Oak Buildings
Oak Building Kits vs Bespoke Frames
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Oak Frame Kits
Pre-cut and pre-jointed in a workshop
Delivered ready to assemble
Often include pegs, braces, posts, and beams
Assembly time: 1–3 days depending on size
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Bespoke Oak Buildings
Designed specifically for your garden
Joinery created by hand/ CNC in a specialist workshop
Usually require a professional oak framer to erect on-site
Assembly time: 3–10 days
Foundations Required
Oak buildings are heavy, so foundations matter.
Common options:
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Concrete slab (best for workshops, studios, summerhouses)
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Concrete or brick piers (common for timber frames)
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Pad stones for pergolas or open-sided structures
In some situations such as close to water or trees, pile foundations may be required
Good foundations prevent racking, movement and moisture damage.
Traditional Oak Frame Jointing
Unlike softwood sheds that use screws, staples, and plated brackets, oak buildings often use:
Mortise and tenon joints
The main post-and-beam connection.
Oak pegs (trunnels or treenails)
Round wooden dowels that lock joints together.
Braces
Angled beams that stop the frame twisting.
Scribing
Hand-fitting curved timbers (only on more traditional builds).
Because oak shrinks as it dries, the joints actually tighten over time, making the structure stronger.
Assembly Process
Step-by-step:
1. Lay and level the foundation
Critical for alignment.
2. Prepare the sole plate
This is a timber ring beam that the oak frame connects to, usually treated softwood but sometimes also
oak depending on the project.
3. Assemble the frame on the ground
Often done “flat” in components:
Wall frames
Trusses
Roof sections
4. Raise the frame
This is the dramatic part (sometimes called a "frame raising").
Large posts and beams are lifted into place:
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Manually for small buildings
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With a beam handler or crane for larger ones
5. Pegging
Once aligned, joints are hammered tight with oak pegs.
6. Roof structure
Rafters, purlins, ridge beam installed.
7. Cladding or infill
Common options:
Oak weatherboard
Softwood cladding
Brick infill panels
SIPs or insulated stud walls for warm rooms
8. Joinery
Windows and doors are fixed to create a
watertight shell
9. Fit Out
Plumbing, electrics and decoration
Assembly Time
(Approximate)
Building Size
Typical Assembly Time
Small shelter / pergola
1–2 days
3×3 m garden room
2–4 days
6×4 m workshop/studio
4–7 days
Large garage or outbuilding
1–2 weeks