Our recommendations
Krinner ground socket U-Fix 91 (screw-in ground socket for squared timber, post base, length 830 mm, for wood size 90 / X mm) 21073, hot-dip galvanized / 8 pieces (1 box)
EUR 219.90To the product
| material | stole |
|---|---|
| Galvanized? | Yes |
| length | 830 mm |
| load capacity | 1050 kg |
| Single screw or set? | Set (8 earth screws) |
This practical set from Krinner contains eight Earth screws each with a length of 830 millimeters. The screws have a load-bearing capacity of 1050 kilograms and are therefore also suitable for a tool shed foundation. Manufactured from hot-dip galvanized steel according to DIN EN ISO 1461, the earth screws are fully convincing in terms of quality. Most Amazon reviewers confirm this. They rate the screws as a “very professional and stable product”. The construction of the foundation seems to be relatively easy with the explanations. In view of all these advantages, the Krinner set deserves first place in our comparison.
Connex HV4336 screw-in sleeves 91 x 91 x 650 mm, hot-dip galvanized
To the product
| material | stole |
|---|---|
| Galvanized? | Yes |
| length | 910 mm |
| load capacity | unknown |
| Single screw or set? | Single screw |
The Connex earth screw has similar basic features as our comparison winner, only it is a bit longer and only available as a single screw. If you decide on this model, it is best to simply order as many copies as you need for your ground screw. The majority of the reviewers on Amazon praised the screw for its robustness and the good price-performance ratio. Especially for smaller projects such as anchoring a bird house or trampoline in the Garden soil the Connex earth screw seems to be ideally suited.
Multi-set of 12 screw foundations Ground sockets Ground dowels Ground screw Screw anchor Ground anchor Drilled foundation Threaded rod Ground anchor Terrace Garden shed / Ø 60 x 2; Length: 600mm M12
260.20 EURTo the product
| material | stole |
|---|---|
| Galvanized? | Yes |
| length | unknown |
| load capacity | unknown |
| Single screw or set? | Set for foundation |
If you would like to buy a comprehensive set for your ground screw directly, the solid, multi-part combination from Maxerio is a good choice. It includes, among other things, twelve earth screws as well Post base and screwing bars. The latter make it much easier for you to screw the screws into the earth and in this way accelerate the assembly of the foundation. The earth screws seem to be able to withstand a lot - one reviewer reports, for example, a 550 kilogram heavy Garden shed(€ 39.99 at Amazon *) To have built on it, which is now apparently absolutely safe. Many customers describe the components of the set as being very stable.
Purchase criteria
material
Most earth screws are made of steel. To be eligible for a solid, reliable foundation that is heavy Shelter or even to support a tool shed, they must also be made of this material. Caution: At Amazon you will sometimes come across simple screw pegs made of aluminum if you are looking for earth screws. However, you should only use these pegs for lightweight tents, and never for extensive ground screws.
Hot-dip galvanizing
It is important that the earth screws are hot-dip galvanized. So-called hot-dip galvanizing is a process that is used to protect steel from rust. In technical jargon, the development of rust is referred to as corrosion. In short, (only) hot-dip galvanized earth screws are corrosion-resistant and therefore stable for a long time.
size
Earth screws are available in different sizes. The differences relate to both the length and the diameter. When comparing several screws, also pay attention to what the manufacturer states with regard to suitability. If there is nothing about this in the product description, be sure to read through customer reviews or ask actively check with the manufacturer or other users to ensure that the screws (dimensions) are suitable for your project fit.
Manufacturer
If you want to buy ground screws from an absolute top brand, we recommend versions from BIOHORT. The company even offers a patented system with aluminum planks, foundation frames and mounting plates as a complete solution. However, the sets from this manufacturer are expensive. Alternatively, you can also rely on earth screws from lesser-known companies - provided that the screws themselves make an all-round convincing impression and are well rated. Earth screws that meet these requirements are available from Maxerio, Krinner, Connex and KOTARBAU.
Single screws vs. set
A screw foundation cannot be built with the ground screws alone. Some accessories are required. For example, post bases are required as fastening material - and you also need an aid with which you can do the foundation construction in a DIY manner. A screw-in bar is suitable for this. Some manufacturers offer extensive sets that are equipped with the most important materials for the ground screw. If you already have the other utensils, you also have the option of ordering the earth screws individually.
costs
Earth screws are not cheap per se. Basically, however, you can get away with it much cheaper with a screw foundation than with a conventional concrete foundation. Depending on the quality, size and manufacturer, each earth screw usually costs between 15 and 30 euros. With the purchase of a comprehensive set, you can often save - in addition to money, time that you would otherwise have to invest in researching good accessories.
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frequently asked Questions
What are earth screws used for?
Ground screws, which are oversized in comparison to other screws, are used to create a foundation for a carport, a terrace or an entire building. For the gardener, a screw foundation can be used to fix a shelter, equipment cabinet or larger Tool shed be of interest. It offers a plus in storm security, making the respective element significantly more resistant.
How is a screw foundation constructed?
A ground screw is made up of screen printing plates on earth screws. Adapters ensure that slopes and other uneven ground are leveled out. An integrated water barrier allows rainwater to run off and prevents the dangerous element from penetrating the tool shed. Basically it is Foundation construction with ground screws on your own within one to two days.
What are the advantages of a ground screw foundation?
No soil sealing is required for a screw foundation. As a result, the local soil ecosystem remains completely intact. Rainwater seeps off directly under the foundation. The advantages also include that no excavation is necessary for a foundation made of earth screws. In addition, it goes hand in hand with a comparatively short assembly time and low costs and is convincing in terms of sustainability.
Which is better: screw foundation or concrete foundation?
The advantages described above are - in each case reversed - the main disadvantages of a classic concrete foundation. Especially when it is clear from the start that sooner or later the dismantling to a green field will take place, there is no getting around the screw foundation. It can simply be twisted out and completely recycled. A ground screw is therefore often the better solution.
When is a screw foundation the right option?
In the case of special construction situations in which the concrete solution is no longer economical (e.g. under the planned foundation running supply lines), the foundation of earth screws forms the ideal Alternative. A screw foundation is also ideal for slopes and uneven ground in general - as is on properties that are difficult or impossible to access for large construction machines such as excavators and caterpillars are.
Where is the best place to buy earth screws?
In principle, ground screws are available in all well-stocked hardware stores and gardening centers, for example at OBI or Dehner. In specialist shops, you have the best chances of acquiring first-class screws - but often at higher prices than at Amazon, for example. The popular mail order company has various earth screws ready for building a stable ground screw.
equipment
Screen printing plates
In addition to earth screws, you also need high-quality screen printing plates for a screw foundation. These are "placed" on the screws. It is important that the special mounting plates are excellently processed, consist of durable materials and thus support the elementary stability of the entire foundation.
Screen printing plate 30mm cut multiplex birch wood base plate (30x30 cm)
EUR 10.90To the product
