The best root barriers, compared.
Top pick: ANLEBUY roll, 6 m × 60 cm Best value: aleawol roll, 6 m × 55 cm – Lowest price among rolls that name HDPE: about £34.68, 6 m by 55 cm by 1.5 mm, with no star line. 55 cm is short of a 60 cm trench plus a lip. Updated October 2026.
A root barrier is a vertical sheet, usually high-density polyethylene, or ribbed panels in a trench, used to keep running bamboo inside a line or to steer tree roots off paving. The stable check is stated height. The Royal Horticultural Society wants a bamboo trench at least 60 cm deep and at least 7.5 cm of barrier above the soil, so a 60 cm sheet cannot do both. Thickness is printed as 1.5 mm, 2 mm, or 60 mil, and 60 mil is about 1.52 mm only as a unit conversion. You recognise a suitable piece by that height, the plastic named on the listing, one thickness unit, and length for the perimeter plus an overlap. High-density polyethylene is the name for a bamboo roll. Ribbed panels beside a path face the tree. Fleece and an unnamed compound are weaker evidence. An 18 inch sheet is short of a 60 cm trench, and a 1.2 m trench still needs a lip above the soil. Height, plastic and length are set out in the [root barrier buying guide](/hub/garden-supplies/root-barrier/sub/root-barrier-buying-guide).
A root barrier is a vertical sheet, usually high-density polyethylene, or ribbed panels in a trench, used to keep running bamboo inside a line or to steer tree roots off paving. The stable check is stated height.
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Personal buying guide
Question 1 of 2
What is the job?
The ANLEBUY listing is a 6 m by 0.6 m sheet, 1.5 mm, at £52.99. The bullets do not name HDPE. They say the sheet should sit in the sun for two hours and can then be cut with tin snips, and they claim no tree root can penetrate. No test is attached to that claim. The star line is 5.0 from 1, with no review text. Origin is given as China.
Pros
Cons
Best for: You want a stated 60 cm height and you can accept an unnamed plastic with almost no reviews.
Less suitable: You want the word HDPE on the listing, or more than one written review.
Specifications
Common questions
Does the listing name the plastic?
It says a specially formulated material, 1.5 mm thick. It does not say HDPE.
What size is stated?
Item dimensions are 6 m by 0.6 m and 4.5 kg. The title says 19.7 ft by 23.6 in and 1.5 mm.
What do the reviews say?
The listing line is 5.0 from 1. There is no review text.
The Heicofer listing is a 15 ft by 18 in HDPE roll at £63.34, with 60 mil claimed in the title. The amazon.co.uk line is 4.9 from 24. Review texts are from the United States and Canada. They say the roll lies flatter after time in the sun and that the first cut is hard. One buyer measured about 55 to 58 mil. Several reviews use the sheet as a weed layer or a slider, not only as a root trench. A review heading says 24 in, which does not match the 18 in title.
Pros
Cons
Best for: You need a short 18 in HDPE piece and you will check thickness and height with a tape.
Less suitable: You need 24 in or more of stated height, or a UK review set.
Specifications
Common questions
What size is on the title?
15 ft by 18 in by 60 mil. Item dimensions of 61 cm by 22.9 cm and 2.74 kg read as the parcel. One review heading says 15 ft by 24 in.
Did a reviewer check the thickness?
One United States review says a tape showed about 0.055 to 0.058 in against the 60 mil claim. That is one measurement, not a batch test.
How do the bullets say to extend it?
Cut with a utility knife and overlap horizontally for a longer run. They also say no heavy tools.
The DeepRoot pack is five 18 in by 24 in polypropylene panels, 10 linear feet, at £68.52. The listing line is 4.6 from 304. Of the first 50 review blocks, two are from the United Kingdom. Those two say the panels join easily and that digging is the hard part. One of them snapped a panel with a mallet. Other reviews in the fifty describe ribs holding the panel, a seam torn by a heavy clod, and fig roots that went under. One review talks about 36 in material, which is not this pack. Bamboo is not in the bullets.
Pros
Cons
Best for: You are lining a path or drive with interlocking panels and 18 in of depth is what you measured.
Less suitable: You are circling running bamboo to a 60 cm trench.
Specifications
Common questions
What is in the pack?
Five panels, each 18 in deep and 24 in wide, 10 linear feet in total. The bullet says 90 percent reprocessed polypropylene, a zipper join, a double top edge, and ground lock tabs.
Do the panels need a tool to join?
The listing says a zipper joining system and that assembly is required. It does not list a separate tool for the join. Digging is still required. One UK review snapped a panel by hitting it with a mallet.
Is bamboo named?
The title and bullets name sidewalks, drives, patios, and trees. They do not name bamboo. One Italian review used the panels on a bamboo hedge.
The Dehner listing is a polypropylene sheet of about 3 m by 0.7 m at £33.38. A dimension line adds 0.2 cm. The page contains both 700 g and 275 g. The title names grey and green, while the colour field says Green. The star line is 4.5 from 21, and the written reviews are German. A bullet names bamboo, raspberry, and mint in broken English. An international-seller bullet warns that labelling and language may differ.
Pros
Cons
Best for: You want a short polypropylene sheet for a small bed and you can live with the weight conflict.
Less suitable: You want named HDPE, UK review text, or a length beyond 3 m.
Specifications
Common questions
What is it made of?
The title says polypropylene. Technical details say plastic. The size line is 300 × 70 × 0.2 cm, about 3 m by 0.7 m.
Which weight is on the listing?
Technical details say 700 g. A later feedback block says 275 g. Both figures are present. Neither is resolved.
What do the reviews say?
The listing line is 4.5 from 21. The three written reviews are in German. They describe a vegetable bed, a sheet that is not very stiff, and easy cutting. They are not UK reviews.
The Joewuzun listing is titled as a 20 ft by 18 in by 60 mil barrier at £73.97. Bullets say high-density polyethylene. A material field says Bamboo, and the item-dimension line is 7.49 m by 0.91 m, which does not match the title. The listing line is 4.4 from 62. One UK review is a single positive line. United States reviews include tape measurements short of 18 in and of 20 ft, curling off the roll, raspberry canes that grew under the sheet, and one badly delayed order.
Pros
Cons
Best for: Only if you measure width and length on arrival and the title size is what you need.
Less suitable: You need the stated 18 in and 20 ft without a second measurement, or a listing where the material fields agree.
Specifications
Common questions
Is the material bamboo or plastic?
The bullets say high-density polyethylene. A material-type field says Bamboo. The bullets are the product description. The material field conflicts with them.
Do the size fields agree?
The title says 20 ft by 18 in. Item dimensions say 7.49 m by 0.91 m. Reviews report about 17 to 17.25 in of width and, in one case, 19 ft 9 in of length.
What did the UK review say?
One United Kingdom review on 6 March 2026 says it is tough and will do the job. It gives no measurements.
The Windhager listing is a 3.5 m by 0.65 m root-barrier fleece at £30.10, with a one-sided HDPE coating and 275 g/m². The listing line is 4.4 from 46. Written reviews are from Germany and other European marketplaces, not the United Kingdom. They praise the tape and say the sheet is not rigid. One reviewer would not use it for bamboo. The item-weight field repeats 275 g, which is the grammage number, not a checked sheet weight.
Pros
Cons
Best for: You want a short coated fleece for a bed edge or canes, and you will tape the seam.
Less suitable: You are containing running bamboo with a solid HDPE roll.
Specifications
Common questions
What is this made of?
The bullets say a fleece with a single-sided HDPE coating, 275 g/m², 3.5 m by 0.65 m. A material-features field says Natural, which the bullets do not explain.
Is tape included?
The colour field says With adhesive tape. German reviews describe tape that closes a seam. A separate tape roll is not listed.
Do the reviews treat it as a bamboo barrier?
No United Kingdom review is on the listing used here. A German reviewer said they would not recommend it for bamboo and might use it for mint. Another had used it on raspberries.
The West Bay listing is a 20 ft by 24 in by 60 mil HDPE roll at £52.92. The amazon.co.uk line is 4.2 from 27, and the written reviews are from the United States. Those reviews call the sheet thick, say it curls until it is packed into the trench, and describe uses on grass runners, apple trees, and wisteria. One buyer returned it unused. No connector is listed in the bullets. It is the highest score here because 24 in is the tallest stated height among rolls that also have a review line.
Pros
Cons
Best for: You want the tallest reviewed HDPE roll in this set for a bamboo or tree line and you will measure it on arrival.
Less suitable: You need a ribbed panel join, or a roll tall enough to bury 60 cm and still leave a lip, with UK review text.
Specifications
Common questions
How tall is this roll as stated?
The title says 24 in deep, 20 ft long, and 60 mil thick. The package line is 38.1 × 12.7 × 0.25 cm and 5.69 kg, which is the rolled parcel.
Does the box include connectors?
The bullets do not list connectors. One United States review said aluminium connectors, bought separately, were part of that install.
Where are the written reviews from?
The listing line is 4.2 from 27. The review texts are from the United States. They describe a thick sheet that curls off the roll until the soil is packed back.
The Gainspra listing is a 30 in by 25 ft by 60 mil HDPE roll at £141.04. That is the tallest title height and the highest price in this set. There is no star line and no review text. Bullets name bamboo, tree roots, drives, and paths, and say the sheet can be trimmed for curves. No connector is listed. Thirty inches is about 76 cm, the only height in this set that can bury 60 cm and still leave a lip over 7.5 cm.
Pros
Cons
Best for: You have measured a line that needs more than 24 in of sheet height and you accept a roll with no reviews on the listing.
Less suitable: You want review text before you spend the highest price in the set.
Specifications
Common questions
What height and length does the title state?
30 in by 25 ft by 60 mil HDPE. The package line is 12.95 × 12.95 × 76.2 cm and 7.33 kg.
Is a join kit included?
The bullets say the roll can be trimmed. They do not list tape, mastic, or clamps.
Are there reviews on the listing?
No customer-review line and no review text.
The aleawol listing is a 6 m by 0.55 m by 1.5 mm HDPE roll at £34.68, the lowest price among rolls in this set that name HDPE. There is no star line and no review text. The height on the item line is 55 cm. Bullets describe a trench, backfill, and a cut-to-size sheet for bamboo rhizomes and tree roots. The catalogue rank sits under Baby Products.
Pros
Cons
Best for: You want the cheapest roll in this set that actually names HDPE, and 55 cm of height is enough for the bed you measured.
Less suitable: You need a reviewed roll, or a stated height of 60 cm or more.
Specifications
Common questions
What size does the listing state?
Item dimensions are 6 m by 0.55 m. The title also says 19.7 ft by 21.6 in and 1.5 mm. The material bullet names HDPE.
Is installation described as tool-free?
The bullet says no professional tools, then tells you to dig a trench, set the sheet, and backfill. Digging is still required.
Is there a star rating on the listing?
No customer-review line and no review text are on the listing used here.
The Tasofac listing is a 5 m by 50 cm by 2 mm virgin HDPE roll at £45.99. That is the only 2 mm figure in this set, on a 50 cm height. Bullets also sell it as an impermeable liner for ponds and reservoirs and say rolls can be welded. No welding kit is listed. There is no star line. A question about drinking-water ponds is not answered in the bullets.
Pros
Cons
Best for: You want the 2 mm HDPE claim and 50 cm of height is enough for the line you measured.
Less suitable: You need a taller sheet, a review line, or a liner with a drinking-water statement.
Specifications
Common questions
How thick is it, as stated?
The title and bullets say 2 mm virgin HDPE, 5 m by 50 cm. No test figure is attached to the puncture claim.
Is it only a root barrier?
The title is a bamboo root barrier. The bullets also describe a waterproof geomembrane for fish ponds, landscaping, and reservoirs, and say rolls can be welded.
Is there a star rating?
No customer-review line and no review text are on the listing used here.
Ten amazon.co.uk listings were scored from the shelf prices, stated sizes and review lines on those pages. There is no laboratory test. Stated height against a 60 cm trench is worth up to 40, material class up to 25, thickness as printed up to 15, and review volume up to 20. A listing that contradicts itself loses points. Those four weights sum to 100. The highest score is the top pick, once. Best value is the lowest price among rolls that name HDPE, once. A star line is not a UK bamboo trial when the written reviews are from another country.
Stated height
40%Height printed on the title, set against an RHS bamboo trench of at least 60 cm plus a lip of at least 7.5 cm. A sheet that cannot do both scores lower. None of these listings is 1.2 m tall.
Material class
25%HDPE named for a bamboo roll scores higher than ribbed polypropylene panels, coated fleece, or a sheet that never names the polymer.
Thickness
15%The figure the listing prints: 1.5 mm, 2 mm, 60 mil, or a grammage. Sixty mil is about 1.52 mm only as a unit conversion. No puncture figure in newtons is in these listings.
Review volume
20%The amazon.co.uk star line and review count. A missing star line scores zero. The country of the written reviews is noted, and it does not turn those stars into a UK trial.
Name the job before the price. Running bamboo, a tree beside paving, and a bed of mint are different specifications. Knotweed is not this comparison. Height has to cover the trench and a lip. A star line does not replace that measurement, and it is not a UK trial when the written reviews are from another country.
A root barrier is a vertical sheet or a run of panels in a trench. For running bamboo the usual material name is HDPE. Beside paving the usual form is ribbed polypropylene, with the ribs toward the tree. Amazon.co.uk also lists short polypropylene sheets and coated fleece for mint and raspberry. Those are a different job. Knotweed is not this set. It is listed under the Wildlife and Countryside Act 1981.
The RHS trench is at least 60 cm, plus a lip of at least 7.5 cm. An 18 in panel is 45.7 cm on the panel listing. Burying the whole sheet to hide the gap leaves no lip, and rhizomes can cross the top.
Coated fleece is a light sheet with tape. Weed membrane lies on the soil. Neither is a 1.5 mm or 2 mm HDPE wall. German reviews on the fleece listing already doubt it for bamboo. An unnamed plastic is the same kind of gap.
Several star lines sit next to United States or German review text. That is not a UK result. A missing star line is not a hidden high score. No listing here is a certificate to BS 5837, and none is a knotweed specification.
Match the printed height to the trench you will actually dig, then add the lip. The Royal Horticultural Society wants at least 60 cm of trench for running bamboo and at least 7.5 cm of barrier above the soil. A 60 cm sheet cannot do both. For a large Phyllostachys the same guide treats 1.2 m of trench as ideal, and none of these listings is that tall. Thirty inches, about 76 cm, is the only title height here that can bury 60 cm and still leave a lip over 7.5 cm. That roll has no review line.
Read the polymer the listing names. HDPE is the bamboo-roll name. Ribbed polypropylene is the panel beside paving, ribs toward the tree, which is what the DeepRoot manual specifies. Coated fleece and a sheet that never names the plastic are weaker evidence. A material field that says Bamboo while the bullets say polyethylene is a conflict, not a second product. Keep thickness in one unit. These listings print 1.5 mm, 2 mm, or 60 mil. Sixty mil converts to about 1.52 mm.
Three typical situations, each with a recommendation from this comparison.
You are closing a line of running bamboo and you want the tallest reviewed HDPE roll in this set. The West Bay roll is 20 ft by 24 in by 60 mil at about £52.92, with 4.2 from 27. The written reviews are from the United States. A 24 in sheet still cannot bury 60 cm and leave a 7.5 cm lip.
You are lining a path or drive and 18 in of depth is what you measured. The DeepRoot pack is five ribbed polypropylene panels, 10 linear feet, at about £68.52, with 4.6 from 304. The ribs face the tree. Bamboo is not in the bullets. One UK review snapped a panel with a mallet.
You want the lowest price among rolls that name HDPE, and 55 cm of height is enough for the bed you measured. The aleawol roll is 6 m by 55 cm by 1.5 mm at about £34.68. There is no star line. It is short of a 60 cm trench plus a lip.
The top pick is the West Bay HDPE roll, 20 ft by 24 in by 60 mil, at about £52.92. It has the highest score in this set, 89, because 24 in is the tallest stated height among rolls that also have a review line. amazon.co.uk shows 4.2 from 27, and the written reviews are from the United States. A 24 in sheet still cannot bury 60 cm and leave a 7.5 cm lip. The best value is the aleawol roll at about £34.68, 6 m by 55 cm by 1.5 mm, the lowest price among rolls that name HDPE. That listing has no star line, and 55 cm is short of the same trench-and-lip rule. Neither score is a laboratory trial or a claim that the sheet stops every root.
aleawol roll, 6 m × 55 cm
Lowest price among rolls that name HDPE: about £34.68, 6 m by 55 cm by 1.5 mm, with no star line. 55 cm is short of a 60 cm trench plus a lip.
Editorial
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.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources for this comparison. Prices, stars and review counts are the amazon.co.uk listings captured on 19 October 2026. Page updated 22 October 2026.
Expert source (DIY & tools): Lee Burkhill (Garden Ninja) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
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. Prices, stars and review counts are from the amazon.co.uk listings. This is not a laboratory test.
