900mm Round Flange Ground Screw
£24.99
In stock & dispatched next working day
Length
900mm
Diameter
76mm
Flange Size
160mm
Material
Galvanised Steel
Wall Thickness
2.0mm
Thread
M16
No digging
No concrete
Build immediately
Most decking and shed projects require 4–9 screws
Not sure how many ground screws you need for your project? Try our ground screw calculator for guidance.
🚚 2–3 Day UK Delivery – calculated at checkout
We accept
Heavy-Duty Galvanised Steel Foundation, No Concrete Required
The 900mm round flange ground screw is a professional-grade, no-dig foundation solution designed for decking, garden rooms, fencing, pergolas and light structural builds across the UK.
Manufactured from hot-dip galvanised steel and engineered for strength in typical UK soil conditions, this screw provides a fast, clean and reliable alternative to traditional concrete footings, allowing you to install and build immediately.
- No excavation.
- No curing time.
- No mess.
Why Choose The 900mm Ground Screw?
Build Immediately
Install and start construction the same day, no waiting for concrete to cure.Clean Installation
No spoil removal, minimal disruption to lawns, paving or landscaped areas.Engineered For UK Conditions
Designed to perform in firm clay, mixed soil and typical domestic ground types.Corrosion Resistant
Hot-dip galvanised steel protects against long-term moisture exposure.Removable & Reusable
Can be unscrewed and relocated without damaging the surrounding ground.Compatible With DIY & Professional Installation
Suitable for manual driving tools or machine installation for larger builds.
Ideal Applications
Decking subframes
Garden offices and small garden rooms
Pergolas and timber structures
Fence and gate posts
Modular sheds and outbuildings
Signage and lightweight steel frames
Temporary or relocatable buildings
If you're building a larger insulated garden room or multi-point load structure, consider the 1200mm version or request load testing.
Technical Specifications
Designed for bolt-down timber or steel connections via the integrated flange plate.
Length
900mm
Diameter
76mm
Flange Size
160mm
Material
Galvanised Steel
Wall Thickness
2.0mm
Thread
M16
Load Capacity & Ground Conditions
Ground screws derive their strength from interaction with the surrounding soil.
Load capacity varies depending on:
- Soil type
- Installation depth
- Ground moisture
- Load distribution across multiple screws
For small domestic builds, this size is commonly sufficient when correctly spaced.
For structural projects, commercial builds or engineer-specified works, we recommend on-site pull testing to determine calibrated safe working loads for compression, uplift and lateral forces specific to your ground conditions.
Installation Guidance
- Can be installed using a manual ground screw tool for smaller projects
- Machine installation recommended for multi-screw layouts
- Suitable for most firm, compacted soil types
- Not recommended for solid rock without pilot drilling
- Always check for underground utilities before installation
Why Ground Screws Instead Of Concrete?
Traditional concrete footings require:
- Excavation
- Spoil removal
- Mixing or delivery
- Curing time
- Weather dependency
Ground screws eliminate these steps while providing immediate structural support — reducing labour time and project delays.
For many domestic and modular builds, they are the faster and more predictable solution.
Not Sure How Many You Need?
Screw quantity depends on:
- Structure size
- Load distribution
- Beam layout
- Ground type
Use our Ground Screw Calculator to estimate layout and spacing before ordering.