SO42 garden-building foundations
Ground screws, concrete and raised timber-frame bases for garden rooms, offices, cabins and substantial garden buildings—with clear prices and a full 10-year guarantee.
Illustrative garden-room example
A level room within a living landscape
Brockenhurst plots can combine mature roots, low-lying lawns, watercourses, gravel routes and National Park character. A dry surface on one visit does not describe the whole year, and the building's support layout remains just as important.
JustBases makes the options manageable. Give Craig the building type, approximate dimensions and SO42 address and we will compare concrete, ground screws and raised timber before fixing the price.
What are you planning?
Three easy steps
We listen first, use a site visit only when helpful, and keep the scope clear.
Share what the garden building will be used for, its rough footprint and postcode.
We consider levels, water, roots and access without expecting you to provide technical answers.
The agreed foundation is set out and completed to the required position and level.
Choose the foundation, not the complication
You do not need to choose one now. We compare the building, garden and access, then explain the simplest suitable option.
A full-area base for substantial rooms whose construction is designed around continuous concrete support.
From £695 for 8' × 6' 48 ft² / 4.46 m²
Driven steel points beneath a compatible support frame, reducing the need for full-area excavation.
Installed screws from £1,180 for 8' × 6'; frame quoted separately 48 ft² / 4.46 m²
A treated base for suitable timber rooms where clearance or changing levels make a frame useful.
From £840 for 8' × 6' 48 ft² / 4.46 m²
Useful guide prices
These are current guide prices for standard installations. The written quotation confirms access, levels, preparation, ground conditions, support layout and any optional DPM or service conduit.
Get your exact written price| Base size | Concrete | Raised timber | Installed ground screws |
|---|---|---|---|
| 10' x 8' 3m x 2.4m 80 ft² / 7.43 m² | £965 | £1,195 | £1,280 |
| 12' x 8' 3.6m x 2.4m 96 ft² / 8.92 m² | £1,075 | £1,375 | £1,340 |
| 12' x 10' 3.6m x 3m 120 ft² / 11.15 m² | £1,195 | £1,585 | £1,400 |
| 14' x 10' 4.2m x 3m 140 ft² / 13.01 m² | £1,295 | £1,820 | £1,460 |
| 16' x 10' 4.8m x 3m 160 ft² / 14.86 m² | £1,445 | £1,995 | £1,500 |
| 20' x 10' 6m x 3m 200 ft² / 18.58 m² | £1,695 | £2,415 | £1,600 |
Ground-screw prices are for the installed screws only. A suitable timber or galvanised-steel support frame can be added to the written quotation. Raised-timber prices use suitable concrete or composite posts. Your quotation confirms exactly what is included.
Easy to start, free to ask
Tell us the building type, approximate footprint and Brockenhurst address. Craig will compare the suitable bases and provide a written quotation.
Talk to Craig about your garden room base
Not sure which base you need? Craig will listen to what you are planning and explain the easiest next step.
Online quote requests are normally answered within 24 hours, excluding weekends.
Just give us your contact details and a short description of what you want to build. We will guide you through the rest.
Your enquiry
Garden room base installation in Brockenhurst
Clear reassurance
The JustBases guarantee covers our installation workmanship and the foundation materials we supply, subject to the written quotation. It is separate from the garden-building supplier's warranty.
Realistic timing
Ground screws are normally installed in one day. Concrete bases are normally installed within two working days, with the next-stage timing confirmed for the project.
Frames available
We can supply a treated timber or galvanised-steel support frame where it forms part of the agreed ground-screw solution.
Genuine feedback on related building-base work
"Good standard of workmanship. Friendly and efficient. Prompt response for estimate and fitted into our timescale. Will be using the firm in future and thoroughly recommend them."
— Verified Customer
Checkatrade · SP6 · 2019-09-16
Work listed by the source: Concrete base for new summerhouse
"Craig and Luke made an excellent job of shed base. Highly professional, friendly and efficient. Thank you."
— Verified Customer
Checkatrade · SO42 · 2018-07-23
Work listed by the source: Concrete slab for shed
"Craig extremely courteous throughout. He and team very tidy, efficient and obliging. Would recommend without hesitation."
— Verified Customer
Checkatrade · BH17 · 2017-10-31
Work listed by the source: Base for summer house
Match the base to the space
The building name is only the starting point. We also consider its footprint, support arrangement, intended use and the garden it needs to fit.
Year-round rooms need accurate support beneath insulated floors, doors and glazing without creating avoidable garden disruption.
Suitable base options
Concrete
Firm full-area support for buildings whose specification requires a slab.
Ground screws and frame
Can suit compatible rooms where lower excavation and a rapid follow-on programme are useful.
Raised timber
A practical option for selected timber rooms on uneven ground.
Brockenhurst water, tree roots and the desired finished height are considered together rather than used to push every project towards one system.
Ask about this base →
The perimeter rails and internal bearers of a substantial cabin need dependable, correctly positioned support.
Suitable base options
Concrete slab
Appropriate for cabins designed for complete continuous bearing.
Screw-supported frame
Can support compatible bearer lines through a designed timber or steel grid.
Raised timber platform
Useful for suitable cabins where ground levels favour a structural frame.
Send the manufacturer's base drawing when available; it need not be ready before your first conversation with Craig.
Ask about this base →
Equipment and acoustic or service build-ups can change floor load and stiffness requirements.
Suitable base options
Concrete base
Often best beneath heavier equipment and concentrated loads.
Designed screw frame
Can work where floor and support grid are specified for the intended use.
Raised timber base
May suit lighter specialist rooms with known spans and loads.
Describe the equipment and Craig will keep any technical follow-up focused on what affects the foundation.
Ask about this base →
A pod's structural bearing positions, intended use and relationship to the garden guide its foundation.
Suitable base options
Ground screws and frame
Often suitable for defined supports and lower-excavation installation.
Concrete foundation
Useful when the pod supplier specifies a full slab.
Raised timber platform
Can support suitable lighter pods on an agreed frame.
Overnight or letting use and the National Park setting may need additional checks, which can run alongside foundation advice.
Ask about this base →Local ground context
BGS New Forest coverage describes laterally variable Palaeogene sands and clays, plateau gravels and valley deposits. Around Brockenhurst, low-lying lawns and watercourses mean a summer surface should not be taken as proof of winter drainage.
Mature trees, garden fill and previous structures add garden-scale variation. We use local context to compare the base systems for the actual room and position.
You do not need to arrange a ground report before enquiring. Ordinary observations and an optional photograph are enough to begin.
Access handled with you
Access can include gravel drives, cattle grids, open verges, overhanging branches and restricted village parking. Inside the garden, established trees and wet lawns may influence the route to the footprint.
A few photographs can answer much of this. Craig will arrange a visit when turning, unloading or levels need to be seen before the price is finalised.
Helpful if you have them—not required before you call:
Useful local guidance
Much of Brockenhurst lies within the New Forest National Park planning area. Whether permitted development applies depends on the complete building, property and intended use.
The Brockenhurst, The Weirs and Sway character appraisal identifies the local conservation context. Use it to inform the exact proposal rather than treating every SO42 garden alike.
Planning information is a practical starting point, not legal or planning advice. Confirm the position for the exact property and building with the relevant authority.
Choosing the building
These New Forest and south-coast businesses are useful for choosing the building. Ask for its precise footprint and floor-support details.
New Forest garden offices, rooms and timber buildings.
Timber garden-building range with a Lymington display site.
South-coast garden rooms and bespoke buildings.
These are independent research links and not endorsements or partner businesses. Confirm current service area, building design and foundation requirement directly.
Service area
Our service covers Brockenhurst and surrounding SO42 villages and Forest-edge properties.
Straight answers
A building type, approximate size and postcode are enough to start.