BBA APPROVED · UK FACTORY

Gabion Baskets

BBA Tested and Approved for Construction

Heavy-duty gabion baskets and stone cages for garden retaining walls, earth banks, and UK trade jobs. Custom-cut to BS EN standards in Burton-on-Trent. Trade Quotes Welcome

Bulk Discount Full Specs

Product Information:
BBA Certified Gabion Baskets & Walls

Up to 120 years expected life for PVC-coated gabions (BBA Certificate 05/4215) products are tested and approved by the BBA for use in construction fabricated in the UK
BBA Cert: 05/4215 held by partner Link Middle East Ltd

Compare Gabion Baskets

SELECT WIRE DIAMETER
3mm Standard wire thickness for walls up to 5m. Low-cost option. Will result in minor bulges when filled with rocks. Suitable if an architectural, straight edge finish is not required.
4mm 5m+ high & free-standing walls. Use for seating or surfaces that will be walked on. Will give an architectural, straight edge finish when filled carefully with interlocking rocks.
5mm 5m+ high walls & free-standing walls. Use for seating or surfaces that will be walked on. Best for an architectural, uniform and precise finish. For use in public parks. Can be used with rounded stone fill.

The heights in the table above indicate the wire most suitable for the job. For walls over 1.5m, we’d suggest checking with a structural engineer for peace of mind. For cladding over 1.5m, or cladding fixed to a building, you’ll need one. Our wall guide and cladding guide explain everything step by step.

 

ENVIRONMENTAL, STRENGTH & MANUFACTURING
UK Fabrication Burton-on-Trent Factory
Gabion baskets fabricated in Burton-on-Trent at the site we share with Enviromesh, our partner company
BBA Certification Certificate 05/4215
Independently assessed by the BBA for retaining walls, cladding and freestanding walls.
Design Life & Lifespan Expected Life of 70 to 120 Years
Galfan in mild inland conditions: over 70 years (3mm wire) and over 80 years (4mm and 5mm). PVC-coated: 120 years in dry land-retaining walls (BBA Certificate 05/4215)
Where to Use Each Coating
Galfan: mild inland sites / PVC-coated: coastal, sea water and polluted sites

As recommended in BBA Certificate 05/4215, Section 8.5

Tensile Strength 540–770 N/mm² High-Tensile Steel
Electric-welded joints, each at least 75% as strong as the wire (BS EN 10223-8)
Corrosion Protection BS EN 10244-2:2009 (Class A)
Galfan alloy (95% zinc / 5% aluminium) gives better corrosion protection than standard galvanised wire.
Mesh Hole Size 75mm x 75mm Grid
Uniform openings hold stone larger than 75mm securely
Wire Gauge Tolerances BS EN 10218-2:2012
Wire diameters made within BS EN 10218-2 tolerances (3mm, 4mm, 5mm)
Quality Management ISO 9001:2015 Certified Site
Made at our Burton-on-Trent site under an audited ISO 9001:2015 quality management system
Corner Joining CT50 Clips, Helicoils, or Lacing Wire
Supplied with free lacing wire; upgradeable to helicoils for fast assembly
View certificates & standards

Assembly Instructions

Flat-Pack Assembly
Connecting the corners The gabion cages arrive flat-packed. The panels are clipped together.  All you need to do is attach the corners to complete assembly. Compare the assembly options on this blog.
Lacing wire Free lacing wire is delivered with all orders.

PRO: it’s free
CON: time of installation

Helicoils Each cage needs four helicoils (one for each corner). Please order separately.

PRO: looks uniform and quick to install
CON: additional cost

CT50 clips Clips are available in bulk quantities. Recommended for professionals.

PRO: discreet / hidden
CON: requires a tool

Calculate Stone Qty

Questions & Answers

Content Verification & Expert Review
Product technical guidance on this page were compiled by Customer Support Manager Gyopi (Joy) Veres and Sales Support Specialist Erno Szabo, and verified by our founder John Marlen-Summers. You can find our certificates, standards and independent expert review on our Standards page.
Last reviewed: October 2026


How easy is it to assemble a gabion cage?

Very easy. No DIY experience is necessary. The cages are delivered flat-packed. To put them together, you simply lift up the corners and attach them using helicoils. It takes approximately 2–5 minutes per cage.



How many helicoil spirals do I need?

You will need four helicoils to connect the corners. Choose five if you also want to use a helicoil to close the lid. However, most people use the free lacing wire included with every order to close the lid.

Helicoils are sold in lengths of 1m. If the height of your cage does not match, you will need to cut the helicoil to size so that it fits correctly.


What accessories do I need?

  • Assembly: Every order includes free lacing wire to connect the corners and lid, but most of our customers choose helicoils or clips to speed up assembly.
  • Filling: Gabion stone is suitable for projects that require drainage, such as retaining walls. If your project does not require drainage, it is possible to fill with many types of material, including bricks, wood, glass and recycled bottles.
  • Drainage: If you are retaining earth, you should place a layer of geotextile between the basket and the earth. This will help prevent the soil from clogging up inside the cage.
  • Bulging: If your cages have a wire diameter of 3mm or 4mm and you would like to maintain a straight edge, you will need to carefully fill your basket with interlocking stones and select one or more of the following options:
  1. Backfilling panel – inserted into the middle of the cage. It will reduce the pressure against the external wall caused by the stone. They can also help to save money by backfilling the basket with non-decorative material such as rubble.
  2. Corner braces – will brace the corners together, reducing bulging caused by stone putting pressure against the outer wall.
  3. Internal bracing – will brace the front and back, reducing bulging caused by the stone putting pressure from the inside. Internal braces can be made using the free bracing wire that is included with each order.

On every product page, our ‘Frequently Bought Together’ section automatically calculates the essential and time-saving accessories for your cage. Please watch the video at the top of this answer for more information.


How are they delivered?

In most cases, orders under 100kg are sent shrink-wrapped and delivered by DX courier. Orders over 100kg are usually sent on a pallet. We box accessories and smaller purchases and send them via DPD.

Once the order has been picked up from our Burton-on-Trent location, you will receive email and text notifications from the courier with the scheduled day and time for delivery.  For more information, please visit our delivery page.

All orders are sent flat-packed. To install, simply remove the wrapping, unfold and connect the corners together.  Please find examples of customer parcels in our warehouse waiting for pickup below:

Shrink-wrapped gabion orders waiting for courier pickup at our Burton-on-Trent warehouse

Boxed gabion accessories waiting for DPD pickup

Large gabion order strapped to a pallet for delivery


How do I create a curved gabion wall?

Use standard gabion baskets and angle each one slightly against the next, like slices of a cake. Place the first basket, then set the next one beside it so the backs touch and the fronts fan out to follow your curve. This leaves a small triangular gap between each pair of baskets. Join the touching corners with helicoils, fill the baskets with stone, and fill the triangular gaps with stone too. To give the top a neat, closed finish, cut a small piece of mesh panel to cover each gap and fix it with lacing wire. Shorter baskets (45cm or 97.5cm long) give a tighter, smoother curve. See our step-by-step guide to curved walls.


What is Galfan-coated wire?

Galfan is a zinc-aluminium alloy coating: 95% zinc, 5% aluminium and a trace of mischmetal. It protects steel wire from corrosion better than standard galvanising (BBA Certificate 05/4215, Section 8.4). All of our gabion baskets are made from high-tensile steel wire Galfan-coated to BS EN 10244-2:2009 (Class A). Our PVC-coated gabions add a grey polymer coating over the Galfan for extra protection.

See our Standards page for the full specification and certificates.


How long will they last?

It depends on the coating, the wire thickness and where the gabions are used. These figures come from BBA Certificate 05/4215:

  • Galfan-coated baskets, mild inland conditions: over 70 years for 3mm wire, and over 80 years for 4mm and 5mm wire.
  • PVC-coated: an expected life of 120 years in dry land-retaining walls. The BBA recommends coated mesh for sea water, polluted sites or anywhere conditions are uncertain, so PVC-coated is our choice for coastal and waterside projects.

If you’re comparing suppliers, it’s worth asking for the BBA certificate number and the coating class. You can see ours on our Standards page.


How do I fill them?
  • Choose hard, durable stone: Fill your gabion cages with angular quarried stone that locks together naturally (mostly over 80mm and no larger than 200mm). Use our Stone Calculator to figure out your exact tonnage, which is also calculated automatically at checkout for you.
  • Using rounded stones or cobbles: Smooth stones roll against each other and push outward against the wire. If you’re using rounded stone, choose our thicker 4mm or 5mm wire to keep the front face from bulging.
  • Save money with face-packing: Hand-stack attractive, decorative stones along the front face that people see, then backfill the hidden middle with cheaper hardcore, crushed concrete, or brick rubble (just ensure pieces are larger than the 75mm mesh grid or place into a rubble bag).


Do I need a Civil Engineer for my gabion retaining wall?

You won’t normally need an engineer if your wall meets all of these:
  • The structure is lower than 1.5m tall
  • The structure is retaining flat earth
  • The structure is not retaining heavy loads such as roads or buildings
  • The ground does not have a lot of groundwater

You will need a civil engineer’s design if any of these apply:

  • The structure is taller than 1.5m
  • The structure is retaining sloped earth
  • The structure is retaining heavy loads such as roads or buildings
  • The ground has a lot of groundwater

Pro Installation Tip: When building a retaining wall, step or lean the baskets back into the retained slope at a 6° angle (1:10 batter). This uses gravity to resist earth pressure and prevents the wall from leaning forward over time.

If in doubt, we recommend checking your project with a civil engineer.

For more detailed information, see our guide to designing and installing a wall or use our wall builder at the top of this page to help build and design a retaining or freestanding wall.


Do I need a concrete foundation for my gabion wall?

For most garden retaining walls, you do not need a poured concrete base. Gabion baskets are flexible, free-draining structures. Simply dig away loose topsoil down to firm ground, level the area, and lay a compacted 10-30cm (for walls up to 1.5m) or 30-50cm (over 1.5m) sub-base of MOT Type 1 or hardcore to stop the baskets settling unevenly over time.  See our guide to building freestanding and retaining walls for detailed information or use our wall builder.

Gabion wall foundation depths for walls up to 1.5m and over 1.5m

Low projects of 1m or less on firm, level ground, with no heavy loads behind them, can be placed straight onto the ground, though a compacted base gives the best long-term result. See our wall rules for depths, heights and when you need an engineer.


Can I use building rubble inside the cage?

Yes. A popular cost-saving method is “face-packing”: hand-stack attractive, angular stone along the visible front face, then backfill the interior and rear with recycled concrete or crushed brick rubble. Ensure all fill material is larger than the 75x75mm mesh aperture or place smaller rubble into porous rubble bags.


How should multi-tier walls be stacked (staggered or in line)?

Both layouts are used, and our wall builder lets you design either.

  • Staggered (running bond): the vertical joints are offset between layers, like brickwork. Some engineers specify this for retaining walls, as it spreads the load across neighbouring baskets.
  • In line (stack bond): baskets sit directly on top of each other for clean vertical lines. Many engineer-designed walls are built this way, and it’s popular for garden walls, feature walls and cladding.

Whichever layout you choose, fill the baskets with angular stone and join every basket securely to the ones above, below and beside it, as BBA Certificate 05/4215 requires. If your wall needs an engineer (over 1.5m, sloping ground, heavy loads or a lot of groundwater), follow their drawings for the layout. See more real in-line and staggered walls.

Two-tier garden gabion retaining wall built in line by our customer Lisa
In line: Lisa’s two-tier garden retaining wall (May 2023), built from our 4mm made-to-measure baskets. See the case study.

2.45m engineer-designed gabion retaining wall built in line at Eastville Medical Centre, Bristol
In line: a 2.45m mass gravity retaining wall at Eastville Medical Centre, Bristol (2015), designed by Enviromesh, our partner company, using the same 4mm welded gabions we supply. See Enviromesh’s case study.

Three-layer gabion retaining wall with staggered joints, built by Questmore Construction Ltd
Staggered: a three-layer retaining wall built by Questmore Construction Ltd (July 2025) from 97 of our 1m cages. See the case study.


Certificates, PDFs & Videos

Watch our installation and help videos, or see our certificates and standards on our Gabion Standards page. Need advice or help with an order? Contact us 9am–4pm, Monday to Friday. Declarations of Conformity are available on request.

Product Assembly8 videos
Product Installation7 videos
Certification & Specs2 PDFs1 video
Filling Guidance3 videos
  • How to save money filling

  • Hand filling

  • Machine filling

Customer Images