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 a major
rebuild, 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 primative!) - we started this business approximately
20 years ago, working in a slightly converted cattle shed. We have
introduced some wonderful hi-tec modern machinery and computer controlled
technology for producing high specification joinery but the workshop
remains as it was at the start - a slightly converted cattle shed!
Our lead timber
framer is Nigel Harrison."I have been involved in many unusual
carpentry projects over the years, and I first 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,
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
Shown above and right: a green oak self contained open to the
eaves extension/annexe built onto a Devon longhouse on Dartmoor
is shown here viewed from two sides to show fully how infil panels
and direct glazed units can be used together on a timber frame to
provide both efficient insulation and a fantastic light and airy
building. The front view shows seasoned oak double glazed french
doors and the side view shows the green oak porch mounted on staddlestones.
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
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 below 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 frame.
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 house
and games room.
Green Oak Barn extension
is a green oak timber framed extension front view 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)
Below is a green oak king
post truss built for a new timber framed house in West Devon.
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
Autumn 2014 - 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
Above & below show the green oak timber frame internally and
externally, and the fixed double glazing with the seasoned oak opening
Below is a green oak double glazed lantern made and fitted to a
green oak garden room extension
January 2015 - shown below is a current project- a green oak covered
veranda with a room to be built above. Currently under construction.
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.
The image below was the
concept drawing for a project which included a green oak timber
framed outdoor dining shelter with a glass roof and a large fireplace
with chimney. A second oak frame houses a hot tub and the open area
between the two structures has a removable fire retardant canvas
canopy providing shelter from sun or rain. This project illustrates
a successful meeting of traditional green oak timber framing techniques
and materials with a highly contemporary modern design and materials.
Photos of the construction progress are shown below the concept
drawing, including a close up of one of the laser cut stainless
steel braces in the green oak timber frame.
Below: The design drawing is starting to come to life. Shown
below is the first oak structure (calling it a pergola just does
not do it justice!) which was then topped with a glass roof and
used as a jacuzzi hot tub shelter.
Project architectural designer: Greg Lean
Below: One of the 10in x 10in oak posts with laser cut stainless
Glass roofed pergolas with laser cut stainless steel braces, a
built in fireplace and chimney made by us from Corten steel, and
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 current 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
June 2014 St Just, Cornwall - A green oak garden room 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. Any other ideas
Shown below is a double glazed garden room conservatory during
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 we made the seasoned
oak French doors and windows.
Nigel & Paul measuring the green oak frame for glazing.