Maximum Hold for High-Stress Anchoring Jobs

When failure isn’t an option, the 900mm GR14 Pro II anchor is built to perform in cyclone zones, loose sand, or soft clay. Designed for extreme conditions, this is GroundGrabba’s longest and most aggressive anchor—ideal for tiny homes, site offices, and other high-risk assets. Drop it in, drill it down, and know it’s staying put.

Commercial Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Heavy Duty)

Commercial Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Heavy Duty)

check_circle Text with iconHeavy-duty hot-dip galvanised steel construction

check_circle 15 mm shaft with 40 mm wide flights

check_circle Fits 1" AF socket + impact wrench

check_circle Highest Peak pull-out tested harder ground: >1000 kg*

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 (4 Reviews)

check_circle Our longest flighted anchor—built for deep grip in sand or harsh terrain

check_circle Perfect for tiny homes, containers, site offices, and high-stress tie-downs

check_circle Up to 7× grip of a spike stake in sand or clay

check_circle Suits site sheds, containers, and temporary buildings

check_circle Compatible with high torque impact wrench's or torque drills

check_circle GR14L spec: 1"AF Hex, 15.5mm shaft with 41mm hex collar

check_circle Designed for max hold in cyclonic winds, soft ground, or load-sensitive applications

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Commercial Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Heavy Duty)

Commercial Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Heavy Duty)

$149.99
$149.99
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More Information

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What you Get

  • 1 Pack of 2x GroundGrabba Pro II Commercial (900mm)
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How They Work

How They Work

This is currently our top-of-the-range Commercial product. Our Industrial commercial earth ground anchor range (GR14) works by penetrating the ground and forming an inverted conical shape of earth-holding grip within the substrate.

When subjected to extreme uplift forces, unlike fully-threaded anchors that can fail catastrophically, our auger-designed earth anchors tend to lift in a controlled failure mode. This generally provides advance warning before total failure, as the auger section still needs to carve its way through the compacted earth above.

Compared to our general GR13 range, the GR14 shafts are thicker, the hex heads are larger, and available lengths include 450mm, 600mm, and 900mm.

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Set Up  

How To Deploy

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Specifications

*GroundGrabba Commercial GR14 Series have been certified in accordance with AS4100 and A2159

  • Made of H1018 Carbon Steel
  • Galvanised for anti-corrosion
  • Weight 1.5kg
  • Length 900mm
  • Shaft thickness 15.5mm
  • Flights (spirals) 12.5mm wide, 3mm thick
  • 1"AF hex head with collar
  • 41mm diameter collar
  • Diameter flights 38.5mm
  • Can screw through 30mm washer hole 
  • Fully welded flights and forged hex head 
  • Hold down capacity
  • Weight: 1.5kg
    Dimensions: 90 × 4.5 × 4 cm
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Grabbing Power

Hold Down Capacity 

In our tests, we have found that if we compare same length spike stake to a GR14 of the same length and girth, then the difference ranges from around X3 to X7 in holding power! 

See the complete test chart here

GroundGrabba Commercial L (GR14UL). These are vertical load tests 

Still not sure which GroundGrabba to use? Contact us 1300988655 or use this form.

IMPORTANT***Please note that these figures are a guide only.  The results are vertical lift absolute momentary peak readings and you should allow a decent safety margin.   Ground types vary. Through the depth of one ground anchor the ground can be of different densities therefore different anchoring characteristics.    These all rely on correct deployment.

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Recommendations

Recommended Tools to hire or own to help with installation: 

NB. These models were available at the time of writing.

For driving these into the ground, we recommend a high-torque impact wrench. Consider models like:

For driving these into the ground, we recommend a high-torque impact wrench. Consider models like:

  • Makita 40v TW001GZ-40v Brushless 3/4" Impact Wrench.
  • Milwaukee M18 FUEL 2867-20
  • Use a masonry drill at least the same length as the GR14 you choose for pilot holes in harder ground.

Important Note:

GroundGrabba Commercial range is designed for heavy-duty use with a tradie quality heavy-duty impact wrench.

Please note that these are not toys. Ensure you have a powerful drill, especially for hard ground conditions.

Uses & Benefits

Maximum Hold When You Need Maximum Certainty

The 900mm GroundGrabba Commercial Pro II is built for big jobs—like securing containers, tiny homes, and structures exposed to extreme conditions. It drills deep into sand, clay, or unstable soil with confidence. Powered by your impact wrench and a 1” AF socket, this is the anchor of choice when failure is not an option.

Maximum-Strength Ground Anchoring System

When Everything Depends on Staying Put

The GroundGrabba Commercial Pro II delivers unparalleled holding power with its extended 900mm (3ft) shaft design. Field-proven during extreme weather events—including cyclones—these heavy-duty anchors provide critical security for portable buildings, site sheds, and valuable assets where failure simply isn’t an option.

Engineering That Outperforms

Our legendary auger technology creates a deep, inverted conical earth grip that dramatically outperforms standard anchoring methods. Unlike conventional threaded anchors that can fail without warning, the GroundGrabba Commercial Pro II features controlled-failure technology—providing early warning signs before maximum stress is reached, giving you time to act.

Ideal Applications:

  • Portable buildings & site offices ("dongas")
  • Relocatable homes & modular structures
  • Mobile homes
  • Shipping containers & storage solutions
  • Industrial equipment & machinery
  • Solar panel arrays & renewable installations
  • RVs & caravans during extreme weather
  • Construction site infrastructure
  • Temporary roadways & access solutions
  • Heavy-duty signage & barriers

The GroundGrabba Advantage:

  • Maximum penetration – 900mm shaft creates superior holding power in all soil types
  • All-terrain performance – Works in sand, dirt, clay, rocky ground, and even snow
  • Industrial-grade materials – 15mm shaft and reinforced hex head withstand extreme force
  • Quick install – No concrete required, install in minutes with common power tools
  • Reusable – Fully recoverable and reinstallable
  • Lifetime warranty – Built to last, backed for life

Trusted in the Field

“I recently purchased GroundGrabba Commercial 900mm Pro II's to hold down a number of our site sheds. We just experienced Cyclone Alfred and I’m super pleased to say our sheds didn't budge. I also like the fact these are reusable.” – Russell B.

Each pack contains TWO heavy-duty Commercial Pro II anchors, giving you matched pairs for balanced, reliable securing.

Based on real-world use in cyclone zones—no lab tests, just serious results.

How Does It Compare?

Model Length Socket Size Flights/Threaded? Use Case Summary
Commercial Pro 450mm 1" AF Flights Small sheds, ground mats, event gear
Commercial Pro I 600mm 1" AF Flights Sheds, fencing, site gear
Commercial Pro II 900mm 1" AF Flights Larger sheds, containers, high-wind sites
Threaded 450mm 450mm 24mm (nut) Flights + Threaded Top Shaft Signage, art, base plates
Threaded 600mm 600mm 24mm (nut) Flights + Threaded Top Shaft Sculptures, modular structures
Threaded 900mm 900mm 24mm (nut) Flights + Threaded Top Shaft Remote gear, sandy terrain, soft soil

Watch the 900mm Anchor in Action

Don’t leave it to chance. Choose GroundGrabba when everything needs to stay exactly where you put it.

Trusted in the Field

“I recently purchased GroundGrabba Commercial 900mm Pro II's to hold down a number of our site sheds. We just experienced Cyclone Alfred and I’m super pleased to say our sheds didn't budge. I also like the fact these are reusable.” – Russell B.

Each pack contains TWO heavy-duty Commercial Pro II anchors, giving you matched pairs for balanced, reliable securing.

Based on real-world use in cyclone zones—no lab tests, just serious results.

Don’t leave it to chance. Choose GroundGrabba when everything needs to stay exactly where you put it.

From the founder:

Hi, I’m David Levine, inventor of GroundGrabba. In 2017, Susu and I set out to create purpose-built ground anchors. Today, our range secures everything from tents to tiny homes. We back our steel anchors with a Lifetime Replacement Warranty* and a 100% RISK-FREE 12-month return policy. Whatever you need to anchor, we’ll keep you grounded.

Customer Reviews

Based on 2 reviews
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K
Kerry Bowden
Cyclone proofed tiny house

A few months ago I moved into a new tiny house on wheels (8.4m), with a deck on a trailer also (9m), and a solar system also on a trailer (6.3m). I live in SE QLD, and a cyclone was the furthest thing from my mind at the time. Then Alfred hit. My biggest learning from that experience is that I needed some serious ground anchors and tie downs in place. After extensive research, I came to the conclusion GroundGrabba products was exactly what I was after - serious anchorage, something I could install myself, and removable and reusable (ie relocatable). Nothing else seemed to come close.

David could not have been more helpful, with multiple phone calls and emails while I shared photos and details of what I needed. He guided me as to the most appropriate products, and provided so many helpful tips and support. As someone new to this, that was as valuable as the ground anchors themselves. Now they're all in place, under tension with tie downs, I am absolutely sure I have the best products for the job.

With the tool recommended on the product page, the anchors went in easily. They are so solid and well designed. It's also not difficult to remove them, so I'm very comfortable that when the time comes, I'll be able to relocate them without any hassles. Can't recommend these ground anchors highly enough for any large items that need to be secured.

Hi Kerry,

Thank you so much for taking the time to share your experience with our GroundGrabba products. We are thrilled to hear that they have been able to provide the necessary anchorage for your tiny house, deck, and solar system. It's great to know that our products were easy to install and can be removed and reused, making them perfect for relocating.

Best,
David and the GroundGrabba Team

R
Russell Birleson
Dongas Survived Cyclone Alfred

I recently purchased GroundGrabba Commercial 900mm Pro II’s to hold down a number of our site sheds.

I had numerous site sheds to secure ranging from 3x5m to 6 x 12m. We just experienced cyclone Alfred and am super pleased to say our sheds didn’t budge. I also like the fact these are reusable.

Next time we need to set up and anchor down site sheds we’ll use GroundGrabba again.

Highly recommend!

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