Complete Ground Anchor System for Secure Portable Buildings

This all-in-one kit gives you everything needed to tie down tiny homes, site offices, and shipping containers with confidence. Featuring heavy-duty GroundGrabba anchors, commercial-grade cables, Closedhooks, and turnbuckles, it’s a fast and reliable alternative to concrete footings. Drill-powered installation means you can set up or relocate quickly, while hot-dip galvanised steel components ensure long-lasting corrosion resistance.

  • 900mm 4piece Commercial grade anchors with turnbuckle tie downs and hooks in packaging on a white background
  • Set of metal anchors with packaging labeled 'Commercial Anchors' on a white background.
  • 4piece 600mm Set of metal anchors with turnbuckle tie downs in packaging labeled 'Commercial Grade Anchors' on a white background.
  • 6piece 600mm Set of metal hooks and stakes with turnbuckle tie downs in a branded box in the background
  • Person in pink safety vest walking towards a portable modular building on a construction site.
  • Person drilling in a GroundGrabba Commercial 900mm ground Anchor to support her tiny home
  • GroundGrabba- tie-down-point-central-hole-for- anchoring-angled-off-set-for second-anchor-hook-02
  • Person drilling steel ground anchor with steel cable looped through shipping container anchor point.
  • Steel ground anchor with steel cable looped to shipping container
  • Steel ground anchor with steel cable threaded to shipping container

Ground Anchor System – Tiny Homes, Site Offices & Shipping Containers

Ground Anchor System – Tiny Homes, Site Offices & Shipping Containers

check_circle Heavy-duty GR14 600mm or 900 mm earth anchors

check_circle Includes CH14 hooks + full tie-down kits

check_circle Assists in securign assets in sand, clay, or cyclone zones

check_circle Peak pull-out tested: 400 - 1000 kg* Depending on model and ground type

*These values represent the absolute...READ MORE

* These values represent the absolute peak readings recorded during our in‑house tests. For an accurate assessment, we recommend performing your own site‑specific tests and applying an appropriate safety margin. Results will vary depending on soil type, installation method, and conditions.

⚠️ Every site is different. Wind exposure, soil conditions, and structure design all affect anchor requirements.

🧭 Customers are responsible for assessing their site conditions and ordering the quantity of anchors required for a safe installation.

$436.99
$436.99
SAVE Sold out

build Check your parts: make sure the socket size and other parts match your chosen GroundGrabba.

science We recommend trialling your chosen ground anchor first if buying a quantity. Fees will apply to changes and returns, see our returns policy.

 (4 Reviews)

Helps to secure your tiny home or transportable building with confidence. This complete ground anchor kit includes heavy-duty drill-in anchors and tie-down componentsβ€”perfect for wind-prone areas and mobile structures.

check_circle Engineered for strength

check_circle Complete tie-down system

check_circle Impact wrench driven and easy to install

check_circle 100% RISK FREE 12 Month Money Back Guarantee

check_circle Lifetime Replacement Warranty

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Closed-Hook-Tie-Down-Point-GroundGrabba-adaptor-galvanised-01

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900mm 4piece Commercial grade anchors with turnbuckle tie downs and hooks in packaging on a white background

Ground Anchor System – Tiny Homes, Site Offices & Shipping Containers

$436.99
$436.99
SAVE Sold out
View full details

More Information

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What you Get

What’s in the 4-Anchor Kit:

  • 4x GroundGrabba Commercial 600 or 900mm Earth Anchors
  • 4x Galvanised ClosedHooks CH14
  • 4x Heavy-Duty Tie Down Kits (cable, clamps, turnbuckle)

OR

What’s in the 6-Anchor Kit:

  • 6x GroundGrabba Commercial 600 or 900mm Earth Anchors
  • 6x Galvanised ClosedHooks CH14
  • 6x Heavy-Duty Tie Down Kits (cable, clamps, turnbuckle)


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Additional Information

Additional Information

🧭 Important: Ground and wind conditions vary. Customers are responsible for assessing their site and ordering the quantity of anchors required for safe installation.

GroundGrabba’s Portable Building & Tiny Home Ground Anchor Kits are ideal for securing lightweight and semi-permanent structures to the ground in high-wind or off-grid conditions. Whether you’re anchoring a tiny house, a site office, a demountable, or a shipping container home, this system offers a strong, simple, and removable solution.

Installation is easy:

Using a high-torque drill or impact wrench you can drive each GroundGrabba Commercial Pro II earth anchor into the ground quicklyβ€”no digging, concrete, or specialist tools required.

Tie-down connection:

Once installed, use the included stainless steel cable kit to connect each anchor to your structure. Each kit includes 4 or 6 X 600 or 900mm GroundGrabba Commercial, ClosedHook bow shackle, turnbuckle, clamps, and a 1.5m stainless steel cable with a crimped loop for quick setup and tensioning.

Need flexibility?

We also offer alternative configurations or bulk options for commercial and trade customers. Just get in touch!

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Specifications

GroundGrabba Commercial Pro I 600mm (GR14M)

  • Made of H1018 Carbon Steel
  • Galvanised for anti-corrosion
  • Weight 1.05kg
  • Length 600mm
  • Shaft thickness 15.5mm
  • Flights (spirals) 12.5mm wide, 2mm thick
  • 1" AF hex head with collar
  • 40mm diameterΒ collarΒ 
  • Diameter flights 38.5mm
  • Can screw throughΒ 30mmΒ washer holeΒ 
  • Fully welded flights and forged hex headΒ  (with no hole through the hex head)
  • Hold Down Capacity (Link)
    Dimensions: 45 Γ— 4.5 Γ— 4 cm

GroundGrabba Commercial Pro II 900mm (GR14L)

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

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

ClosedHook GR14:

  • Made of mild steel
  • Hot Dipped Galvanised, anti-corrosion protection
  • 96 grams each
  • 100mm total length
  • 55mmΒ total width
  • 3.5mmΒ plate thickness
  • 35mm x 33mm inner rope hole diameter
  • 45 degree raised loop angle
  • 1000kg rating
  • Lifetime Replacement Warranty

Tethering Cable Kit:

Jaw-Jaw Turnbuckle 1000KG (working load).

  • 1.5m x 6mm Stainless steel cable (1,000kg working load).
  • Bow Shackle (1,000kg working load).
  • Cable clamps 316 Stainless Steel.

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Grabbing Power

Hold Down CapacityΒ 

In our tests, we have found thatΒ 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!Β 

See the complete test chart here

GroundGrabba Commercial PRO I 600mm (GR14UM). These are vertical load testsΒ 

GroundGrabba Commercial Pro II 900mm (GR14UL). These are vertical load testsΒ 

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

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

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How They Work

    Learn More...

    Built for Strength. Engineered for Peace of Mind.

    Our Portable Building & Tiny Home Ground Anchor Kits are designed to securely tether mobile and semi-permanent structures to the ground using high-strength drill-in anchors and heavy-duty connection hardware.

    🧭 Important: Ground and wind conditions vary. Customers are responsible for assessing their site and ordering the quantity of anchors required for safe installation.

    Ideal for:

    • Tiny homes
    • Shipping container buildings
    • Modular and demountable structures
    • Off-grid shelters
    • Portable site offices
    • Dongas
    • Caravans and trailers
    • Mobile Homes


    Each anchor is installed using a high-torque drill and features a 600 or 900mm shaft engineered for soft or sandy ground. Paired with galvanised ClosedHooks and our custom Tie Down Connection Kit, this is a no-nonsense, all-in-one solution to stabilise your structure against wind, storms, or daily movement.

    * Please note these are not for ground supporting structures like foundations or footings

    Each anchor is installed using a high-torque impact wrench.

    Paired with galvanised ClosedHooks and our custom Tie Down Connection Kit, this is a no-nonsense, all-in-one solution to stabilise your structure against wind, storms, or daily movement.

    Product Details & FAQs

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    tools Needed

    All Commercial Pro GroundGrabbas (GR14 series) require a 1" AF impact socket with a high-torque impact wrench.
    Do not use low-power drills, as correct installation requires the torque only an impact wrench can provide.

    For the Tiny Home - portable kit you will also need a small adjustable wrench to tighten up the stainless steel cable clamps.

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    Can you deliver to my address if I'm not in a metro area?

    Yes. We ship Australia-wide with Australia Post from our warehouse in Willawong, QLD. Regional and remote deliveries can take longer, so check the Australia Post delivery time calculator (https://auspost.com.au/parcels-mail/calculate-postage-delivery-times) for your postcode. Orders ship with Authority to Leave unless you request a signature. Parcels left under Authority to Leave are at your risk once Australia Post marks them as delivered. You can request Signature on Delivery before dispatch through our contact form. Signature on Delivery is available for an additional Australia Post fee – see current fees: https://auspost.com.au/personal/sending/parcels/sending-in-australia/optional-extras

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    When will my order arrive?

    Orders ship from our warehouse in Willawong, QLD via Australia Post. Orders placed before 11:00am QLD time (Mon–Fri) are ready for dispatch the next business day. For delivery times to your postcode, use the Australia Post delivery time calculator (https://auspost.com.au/parcels-mail/calculate-postage-delivery-times). Tracking is emailed once your order ships.

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    What warranty is included?

    All steel GroundGrabba anchors carry our Lifetime Warranty if they break or wear out in normal use, for all buyers including business and commercial customers, when used within the product's rated limits and our installation instructions. Coatings, galvanising and finishes are never covered, and misuse and overloading aren't covered. Keep your GroundGrabba invoice (or your authorised stockist's invoice) as proof of purchase; the warranty is for the original purchaser and isn't transferable. To claim, send us photos and a short explanation through our contact form, and we'll decide, at our discretion and our cost, whether to replace it, refund you or ask for the item back. The GroundGrabba Lite and accessories such as carry bags, drill bits, socket drivers, carabiners and guy ropes have a 12-month manufacturer's warranty. Details: /pages/lifetime-warranty

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    What is your return policy?

    Personal-use purchases can be returned or exchanged for change of mind within 12 months of delivery, even if used – with or without the packaging. Please contact us first for approval (/pages/contact). For a return you pay the return freight plus a $19.95 handling fee. For an exchange you pay the return freight, the $29.95 exchange handling fee, the freight to send you the replacement, and any price difference. Faulty items and warranty claims are at our cost. Business and commercial purchases can't be returned for change of mind. Purchases made before 1 November 2026 come with a 12-month risk-free return at our expense, even if you've used the product – contact us within 12 months of delivery and we'll arrange the return, pay the return freight and refund you for the product, with no handling fee. Full details: /policies/refund-policy

    From the founder:

    Hi, I'm David Levine, inventor of GroundGrabba. In 2017, Susu and I set out to create purpose-built ground anchors that were faster, stronger and easier to use. Today, our range secures everything from tents and temporary structures to tiny homes and commercial infrastructure worldwide. Engineered in Australia and proven in the field, GroundGrabba gives you a reliable anchoring solution for applications large and small. Whatever you need to anchor, we'll help you get it right.