18in Heavy-Duty Ground Anchors Screw in - 4 Pack for Trampolines

In this review the Dolibest 18in heavy-duty ground anchors are assessed for home and garden use, especially where a stronger hold is needed. The single biggest reason to consider these anchors is their fully welded 3in spirals and 12mm solid steel shaft, which are designed to bite into soil and secure items like trampolines, sheds and mobile homes. Installers who want a reusable, repositionable anchor with a supplied 14mm socket will find these straightforward, while those needing extreme industrial-grade anchors may want to compare heavier options.

Key Features

• Dimensions & Compatibility: The 17.5in overall length and 15in ground anchor length make these a practical depth for most backyard installs while the 20mm top ring fits common tie-downs.
• High Quality Construction: Made from 12mm solid steel with a chrome plate coating, the anchors resist corrosion and aim to last longer in outdoor conditions.
• Wider Spiral Design: The 3in spiral diameter and full welding increase surface grip in a range of soil types, improving lateral hold for anchored items.
• User-Friendly Installation: Eyelets unscrew so the supplied 14mm socket can be used with an impact drill or driver to quickly screw the anchor deep into the ground.
• Repositionable: The anchors can be unscrewed and moved, which is useful for seasonal equipment or when rearranging yard layouts.
• Multi-Purpose Use: Suitable for securing trampolines, sheds, carports, kennels and garden structures to reduce unwanted movement.

Who It's For

These anchors are best for homeowners and renters who need a practical, reusable solution to secure trampolines, sheds, dog kennels, garden trellises and similar backyard equipment. The design and included socket make them friendly for DIYers who have an impact driver or are comfortable using power tools.

They are less suited to users who require heavy industrial anchors for very loose sandy soil or large mobile structures where engineered anchors with longer shafts or larger diameters are recommended. If absolute maximum rigidity is required, consider specialized commercial anchoring systems.

Pros & Cons

Pros

• Solid 12mm steel construction with chrome plate offers good durability and corrosion resistance.
• Fully welded 3in spirals provide improved grip and holding power in many soil types.
• Includes a 14mm socket and unscrewable eyelets for quick installation and easy repositioning.
• Versatile for a variety of backyard applications such as trampolines and sheds.

Cons

• Some users report the anchors are not as sturdy as expected in very loose or rocky soils, so performance can vary by ground condition.
• The 15in embedded length may be insufficient for extreme wind loading or very soft ground without additional anchoring methods.

Specifications

Our Verdict

The Dolibest 18in ground anchors are a sensible, cost-effective choice for homeowners who need reliable anchoring for trampolines, sheds and other backyard gear. Their solid steel construction, fully welded spirals and included socket make installation simple and the anchors offer good value for typical garden and lawn uses, though performance depends on soil type.

Frequently Asked Questions

Can I install these anchors with a hand tool?
Yes, the eyelet unscrews and you can use the supplied 14mm socket with a ratchet or an impact driver for easier installation.

Are these anchors suitable for trampolines?
Yes, customers report they work well for securing trampolines, but holding power will depend on soil firmness and local wind conditions.

Can the anchors be repositioned?
Yes, they are designed to be unscrewed and moved so you can relocate equipment seasonally or as needed.