Multi-Purpose Ground Anchors Screw in - Heavy Duty Trampoline Anchors

In this review the focus is on a simple, heavy duty ground anchor that aims to secure trampolines, sheds, carports and more. The bottom line: this anchor is best for homeowners and DIYers who need a robust, screw-in solution that installs quickly and holds in open soil. The review highlights the anchor's solid 12mm steel construction, fully welded 3in spiral and three installation modes, and explains why those features make it a practical choice for anyone worried about high winds or loose equipment.

Key Features

• Solid construction: The 12mm diameter steel shaft provides a rigid core so the anchor resists bending under load.
• Fully welded spiral: The 3in wide spiral is welded to the shaft for a one-piece assembly that grips soil and reduces loosening over time.
• Three installation modes: Adjustable top ring lets you mount vertically or horizontally, or remove the ring to screw into wood for wooden posts.
• Easy installation: Comes with a 14mm socket and works with a drill/driver so multiple anchors can be set in minutes by one person.
• Rounded spiral edge: Wider, rounded spiral profile makes it easier to turn into the ground while reducing the chance of damage to roots or fabric nearby.
• Chrome plate coating: A protective chrome plating helps resist corrosion and extends service life in outdoor conditions.

Who It's For

This anchor is a good match for owners of trampolines, swing sets, portable carports, greenhouses and small sheds who need a permanent or semi-permanent ground fastener. The easy screw-in installation and included 14mm socket make it attractive to DIYers and one-person installs.

It is less suitable for installers working only in rock or extremely compacted clay where a screw anchor cannot bite into the soil, or for applications that require buried concrete footings or engineered anchors certified for structural building codes.

Pros & Cons

Pros

• Sturdy 12mm solid steel shaft gives a feeling of durability and real resistance to wind uplift.
• Versatile mounting options let you use the same anchor for posts, wood bases, or horizontal tie-downs.
• Fast to install with a drill/driver and the supplied 14mm socket; customers reported quick installs for multiple units.
• Fully welded spiral and chrome plating improve life and holding performance in typical yard soil.

Cons

• Not supplied with wood screws when using the wooden application, so you must provide suitable fasteners.
• Performance depends on soil type; very rocky or dense clay ground can reduce holding strength.

Specifications

Brand	Insaga
Shaft diameter	12mm
Spiral diameter	3in
Length	30 in
Socket size included	14mm
Finish	Chrome plate coating
Installation modes	Vertical, horizontal, or screw into wood

Our Verdict

The Insaga ground anchor is a solid value for homeowners who need a practical, heavy duty screw-in anchor for trampolines, sheds and similar items. Its 12mm steel shaft, fully welded 3in spiral and three mounting options make it versatile and reliable in ordinary yard soils, and installation is fast with the included 14mm socket.

Frequently Asked Questions

Can the anchor be used in wood?
Yes, the top ring unscrews so the anchor can be attached to wood, but wood screws are not included so supply appropriate fasteners.

How is it installed?
Use a drill/driver or breaker bar with the supplied 14mm socket to screw the anchor into the ground vertically or horizontally, adjusting the top ring for your mounting method.

Will it hold up in high winds?
Customers report the anchor performs well in high winds for trampolines and carports when set in suitable soil, though holding depends on ground conditions.