Carpenter Oak - The Professional Timber Framing Company
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Our boarding service is designed to complement our timber framing service giving you a more complete building by Carpenter Oak Ltd. The boarding, whose finish harmonises with the timber frame, has the added bonus of providing a water-proof ‘hat’ to the build as soon as the frame is erected, enabling the drying process to begin and work to progress outside of the temperament of the weather. It takes approximately 6 weeks from the date of order for the boards to arrive – some extra time will be needed if you’d prefer them painted.



We supply a choice of white or redwood, depending on your preference. The timbers are sawn on one face using a fine-toothed band-saw to give a fine architectural finish that reflects the surface texture of the frame. This strikes a good balance between the quality of the finish and cost of the materials. Give us a call to discuss in more detail.

Fire Protection

After cutting the timber needs to be fire treated (unlike the Oak frame) in order to pass building regulations. The sawn boards are then subjected to Dricon Euroclass B KD treatment at a cost of approx. £460 / m³ to inhibit spread of flame. They are then kiln-dried to remove most of the moisture to reduce subsequent shrinkage in the boards. It may surprise you to know that the main timber frame structure doesn't require fire proofing - it is sufficiently fire proof on its own. 

Painting and Shrinkage

The next step in the process is to paint one side and two edges of the boards in a dust-free workshop with a base coat to prime the surface and block the pores, followed by top coat in a colour of your choice. We recommend pre painting the boards to minimise the re decoration once the green oak rafters have completed their shrinking (care by the sand blaster will be needed to avoid damaging the painted boards).


The boards are then installed onto the frame after erection by our craftsman. They are butted up tight which will usually results in an average gap between boards of 3–6 mm producing an appearance with added texture which blends in with the feel of the frame. The damp proof membrane is then applied over the boards using 1,000 gauge black polythene secured in place by the first layer of insulation battens (75 x 50) also supplied by us (if you are following the Carpenter Oak Ltd standard details). We recommend black polythene as it enhances the ‘shadow’ gap between the boards.
Horizontal Timber Clad House Exterior with Glazed Roof Lanterns
The Complete Build
We can act as your contractor alongside your architect and builder to design and build a timber frame, alternatively we offer a comprehensive timber frame package, see which services suit you...
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