The Tree Anchor Wire Fixing System is a discreet, underground tree anchoring kit designed to securely stabilise rootballed and container-grown trees in both soft and compacted soils. Used widely in urban landscaping schemes, housing developments, public realm installations, parks, and highway planting projects, this system ensures trees establish successfully while minimising movement from wind or human interference.

It’s a proven method for supporting trees without staking above ground, preserving the visual aesthetics of open spaces and reducing trip hazards. The galvanised steel ground anchors and tensioned wire system provide long-lasting performance, while rubber rootball protectors ensure the rootball remains intact and protected during establishment. 

Rootball Wire Kits & Tool Requirements

GTRBK1W – Small Trees (Up to 12cm girth)
Suitable for Trees: Up to 2.5m height / Up to 12cm circumference
Kit Includes:
3 x SG Galvanised Anchors
2m Galvanised Steel Wire
1 x Galvanised Ratchet Tensioner
Rubber Rootball Protectors

Tools Required:
Drive Rod  - GTHDR01
Ratchet Tensioner - GTRT1
Anchor Loading Hooks - GTAH1 or GTAH2

GTRBK5W – Medium Trees (12–25cm girth)
Suitable for Trees: 2.5m – 4.5m height / 12–25cm circumference
Kit Includes:
3 x SG Galvanised Anchors
4m Galvanised Steel Wire
1 x Galvanised Ratchet Tensioner
Rubber Rootball Protectors

Tools Required:
Drive Rods - GTHDR05 or GTPDR5
Ratchet Tensioner - GTRT1
Hand Rod Remover - GTHRR
Anchor Loading Hooks - GTAH1 or GTAH2

GTRBK10W – Large Trees (25–45cm girth)
Suitable for Trees: 4.5m – 7.5m height / 25–45cm circumference
Kit Includes:
3 x SG Galvanised Anchors
5m Galvanised Steel Wire
1 x Galvanised Ratchet Tensioner
Rubber Rootball Protectors

Tools Required:
Drive Rods - GTHDR10 or GTPDR10
Ratchet Tensioner - GTRT1
Hand Rod Remover  - GTHRR
Anchor Loading Hooks - GTAH1 or GTAH2
Anchor Loading Jacks - GTALJ1 or GTALJ2

GTRBK20W – Extra Large Trees (45–75cm girth)
Suitable for Trees: 7.5m – 12m height / 45–75cm circumference
Kit Includes:
3 x SG Galvanised Anchors
8m Galvanised Steel Wire
1 x Galvanised Ratchet Tensioner
Rubber Rootball Protectors

Tools Required:
Drive Rod - GTPDR20
Ratchet Tensioner - GTRT2
Hand Rod Remover - GTHRR
Anchor Loading Jacks - GTALJ1 or GTALJ2

GTRBK90W – Heavy Duty Trees (75cm+ girth)
Suitable for Trees: 12m+ height / 75cm+ circumference
Kit Includes:
3 x SG Galvanised Anchors
12m Galvanised Steel Wire
1 x Galvanised Ratchet Tensioner
Rubber Rootball Protectors

Tools Required:
Drive Rod - GTPDR20 or GTR32P-R32SH
Ratchet Tensioner - GTRT2
Hand Rod Remover  - GTHRR
Anchor Loading Jack - GTALJ2

Product Codes | GTRBK1W, GTRBK5W, GTRBK10W, GTRBK20W, GTRBK90W

Suitable Tree Height & Girth |

• GTRBK1W: Up to 2.5m height, up to 12cm girth
• GTRBK5W: 2.5m – 4.5m height, 12cm – 25cm girth
• GTRBK10W: 4.5m – 7.5m height, 25cm – 45cm girth
• GTRBK20W: 7.5m – 12m height, 45cm – 75cm girth
• GTRBK90W: 12m+ height, 75cm+ girth

Anchors | 3 x SG Galvanised Ground Anchors per kit

Wire Length | 2m (GTRBK1W), 4m (GTRBK5W), 5m (GTRBK10W), 8m (GTRBK20W), 12m (GTRBK90W)

Wire Material | High-tensile galvanised steel wire

Tensioning | 1 x Galvanised Ratchet Tensioner per kit

Protection | Rubber Rootball Protectors included

Installation | Subsurface anchoring, suitable for soft and compacted soils