Name: Rhizome / Bamboo Barrier 40 mil Thickness
Rating: 4.62 (13 reviews)

Rhizome / Bamboo Barrier 30 mil Thickness

Rhizome / Bamboo Barrier 40 mil Thickness

HDPE root barrier trench dug along a wooden privacy fence next to a planted garden bed

HDPE root barrier trench installed along a backyard fence line bordering a planted shrub bed

Close-up of an HDPE root barrier trench running along a fence next to newly planted shrubs

HDPE barrier sheeting installed edge-on in a trench along a hedge line to block root spread

Rhizome / Bamboo Barrier 40 mil Thickness

$19.99 - $777.77

$19.99

$19.99 - $777.77

$19.99

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Out of stock

SKU RB-40-Sample

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The Recommended Standard

Our 40 mil bamboo barrier is the most popular thickness in our rhizome control lineup, widely recognized as the baseline standard for effective bamboo containment.

At 3/64″ thick (1.19 mm), this HDPE rhizome barrier delivers a smooth, impenetrable surface that redirects bamboo rhizomes sideways instead of letting them spread through your yard, hardscapes, or neighboring plantings. Made in the USA and UV-stabilized, it’s built to last up to 100 years in the ground.

Bamboo earns its place with fast growth, year-round privacy, and striking good looks, but left uncontained that same vigor becomes a maintenance headache. Easy to cut and simple to join with HDPE seam tape, the 40 mil barrier suits most residential and commercial containment projects, from running bamboo to foundation and putting-green moisture protection.

40 Mil Bamboo Barrier – Product Description

40 Mil Bamboo Barrier — Rhizome Barrier

Professional-grade HDPE barrier engineered to contain bamboo rhizomes, protect foundations, and create clean landscape boundaries. Made in the USA with 100-year in-ground durability.

🇺🇸 Made in USA ☀️ UV Stabilized 🌱 100-Year Lifespan

40^mil

3/64" (1.19 mm) thick

Medium-Duty Barrier

🧭 Not Sure Which Barrier You Need?

Answer a few quick questions and our Bamboo Barrier Selector will recommend the right thickness and depth for your project.

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At a Glance

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Bamboo Rhizome Control Contains lateral rhizome spread effectively

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Manufactured in the USA Domestically produced for quality assurance

☀️

Built-In UV Stabilization Resists degradation from sun exposure

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100-Year In-Ground Lifespan One install, lasting protection

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Easy Joining Joins vertically or horizontally with Bamboo Rhizome Barrier Tape

✂️

Easy to Cut Standard utility knife — no special tools needed

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Chrome-Rolled Deflection Side Superior root-deflection surface

📄 Download Specification Sheet

🎬 Thickness Comparison Video

See how 40 mil compares to other barrier thicknesses

📏 How Deep Should My Barrier Be?

Typical bamboo rhizomes grow into the first 12" of soil. Rhizomes spread the plant (not roots) — so even if the top 12" is the norm, rhizomes can go deeper. Our most common installed depths are 24" and 30".

Certain species in sandy soils can send rhizomes much deeper. For extra safety, we offer barrier depths up to 60" (60 mil only). Consult a certified arborist for your specific bamboo and region.

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A Note About 40 Mil Barrier

Our 40 mil bamboo barrier is appropriate for standard bamboo containment applications. Many bamboo varieties are adequately contained with the use of rhizome barrier measuring 40 mil in material thickness by 24" in depth. For aggressive bamboo species consider our 60 mil bamboo barrier which provides enhanced puncture resistance and higher overall durability.

Applications

40 mil HDPE rhizome barrier is designed to contain bamboo and other invasive species. The 40 mil thickness is widely recognized as the baseline thickness acceptable in effective bamboo containment.

Bamboo is a fantastic garden plant due to it’s ability to grow quickly and provide privacy as well as aesthetic beauty. When bamboo is left un-contained it can spread throughout a landscape providing a major maintenance issue as well as damage to hardscapes or other delicate plantings.

Our rhizome barrier is composed of heavy-duty HDPE and provides a smooth surface which acts as a very effective root-stop. The bamboo rhizomes (roots) will not penetrate the barrier but instead grow along the side of the barrier instead.

Installation Steps

Step 1

Dig the Trench

Dig a trench where you want to plant your bamboo. Remove the topsoil and heavier sub-soil. Avoid tight corners to prevent stress on the barrier material.

Step 2

Prepare the Site

Clear the trench of rocks, roots, and debris. A smooth, clean trench wall helps the barrier sit properly and prevents punctures from sharp objects.

Step 3

Choose Your Barrier

Choose the correct bamboo barrier for your application. We recommend 60 mil and thicker barriers for most aggressive bamboo containment applications.

Step 4

Place the Barrier

Set the barrier in the trench with the wall extending at least 2 inches above grade. This above-grade exposure is critical to prevent rhizomes from escaping over the top.

Step 5

Overlap & Tape Seams

Overlap barrier sections by 4 feet and secure with double-sided HDPE seam tape. Place vertical strips within the overlap to ensure no rhizomes can breach the joint.

Step 6

Backfill the Trench

Backfill with subsoil first, compacting to remove air pockets. Avoid sharp objects (glass, stones, metal, tree roots) when filling. Top with lighter soil and pack firmly.

🔧 Maintenance

Effective bamboo control requires seasonal maintenance. Bamboo rhizomes spread outward from the center plant in spring, summer, or fall depending on your location.

Dig a trench around the planted area, inspect the barrier for any rhizomes that have escaped over the top, and trim them back. Annual inspection keeps containment reliable for the long term.

🚚 Shipping

✅ Free ground shipping on all bamboo barriers

Most orders ship same day if placed before 12:00 PM EST. Transit times are shown in business days during checkout.

5 stars: 10 (77%)
4 stars: 2 (15%)
3 stars: 0 (0%)
2 stars: 1 (8%)
1 star: 0 (0%)

Very stiff. Hard to work with in less-than-hot temperatures.
Thick, sturdy, and I can’t imagine roots getting through or past this.

Rhizome barrier

Bought two rolls. One was fine with a little shipping damage on the end, no big deal. The other one has multiple holes inside the roll and a defect line running down the entire roll. Really bad qc if there even was qc done.

RHIZOME / BAMBOO BARRIER 40 MIL THICKNESS

Great product. I have been using it for many years.

good product compared to others

i was pleased to work with this product. its superior to other root barriers that we have used in past. plan to use again.

Superior Quality

I am grateful I found this liner material, because many products your big box retailers do not measure up when trying to make a garden that will last a lifetime without weeds coming through the Landscaping.
I've graded my lawn so that I have better run off of the groundwater , and now I have a rock garden all the way around the house. There will be no weed compromising my rock garden, because this material is a 40 mil thick plastic barrier.

oversized rhizome barrier

fast shipping !

Best Barrier to keep out Bermuda and Bahia or any invading grass varieties.

Have used these barriers to keep out invading grass (Bahia) from my front flower beds. Before I had to basically weed out my entire bed down to at least 10 inches twice a year to keep the Bahia under control. Now there is no problem. Bahia cannot get in and flower beds look great!!

Great so far.

I'm writing this review based on installation and quality of product. I won't be able to determine if it works to block weeds yet. IT came on a big black roll, and was exactly as described. Install was simple enough only needed a utility knife to cut it.

Terrific Barrier

Tough, durable and effective root barrier.

What some professionals don't know!

We are now adding five 40 mil rhizome barriers - after bamboo was planted two years ago. We were told many times by the professionals that the Alphonse Karr bamboo would stay in one place. This is not true!
However, it does not travel as much as regular bamboo - the rhizomes do move out from the original cluster about a foot at a time befor reemerging.
It would have been unbelievably easy to install five rhizome barriers when first planting each of the five 25 gallon boxes.
It has been a number of months since we installed the first two barriers and not one rhizome has gone under or jumped the barrier! Happy days!

As advertised. Easy to work with

As advertised. Easy to work with

this one barrier

Easy to work with, and good quality

Love It!

Was searching for a long term solution to stop sand traveling through a block retaining wall. Replaced the existing rotted liner with 40 mil barrier.