviews. It is a short star spool with a cutter if your head already takes 2.4 mm, and it is not Oregon Nylium.
Pros
- Star profile, 2.4 mm by 60 m, at £10.99
- A line cutter is included
- 10 of 11 saved texts are from the United Kingdom
- A Ryobi OLT1832 owner refills reels from the 60 m
Cons
- 4.8 from only 12 reviews
- A lightweight budget strimmer could not take the diameter
- One petrol test called the strength only average
- The corner width of the star is not stated
Best for: You already run 2.4 mm in the head and you want about 60 m of star line plus a cutter.
Less suitable: Anyone ranking a brand from 12 ratings, or a light cordless head supplied with about 1.6 mm.
Specifications
- Model
- YAMAKATO star 60 m
- Brand
- YAMAKATO
- Price
- ∼£11
- Customer rating
- 4.8/5(12)
- Profile
- Star
- Length
- 60 m
- Eyelet
- Five-edge 2.4 mm
- Nylon
- Special nylon
- Included
- Line cutter
- Colour
- Orange
- Weight
- 181 g
Common questions
How long is the spool?
The bullet says 60 m, also written as 196 ft ±2 ft, at 2.4 mm (0.095 in).
Does the box include a cutter?
Yes. The title and a bullet both include a bonus cutting tool.
Will a small cordless strimmer take it?
One UK review says a lightweight budget strimmer could not take the diameter. The listing questions do not answer a fit for every machine.
Our view
Viabrico’s orange square copolymer is listed at 2.4 mm by 100 m for £10.99, with 4.6 from 7,316 amazon.co.uk reviews and 50 United Kingdom texts saved for this title. Several of those texts prefer the square to round line, and one owner of a Stihl AutoCut C 3-2 on a 36 V cordless says square is the maximum that head will take and that less line is lost on raised-bed edges. A Makita 18 V owner preferred it to thin line that kept snapping, and a petrol user says it bump-feeds and cuts cleanly. The listing tells you to check that the head can use 2.4 mm, which is the useful limit: a brand list is not a fit certificate. One review weighs a spool against a 380 m description and claims about 390 m, which is not this 100 m title. The supplied reel can unwind if you do not hold it, and one buyer says the thicker cord changes the sound of the strimmer. It leads this comparison because the review file matches this title and this length, not because a lab timed the cut.
Pros
- Square 2.4 mm by 100 m at £10.99 in the 19 October 2026 capture
- 4.6 from 7,316, with 50 United Kingdom texts
- Reviewers name a Stihl AutoCut C 3-2 and a small Makita 18 V
- The bullet tells you to check the head can take 2.4 mm
Cons
- The diagonal of the square is not printed
- One review claims about 390 m, which the title does not
- The reel can unwind if it is not held
- A reviewer says the thicker cord changes the sound
Best for: You already know the head takes 2.4 mm square and you want about 100 m with a large UK review file.
Less suitable: A cordless head supplied with about 1.6 mm, or an eyelet you have not checked against a square corner.
Specifications
- Model
- Viabrico square 100 m
- Brand
- Viabrico
- Price
- ∼£11
- Customer rating
- 4.6/5(7,316)
- Profile
- Square
- Length
- 100 m
- Eyelet
- Square side 2.4 mm
- Nylon
- Copolymer nylon
- Included
- Line on a spool
- Colour
- Orange
- Weight
- 760 g
Common questions
Is the corner wider than 2.4 mm?
This listing states the side as 2.4 mm and does not print a diagonal. The material-type attribute says Plastic; the bullet says copolymer nylon.
Which head was named in reviews?
One UK review says it fits a Stihl AutoCut C 3-2 on a 36 V cordless, and that square is the maximum that head will take.
Does a review claim 390 m?
Yes. One text weighs a spool against a 380 m description. The title and bullet on this file say 100 m.
Our view
Oregon’s yellow round pack, model 69-365, is 2.4 mm by 264 m at £31.33, with 4.6 from 4,712 reviews and 50 United Kingdom texts. Reviewers name Honda, Ryobi petrol, and DeWalt machines, and one says a soak in a bucket is why theirs lasts, putting later breaks down to how it was used. Another replaced Stihl 2 mm that had welded in the head and would not bump-feed. The container is praised for letting you pull line without a tangle, and one buyer ordered a second roll after finding fewer snaps than cheaper brands. The same long-term note says it breaks faster once the job moves into heavy brush. One title in the saved sample is for Oregon yellow 2.0 mm line, so that text is not evidence about this 264 m reel. On the stated length it is about 12 pence a metre, which only helps if you will use the roll before it dries in a hot shed.
Pros
- Round 2.4 mm by 264 m at £31.33
- 4.6 from 4,712, with 50 United Kingdom texts
- Reviewers name Honda, Ryobi petrol, and DeWalt
- One reviewer soaks the line in a bucket before use
Cons
- One saved review title is for 2.0 mm yellow line, not this reel
- A long-term note says it breaks faster in heavy brush
- 264 m is wasted if the spool sits unused in the sun
- The printed weight is 1.36 kg, which you should not mix with lighter star-pack weights
Best for: You finish a lot of round 2.4 mm line on lawn edges and you will store the roll out of the sun.
Less suitable: A small garden that uses a few metres a month, or heavy brush the manual already sends to a blade.
Specifications
- Model
- Oregon round 264 m
- Brand
- Oregon
- Price
- ∼£31
- Customer rating
- 4.6/5(4,712)
- Profile
- Round
- Length
- 264 m
- Eyelet
- Round 2.4 mm
- Nylon
- Nylon
- Included
- Line pack
- Colour
- Yellow
- Weight
- 1.36 kg
Common questions
What colour is printed?
The colour attribute is yellow. The title states round 2.4 mm x 264 m and does not repeat the colour.
What do reviewers say about soaking?
One review says to put it in a bucket of water and reports long life, with breaks put down to how it was used.
Is every saved review about 2.4 mm?
One title in the file is for Oregon yellow 2.0 mm line and warns against using it in place of 1.5–1.8 mm line.
Our view
Stihl’s orange square polyamide, part 0000 930 2612, is 2.4 mm by 253 m at £33.92 on amazon.co.uk, with 4.6 from 3,021 reviews and 50 United Kingdom texts. Reviewers say it does not keep breaking the way cheaper line did, and one soaks the reel for 24 hours to stop it going brittle. One account describes the square slicing thick farm grass and about 65 cm of growth by a kerb, and a Honda user found it tougher than round line from a DIY shop. The listing asks whether other brands can use it and does not answer. In one Honda petrol head the square melted and stuck, and that reviewer preferred round afterwards. Cut ends splay unless they are sanded, and at least two texts say it snaps. Stihl’s own UK shop showed a shorter square pack at £15.20 including VAT on 19 October 2026, which is a different offer from this 253 m reel.
Pros
- Square 2.4 mm by 253 m at £33.92 on amazon.co.uk
- 4.6 from 3,021, with 50 United Kingdom texts
- Reviewers compare it with cheaper line that kept breaking
- One reviewer soaks the reel for 24 hours
Cons
- The listing does not answer use on other brands
- One Honda petrol head melted and stuck the square
- Cut ends splay unless sanded, in one review
- At least two texts say it snaps
Best for: You run a brushcutter the manual already allows on 2.4 mm square and you will use a 253 m reel.
Less suitable: A Honda head that has already melted square line, or a buyer comparing this reel with Stihl’s shorter shop pack.
Specifications
- Model
- Stihl square 253 m
- Brand
- Stihl
- Price
- ∼£34
- Customer rating
- 4.6/5(3,021)
- Profile
- Square
- Length
- 253 m
- Eyelet
- Square side 2.4 mm
- Nylon
- Polyamide
- Included
- Line only
- Colour
- Orange
- Weight
- 1.2 kg
Common questions
What is the line made of, on this page?
The bullets say durable polyamide. The material-type attribute says Plastic. Diameter is 2.4 mm and length is 253 m.
Can it be used on other brands?
The listing asks that and does not answer it. Reviews name Honda and Stihl petrol machines. One Honda user says the square melts and sticks, and that round works better in that head.
Do reviews mention soaking?
One reviewer soaks the reel for 24 hours and says that helps stop the line going brittle.
Our view
Oregon’s Nylium star, model 104883E, is five-edge line at 2.4 mm by 90 m for £25.76, with 4.5 from 1,447 reviews and 50 United Kingdom texts. The bullet says nylon with aluminium particles, which Oregon describes as a way to resist coils welding when the head heats. A Stihl petrol user runs it through brambles and nettles and accepts a shorter life on that job, and another calls the five edges a cleaner cut than DeWalt stock line. That DeWalt owner also says it is substantially louder. One buyer returned it after it kept breaking on ordinary nettles, and one text says it sometimes starts to melt. The amazon.co.uk weight attribute prints 60 g, while Oregon’s UK page for this part prints a packaged weight of about 520 g, so do not treat 60 g as the mass of 90 m of line. It is a shaped 90 m option when the eyelet already takes a star, and a poor swap if you wanted quiet round line for lawn edges.
Pros
- Five-edge 2.4 mm by 90 m at £25.76
- 4.5 from 1,447, with 50 United Kingdom texts
- The bullet names nylon with aluminium particles
- Reviewers use it on grass and, with a shorter life, on brambles
Cons
- One DeWalt owner says the five edges are louder than stock line
- A return review says it kept breaking on ordinary nettles
- One text says it sometimes starts to melt
- The listing prints 60 g and Oregon UK prints about 520 g packaged
Best for: You want a 90 m star with the aluminium-particle claim and the eyelet already accepts it.
Less suitable: Lawn edges where noise matters, or a head that has not been checked for a five-edge section.
Specifications
- Model
- Oregon Nylium star 90 m
- Brand
- Oregon
- Price
- ∼£26
- Customer rating
- 4.5/5(1,447)
- Profile
- Star
- Length
- 90 m
- Eyelet
- Five-edge 2.4 mm
- Nylon
- Aluminium-particle nylon
- Included
- Line only
- Colour
- Black
- Weight
- 60 g
Common questions
What does Nylium mean on this listing?
The item-type name includes Nylium Star. The bullet says nylon with aluminium particles, for conductivity and cooling. That is the listing claim.
Do reviews mention noise?
One review says the five-edge line cuts cleaner than DeWalt stock line and is substantially louder. Another says it sometimes starts to melt.
Is the printed weight plausible next to the 88 m pack?
This page prints 60 g for 90 m. The 88 m round page prints 660 g. Both figures are copied as printed.
Our view
Zeqeey’s orange square is listed with a 2.4 mm side and a diagonal of about 3.4 mm, about 100 m, at £14.99, with 4.5 from 358 reviews. Thirty-one of the 50 saved texts are from the United Kingdom. Reviewers who got it to feed call the square tougher than round on long heavy grass and shrubs. Others say it is too stiff to wind, that it needs three hands, and that it snaps in long pieces near a wall or fence. One Husqvarna spool jammed and would not feed. No cutter is named in the box. The printed diagonal is the measurement the other square rows leave out: the eyelet has to pass about 3.4 mm, not only the 2.4 mm side. Take it when you have already checked that corner, and leave it if the head only just accepts round 2.4 mm.
Pros
- States a 2.4 mm side and a diagonal of about 3.4 mm
- About 100 m at £14.99
- 4.5 from 358 reviews, 31 of 50 saved texts from the United Kingdom
- Reviewers who fed it call it tougher than round on heavy grass
Cons
- Called too stiff to wind, including a three-hands complaint
- Snaps in long pieces near a wall or fence
- Jammed in one Husqvarna spool and would not feed
- No cutter is included
Best for: You have measured the eyelet against about 3.4 mm across the corners and you want a square near 100 m.
Less suitable: A head that only just passes round 2.4 mm, or a bump-feed spool you already struggle to wind.
Specifications
- Model
- Zeqeey square 100 m
- Brand
- Zeqeey
- Price
- ∼£15
- Customer rating
- 4.5/5(358)
- Profile
- Square
- Length
- About 100 m
- Eyelet
- 2.4 mm side, 3.4 mm corner
- Nylon
- Composite nylon
- Included
- Line only
- Colour
- Orange
- Weight
- 600 g
Common questions
Why does the title mention 3.4 mm?
The title and a bullet call about 3.4 mm the diagonal of the square. The side is 2.4 mm.
Did reviews get it onto a Husqvarna?
One review says it jammed in a Husqvarna spool and would not feed. Others say it is stiff to wind and snaps near walls and fences.
Is a cutter included?
No cutter is named. The pack is one orange square rope of about 100 m.
Our view
Oregon’s five-edge line, model 69-455-Y, is 2.4 mm by 332 m at £40.32, with 4.4 from 386 reviews. The nylon bullet does not mention aluminium particles, so this is not the Nylium claim on the 90 m and 360 m rows. Only five of the 50 saved texts are from the United Kingdom. One UK buyer who already uses Oregon kit calls it strong. Another says it wears so fast on grass that they replace it every third pass, and another calls it a bit noisy next to Stihl CF3 Pro. The printed weight is 360 g for 332 m, far below the 1.36 kg printed on the 264 m round pack, so treat the mass as a listing figure. At £40.32 it only earns its place if you will use the metres on a head that already accepts a star. Most of the saved review file is not a UK sample.
Pros
- Five-edge 2.4 mm by 332 m at £40.32
- 4.4 from 386 reviews
- The listing does not pretend this is the aluminium-particle Nylium line
- One UK buyer who uses other Oregon kit calls it strong
Cons
- Only five of 50 saved texts are from the United Kingdom
- One UK review says it wears out quickly on grass
- Called a bit noisy next to Stihl CF3 Pro
- Printed weight is 360 g for 332 m, which looks light beside the 264 m round pack
Best for: You will finish a long star roll and you do not need the aluminium-particle bullet.
Less suitable: A household buying from UK reviews alone, or anyone who wanted the 90 m Nylium doughnut.
Specifications
- Model
- Oregon star 332 m
- Brand
- Oregon
- Price
- ∼£40
- Customer rating
- 4.4/5(386)
- Profile
- Star
- Length
- 332 m
- Eyelet
- Five-edge 2.4 mm
- Nylon
- Nylon
- Included
- Line pack
- Colour
- Yellow
- Weight
- 360 g
Common questions
Is this the Nylium star?
The nylon bullet does not mention aluminium particles. The model is 69-455-Y. The 90 m and 360 m listings are the ones with that particle line.
How many of the saved reviews are from the UK?
Five of the 50. One UK text says it wears out quickly on grass. Another UK text calls it a bit noisy next to Stihl CF3 Pro.
What weight is printed for 332 m?
360 g. The 264 m round listing prints 1.36 kg. Both figures are copied as printed.
Our view
Oregon’s orange round doughnut, model 69-362-OR, is 2.4 mm by 15 m at £5.99. The listing shows 4.3 from 14,156 reviews, and the 50 saved texts are the same file as the 88 m pack, so that count is not 15 m buyers alone. One text is about a 3 mm purchase. In the shared sample, people say it replaced line that broke every few seconds around concrete and stones, and they like the dispensing eyelet on the container. The same texts say it is too thick for some holes, snaps at the base of the head, and snaps on pavement so the spool has to come off to rethread. Fifteen metres is a trial of round line on a head already marked for 2.4 mm. At about 40 pence a metre it is dear per metre next to the longer reels. The best value mark here is the lowest shelf price among packs with at least 1,000 ratings and a stated 2.4 mm profile, not proof that this short doughnut outlasts them.
Pros
- Round 2.4 mm by 15 m at £5.99
- A one-year manufacturer warranty line is printed
- The shared reviews mention a dispensing eyelet
- Short enough to try before you commit to 88 m
Cons
- The 14,156 ratings are shared with the 88 m listing
- One saved text is about 3 mm line
- Reviewers say 2.4 mm is too thick for some holes
- Snaps at the head and on pavement in the shared sample
Best for: You want a cheap trial of round 2.4 mm and you already know the head allows that diameter.
Less suitable: Anyone treating 14,156 reviews as proof of this 15 m pack alone, or a head marked about 1.6 mm.
Specifications
- Model
- Oregon round 15 m
- Brand
- Oregon
- Price
- ∼£6
- Customer rating
- 4.3/5(14,156)
- Profile
- Round
- Length
- 15 m
- Eyelet
- Round 2.4 mm
- Nylon
- Nylon
- Included
- Line pack
- Colour
- Orange
- Weight
- 80 g
Common questions
Is this a full season of line?
The title is 15 m of round 2.4 mm nylon at £5.99. The listing also sells an 88 m round pack under another ASIN.
Will it fit every strimmer?
The bullet names several brands and says most standard heads. Saved reviews say 2.4 mm is too thick for some holes. The 14,156 ratings are shared with the 88 m listing.
What colour and pack type are printed?
Orange, model 69-362-OR, with a doughnut spool in the bullets and a one-year manufacturer warranty line.
Our view
Oregon’s orange round pack, model 69-364-OR, is 2.4 mm by 88 m at £16.46, and the country attribute says Vietnam. It carries the same 4.3 from 14,156 as the 15 m doughnut, and the 50 saved texts are the same file, including one about 3 mm line. The difference you can use is the length: 88 m is closer to a season of edges than 15 m, at about 19 pence a metre on the stated length. The shared complaints still apply. Reviewers say the line is too thick for some eyelets, snaps at the base of the head, and snaps on pavement instead of wearing down. A one-year manufacturer warranty line is printed, and the weight attribute says 660 g. Buy the 88 m reel when you already know round 2.4 mm feeds in your head and you will use the metres. Skip it if you wanted reviews that describe only this length.
Pros
- Round 2.4 mm by 88 m at £16.46
- About 19 pence a metre on the stated length
- Country attribute says Vietnam, unlike the 15 m pack’s China line
- A one-year manufacturer warranty line is printed
Cons
- The star line and the 50 texts are shared with the 15 m pack
- One saved text is about 3 mm line
- Too thick for some eyelets in the shared reviews
- Snaps at the head and on pavement in that same sample
Best for: You have already run round 2.4 mm in this head and you want more than a 15 m trial.
Less suitable: A first fit you have not checked, or a reader who needs reviews written only about 88 m.
Specifications
- Model
- Oregon round 88 m
- Brand
- Oregon
- Price
- ∼£16
- Customer rating
- 4.3/5(14,156)
- Profile
- Round
- Length
- 88 m
- Eyelet
- Round 2.4 mm
- Nylon
- Nylon
- Included
- Line pack
- Colour
- Orange
- Weight
- 660 g
Common questions
Is the star rating only for 88 m?
The listing line is 4.3 from 14,156, and the 50 saved texts are the same sample as the 15 m Oregon round pack.
What does the cutting-width attribute say?
It says 35 cm. The title diameter is 2.4 mm. The unit-count field says 1.0 count, while the title says 88 m.
Where is it made, on this page?
The country attribute says Vietnam. The 15 m round pack’s country attribute says China.
Our view
This five-edge Oregon pack, model 104885E, is 2.4 mm by 360 m at £53.53, and the bullet does say nylon with aluminium particles even though the title does not say Nylium. The star line is 4.1 from 175 reviews, the lowest in this set. Fifteen of the 43 saved texts are from the United Kingdom. One of those says it cuts tall grass and that brush and saplings need a blade. Another used about 5 m in a couple of hours, preferred Honda line, and reported a poor cut on nettles. A spool arrived partly used, and the buyer marked the stars down for fulfilment rather than for the nylon itself. Country of origin is printed as France and the weight as 1.95 kg. It is a long star roll only if a month of work will finish it, and a weak default if you wanted the 90 m Nylium listing’s larger UK review file.
Pros
- Five-edge 2.4 mm by 360 m
- The bullet names nylon with aluminium particles
- Printed weight is 1.95 kg, closer to a long roll than the 60 g Nylium row
- One UK review separates ordinary grass from saplings that need a blade
Cons
- 4.1 from 175, the lowest star line in this set
- £53.53, the highest shelf price here
- One UK buyer used about 5 m in a couple of hours on nettles
- One spool arrived partly used
Best for: You empty a star roll in regular work and you accept a thinner UK review file than the 90 m Nylium.
Less suitable: A first 2.4 mm spool, or brambles and saplings you hoped the length would solve.
Specifications
- Model
- Oregon star 360 m
- Brand
- Oregon
- Price
- ∼£54
- Customer rating
- 4.1/5(175)
- Profile
- Star
- Length
- 360 m
- Eyelet
- Five-edge 2.4 mm
- Nylon
- Aluminium-particle nylon
- Included
- Line only
- Colour
- Black
- Weight
- 1.95 kg
Common questions
Does the title say Nylium?
No. The bullet does say nylon with aluminium particles. The model is 104885E. The 90 m listing’s item-type name is the one that says Nylium.
What is the star rating on this page?
4.1 from 175 reviews, the lowest count and the lowest score in this set. Fifteen of the 43 saved texts are from the United Kingdom.
What went wrong in UK reviews?
One buyer used about 5 m in a couple of hours and preferred Honda line on nettles. Another received a partly used spool and marked the stars down for that.
How we compared
Scores use the amazon.co.uk star line captured on 19 October 2026, then add or subtract for review volume, a stated diameter, length and profile, and repeated snap, jam or off-title comments. There was no lab cut. The weights below are the buying order: the head limit, the growth, the eyelet, the metres, and whether the stars belong to that length.
1
Head diameter limit
28%The manual or the head has to allow 2.4 mm. A brand list on the pack is not a fit certificate, and a light head supplied with about 1.6 mm often will not take this cord.
2
Vegetation
22%Lawn edges suit round line. Square and star are sold for thicker grass and weeds. That is maker wording, not a timed cut, and nylon is not a blade the manual does not list.
3
Profile and eyelet
20%On square cord the stated 2.4 mm is the side, so the corner is wider. Star line has five edges. Both can be harder to wind and to bump-feed than round.
4
Metres you will use
18%A 15 m doughnut is a trial. About 60 m to 100 m suits a season of edges. A 250 m to 360 m roll is cheap per metre only if you will use it before the nylon dries in heat and sun.
5
Stars tied to this length
12%A star rating only helps when the reviews match this title and this length. A shared pool is not proof of the short doughnut alone, and a handful of ratings is too small to rank a brand.
Independent review
Last updated: 22 October 2026
8 sources checked
2.4 mm strimmer line buying guide
Match the head before the brand. A 2.4 mm strimmer line is a refill for a diameter the manual already allows. Round cord suits lawn edges. Square and star are sold for thicker grass, and the eyelet has to pass the corner, not only the stated side. Buy a short doughnut to try a profile, about 60 m to 100 m for a season, and a long roll only if you will use it. Nylon dries in heat and sun. Stars count only when they belong to that length.
What is 2.4 mm strimmer line?
A 2.4 mm strimmer line is replacement nylon for a head the manual already allows at that diameter. You are refilling a worn spool. You are not choosing a new machine. Start with the head. The maximum diameter is on the head or in the manual. A bullet that names several brands is not a fit certificate. Light cordless heads supplied with about 1.6 mm often will not take 2.4 mm in the clip or the eyelet, even when the pack says heavy duty. Then match the growth. Lawn edges suit round line.
Best for
- A head already marked for 2.4 mm
- Thicker grass when the manual allows square or star
- A long roll you will finish and store out of the sun
Not ideal for
- A cordless head supplied with about 1.6 mm
- Woody scrub that needs the blade in the manual
- An eyelet you have not checked against a square corner
Mistakes to avoid
- 1
Buying on a heavy-duty title
The head limit comes first. A pack can say heavy duty and still be too thick for a clip or an eyelet supplied with about 1.6 mm.
- 2
Reading the square side as the corner
On square cord the stated 2.4 mm is the side. One listing prints a diagonal of about 3.4 mm. The eyelet has to pass that corner.
- 3
Trusting a universal-fit bullet
A list of machine brands is not a fit certificate. Overfilling the spool, or winding two ends to different lengths, is what locks bump feed and adds vibration.
What to weigh up
Head diameter and eyelet
HighThe first check is the maximum line diameter on the head or in the manual. A 2.4 mm strimmer line only belongs in a head already approved for that size. A bullet naming several brands is not a fit certificate. Light cordless heads supplied with about 1.6 mm often will not take 2.4 mm in the clip or the eyelet, and forcing it is a common reason a spool will not feed. Shaped line adds a second measurement. On square cord the stated 2.4 mm is the side.
Profile, growth and metres
HighOnce the head allows 2.4 mm, choose the profile for the growth and the metres you will use. Round line is the usual cord for lawn edges. Square line is sold as more aggressive than round, for thick woody grass and weeds. Star line is sold for a cleaner cut, and square or toothed profiles for denser vegetation. Those are maker descriptions, not a timed cut, and thicker nylon is not a blade. A 15 m doughnut is a trial. About 60 m to 100 m suits a season of edges.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
Thicker grass
You cut thick woody grass on a machine the manual already allows on 2.4 mm square, and you will use a long reel. This 253 m square is that roll, not a short trial.
A short trial
You want the lowest shelf price among packs with at least 1,000 ratings and a stated 2.4 mm profile. Fifteen metres of round line is a trial. The rating pool is shared with the 88 m listing.
Common questions about 2.4 mm strimmer lines
What does 2.4 mm strimmer line fit?
A 2.4 mm strimmer line fits a trimmer or brushcutter head already approved for that diameter. Check the maximum on the head or in the manual before you buy. A brand list on the pack is not a fit certificate. Light cordless heads supplied with about 1.6 mm often will not take 2.4 mm in the clip or the eyelet. If the head is in that smaller class, compare 1.6 mm strimmer line instead of forcing thicker cord through the hole.
Should you buy round, square or star line?
Round 2.4 mm is the usual cord for lawn edges. Square line is sold as more aggressive than round, for thick woody grass and weeds. Star line has five edges and is sold for a cleaner cut, with square or toothed profiles aimed at denser growth. That is maker wording, not a lab result. On square line the 2.4 mm figure is the side, so the corner is wider. One listing prints a diagonal of about 3.4 mm. The eyelet has to pass that corner.
How much 2.4 mm strimmer line should you buy?
A 15 m doughnut is a trial of the profile on a head you already know. About 60 m to 100 m is enough for a season of edges in a household garden. A roll of 250 m to 360 m is cheaper per metre only if you will use it. Nylon dries in heat and sun, so a roll left in a hot shed is wasted length. Buy the metres you will finish, and store what remains cool and out of direct sun.
Do you need to soak strimmer line?
Nylon can dry out and turn brittle. Stihl UK advises a soak of 12 to 24 hours. Older Oregon advice is 24 hours. Some reviewers of long reels also report a soak in a bucket before they wind the spool. Treat that as maker and user advice. It is not a measured increase in life, and a soak will not make 2.4 mm fit a head that is limited to a thinner line.
Is thicker line a substitute for a blade?
No. Use the guard and the cutting accessory the machine maker approves. HSE’s chain-flail bulletin says EN ISO 11806 covers nylon strimmers and single-piece metal blades, not multi-piece metal attachments such as chains. Thicker nylon is not a stand-in for a blade the manual does not list. Woody scrub and saplings that the nylon head will not cut are a reason to stop, fit the approved blade with the harness and guard, or call someone who already does that work.
What should you check before strimming long grass?
Walk the grass and the bottom of hedges before you start. The RHS and the RSPCA both warn that strimmers injure hedgehogs. The Wildlife and Countryside Act 1981 protects a wild bird’s nest while it is in use or being built. Northern Ireland uses the Wildlife (Northern Ireland) Order 1985. The RSPB’s practical hedge caution runs from March to September. Neighbour noise is a statutory-nuisance test under the Environmental Protection Act 1990. Line diameter does not set a legal hour.
Why can two Oregon packs share one star rating?
The Oregon round 15 m and 88 m listings show the same 4.3 from 14,156. The saved review texts match across those two files, and one text is about 3 mm line. Do not read 14,156 as proof of the 15 m doughnut alone, and do not rank cut quality from stars. A 4.8 from only 12 ratings is also too small to place a brand above packs whose reviews match the title and the length.
Who is each length of 2.4 mm line for?
A household with a 2.4 mm head wants 60 m to 100 m in a profile the eyelet accepts. Square and star suit thicker grass when the manual allows that diameter. A roll of 250 m or more suits someone who will finish it and keep it out of the sun. The top pick here is the 100 m square with the largest matching UK review file. Best value is the 15 m round doughnut, the lowest shelf price among packs with at least 1,000 ratings and a stated profile.
Our verdict
The top pick is the Viabrico square 100 m. It leads because 50 United Kingdom texts match this 100 m square title, at 4.6 from 7,316, and the listing tells you to check that the head can take 2.4 mm. That is not a measured cut. Best value is the Oregon round 15 m doughnut, the lowest shelf price among listings with at least 1,000 ratings, one agreed 2.4 mm diameter and a named profile. The 14,156 ratings are shared with the 88 m listing, so the mark is the shelf price, not proof that the short pack outlasts the longer reel.
Best value
View offer
Oregon round 15 m
Lowest shelf price among packs with at least 1,000 ratings, a stated 2.4 mm diameter and a named profile.
Editorial
Editor, DIY & tools
Lawn and garden equipmentStrimmers and brushcuttersamazon.co.uk product listings
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: 22 October 2026
8 sources checked
Guides to 2.4 mm strimmer lines
Guides on what to look for, how to use a product, and common mistakes.
2.4 mm strimmer line buying guideDiameter, profile and length in the order the head can use.Best 2.4 mm strimmer lineA short garden, a rougher petrol cut, and a long roll, and who should skip each.How to fit 2.4 mm strimmer lineWinding, equal lengths, a soak, and the guard knife.Square or round 2.4 mm strimmer lineRound, square or star at the same stated diameter.2.4 mm strimmer line for thick weedsWhen an edged cord stops and the manual’s blade starts.
Related comparisons
Sources
Shelf prices, star ratings and review counts are the amazon.co.uk figures captured on 19 October 2026. The other pages are public UK guidance on line profile, soak advice, vibration and garden safety.
- Stihl UK square 2.4 mm mowing line (retrieved 19 October 2026)
- Oregon UK Nylium Star 2.4 mm 90 m (retrieved 19 October 2026)
- Oregon profile map (retrieved 19 October 2026)
- ManoMano UK trimmer line buying guide (retrieved 19 October 2026)
- HSE chain flails and brush cutters (retrieved 19 October 2026)
- HSE INDG480 hand-arm vibration (retrieved 19 October 2026)
- RHS hedgehog-friendly gardening (retrieved 19 October 2026)
- GOV.UK noise nuisances (retrieved 19 October 2026)
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. The comparison uses captured listings and public UK sources. We did not run a lab test.