Green Oak Heavy Structural Timber Framing
We recognise the emotional rollercoaster ride involved in deciding
to build a new home or make drastic alterations to your existing
home. We know there there is a huge amount of trust required of
the craftsmen that you select to carry out that work. We hope that
our work, a small selection of which is shown on this website, should
speak for itself and, should you entrust your home to us for alterations,
we want you to feel happy with that decision. We would like to be
invited to return to carry out future work and we want you to recommend
our work to your family and friends. So we place a lot of emphasis
on building relationships, and earning trust through the quality
of our work. So please give us a call and drop in for a tour of
our workshop - we are always happy to chat. Please however be prepared
for the 'humble' nature of our work environment (some would call
it primitive!) - we started this business approximately 20 years
ago, working in a slightly converted cattle shed. We have some wonderful
hi-tec modern machinery and highly skilled humans but the workshop
itself remains as it was at the start - a slightly converted cattle
Our lead timber
framer and frame designer is Nigel Harrison."I have been involved
in many unusual carpentry projects over the years. My woodworking
career started many years ago when I was taken under the wing of
a retired traditional coachbuilder, who was keen to share his knowledge,
and who taught me how to build and restore ash internal
car body frames in vintage
cars. I was involved in the restoration of many vintage and classic
cars including Sunbeams, Aston Martins and Lancias, as well as the
construction of the 'vintage' car used in the 'Mummy' films, but
I decided in the mid 90's to change course towards architectural
woodwork. I became interested in building green oak timber framed
structures when my imagination was caught by the strength, beauty,
and extraordinary durability of English Oak timber framed buildings.
I am passionate about preserving traditional carpentry techniques
and using them to construct new, durable, energy efficient buildings,
using local sustainably produced, renewable materials".
down this page for:
3D CAD Drawing and Design
- Methods and Materials
- Glazing Green Oak
- Timber Framed Houses and Extensions
- Green Oak garden rooms, conservatories
- Green Oak pergolas and garden Structures
- Timber restoration and conservation
Framed Houses and Extensions
3 pictures below show a green oak sling brace house extension during
construction. This is a two level extension with the sling braced
construction allowing for usable living space in the top level.
design: Nigel Harrison
New Build House
Shown below is new build green
oak timber frame house constructed locally to us in the Tamar Valley
. This is an unusual frame because an unusually large 10in x 10in
oak dimension was specified.
Self Contained Annexe / House Extension
A green oak self contained annexe built onto a Dartmoor longhouse
shows how infil panels and direct glazing can provide both efficient
insulation and a fantastic light and airy building.
Green Oak House Extension
A green oak garden room extension with a
vaulted full height roof which encorporates a hipped roof at the
house end to allow for the continued use of the existing bedroom
windows. An internal view of the extension is shown below. Architectural
Design by Greg Lean. Timber Frame Design by Nigel Harrison
Below: A green oak extension with character exposed roof structure.
Above and below are internal and external views of the unfinished
vaulted timber frame which is shown during raising on the right.
Green oak timber frame and direct glazing by The Tamar Joinery Company.
above and below is a green oak timber frame used in the restoration
and conversion of a stone barn into a garden office/workshop. The
bare oak self supporting structural timber frame is shown below.
Timber Frame Design: Nigel Harrison
Dartmoor Granny Annexe
Concept and planning was by Chadburn Architect tel: 01566 777592.
Timber frame design: Nigel Harrison
Below: A green oak timber frame house extension during on site
Above: Andy modelling a green oak sling brace!
An interrupted tie beam being helped to slot into place and shown
fully pegged below.
Green Oak timber framed bungalow
below is a green oak timber framed extension to a bungalow in Devon.
The picture shows the green oak structural frame and, below that,
the extension is shown with the green oak frame surrounded by softwood
studwork on which insulation and external finish will be fixed.
This constrution method allows for the building to have an internally
visible load bearing green oak timber frame giving character and
for the timber frame to be surrounded by a highly energy efficient
'envelope' of insulation. The method also allows for easy fixing
of doors and windows and does not require the more complex glazing
system needed if glazing is applied direct to the green oak timber
and the pictures below give a peek at the finished rooms
Timber Frame Designer:
All other building
works: Neil Townsend,
Broadhempston, Nr Newton Abbot, Devon, who can be contacted on 01647
Shown above is double glazed
green oak house extension used to accomodate a swimming pool.
Green Oak Barn extension
is a green oak timber framed extension as a skeleton frame and,
below, a finished view of the side aspect. The green oak frame was
manufactured, raised and glazed by ourselves. All other building
works were by Jonathan Case Builders of Tavistock.
trusses can add character to buildings and can be made in many different
styles. Shown above is a house extension
with King Post trusses made from English Green Oak with curved struts.
We will make up an individual truss or a full roof as required.
units are by Pete White at www.TamarValleyWoodworks.co.uk)
Green Oak trusses add instant
character to a new extension
Below is a green oak king
post truss built for a new timber framed house in West Devon.
And below, the trusses shown in place.
The photo below shows green oak trusses and purlins, combined with
well designed lighting adding instant character to a room.
Below is a more contemporary truss using stainless steel rigging
which looks great with either oak or Douglas Fir.
Green Oak Timber Framed Barns and self contained annexes
Green Oak Porches
A green oak porch on a
side entrance an extension, with seasoned oak external door and
door frame with glazed side panel.
oak veranda with a glazed roof is shown below during construction
Shown below is a green oak veranda with
a glazed roof.
Shown above is
a green oak open porch with a double glazed atrium / walkway giving
access to the adjoining garage
fuel Boiler room/ self contained annexe-
Below and left is a garage/garden annexe with an integral boiler
room for a wood fueled heating system and wood store. This timber
frame, built in West Devon, was made from locally grown green oak
with the roof structure comprising collared trusses with wind bracing
and purlins made from local Douglas Fir.
Timber Frame Design: Nigel Harrison
Green Oak glass roofed pergolas,
with stainless steel laser
cut braces and and external/garden fireplace and chimney made by
us from Corten steel.
This project illustrates
a successful meeting of traditional green oak timber framing techniques
and materials with a highly contemporary modern design. Photos of
the finished structure are shown below including a close up of one
of the laser cut stainless steel braces in the green oak timber
Project architectural designer: Greg Lean
Below: One of the 10in x 10in oak posts with laser cut stainless
Oak conservatories and garden rooms
Glazed Green Oak Conservatory/garden room constructed from locally
grown green oak and glazed by us using Planitherm high performance
toughened low u double glazed units.
This double glazed
green oak conservatory / garden room is beautifully light and airy
from its three glazed sides but has a fully insulated roof allowing
for year round use. Frame
Designer: Nigel Harrison
small green oak garden room above is shown framed and glazed and
waiting for the roof covering
And, below, another project: a green oak timber framed conservatory
being made in the workshop.
photo above shows a green oak direct glazed atrium / entrance porch,
under construction, and below is a green oak conservatory during
St Just, Cornwall - A green oak garden room frame with 8 turned
structural oak posts and a mezzanine floor.
Shown below is the roof structure for the mezzanine floor of the
green oak conservatory/garden room with 8 turned green oak structural
Shown below is one of the hand turned huge structural green English
oak columns which we sanded and waxed and polished on the lathe.
The resulting post is beautiful and amazingly tactile. It would
make an amazing internal or external structural or decorative pillar
or post, or the central spine of a spiral staircase.
Shown below is a double glazed garden room conservatory during
And below, a covered glazed veranda extension
These photos show a current project in progress - the construction
of a green oak conservatory/garden room. We fitted direct glazed
double glazed units to the green oak frame and made the seasoned
oak French doors and windows.
Nigel & Paul measuring the green oak frame for glazing.
Shown above is a green oak double glazed lantern made and fitted
to a green oak garden room extension
A green oak covered veranda with a room to be built above.
The veranda now has a new door - gothic arch made using seasoned
air dried oak with the frame steam bent to shape.