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Why use douglas fir cladding?
- Weight 620kg/m3 @18%MC
- Strongest of all the home-grown softwoods
- Durable and very stable
- Perfect for framing, posts & beams and cladding
- Little or no sap on the surface making it great for high contact areas
- Readily available
- Lower price
Why use larch cladding?
- Weight 690kg/m3 @18%MC
- Strong durable timber
- High resin content, best suited for cladding or ground contact.
- Movement in the boards is more likely.
- Getting tougher to source.
SELECT YOUR CLADDING PROFILE
Wide Board on Board
This is fast becoming our most popular cladding option.
It can be fitted with whatever gap between the boards you prefer but our recommend is 50mm as it gives plenty of cover for the boards to shrink and swell throughout the year as the humidity and temperature changes.
To attach to the wall, we offer 45x22mm and 45x45mm battens which can be used in a range of different ways depending on the build. The standard method is to attach the 45x22mm strips vertically to the frame (normally at 600mm spacing) then attaching the 45x45mm strips horizontally on top of the 22mm strips at 600mm spacing, giving the surface the cladding boards are fixed onto.
If you need any help with this, please get in touch and if we can’t help over the phone we can arrange for someone to come to you to ensure you get exactly the right timber you need for your build or project.
Narrow Board on Board
Cladding with cover strips has been the profile of choice for many years and the one we used on our own sawmill shed.
Having the 70mm strip covering the gaps between the boards allows the natural shrinking and swelling of the boards to go unnoticed throughout the year as the humidity and temperature changes.
We recommend the back boards are pushed tightly together to give optimum coverage for the cover strip.
Stainless steel fixings are recommended to increase the life of the timber and avoid any unsightly metal staining.
Larch, Douglas Fir and Western Red Cedar are all naturally durable timbers but if you do want to give them a bit of extra care, Treatex and Auson offer fantastic ranges of long-lasting, nontoxic external treatments. You can find more information lower down on the page.
Single Waney Edge
The rustic natural charm of single waney edge cladding is hard to resist. It is a cladding process that has been around for many, many years and is by far the simplest and cheapest option to clad an external wall.
We aim to give a width (from the back straight edge to the front bark or waney edge) from 150-250mm but there can be some variation in this as the natural shapes of the logs are reflected in the boards.
We recommend a minimum overlap of 50mm on the boards so when working out the coverage required, we use an average of 200mm boards minus the 50mm overlap giving a measurement of 150mm to work out the required coverage.
Shiplap is a planed profile which gives it a nice smooth finish.
It is designed to be fitted horizontally but also able to be installed vertically, with the boards over lapping each other to produce effective water runoff.
We recommend fixing to 45x45mm battens mounted vertically at 600mm spacing.
Stainless steel nails are the best option as they avoid any staining on the timber and improve the life span of the boards.
Treatment is not critical as the 3 timber options we offer are all naturally durable but Treatex offer a wide range of options to colour the wood or a UV oil to help keep the natural colour of the timber.
Shadow gap is a planed profile which gives a smooth uniform finish but requires an extra few processes from us in the sawmill, hence the cost is higher than our off saw range.
Shadow gap can be fitted both horizontally and vertically, but horizontally is most common.
Its profile gives a modern, clean look and is designed so that water runs well off the gap with no way of it getting up and inside the boards.
We offer 45x45mm battens for fitting and 45x22mm if required. There are many different options when it comes to attaching horizontal shadow gap to the walls, the standard method is to use vertical 45x45mm battens at 600mm spacing, attaching the cladding boards to the outside.
Stainless steel fixings are recommended and Treatex and Auson treatment options are available if you want to add a little extra colour or protection to the boards.
USE OUR CALCULATOR TO WORK OUT HOW MUCH YOU NEED
Treatex UV oil penetrates deeply into timber surfaces and, in a similar way to bark, attaches to the wood capillaries providing protection against extreme climate conditions.
Manufactured on a base of refined natural oils such as soybean and sunflower oil and waxes, Treatex UV Oil is designed for use on most vertical timbers and applications (excluding horizontal surfaces such as decking and walkways) and can be used over Treatex Exterior Oils and Classic Colour Collection. Treatex UV Oil is the ideal finish for cladding, doors, windows and other exterior joinery.
Treatex Exterior Oils are manufactured on a base of natural sustainable raw materials including Sunflower oil, Soy-bean oil, natural waxes and are free of toxic substances. Treatex Exterior Oils are the ideal new or renovation finish for decking, cladding, doors, windows, garden structures and other exterior joinery.
Treatex Exterior Oils penetrate deeply into timber surfaces and in a similar way to bark, attach to the wood capillaries providing protection against extreme climate conditions through a highly water repellent, weather and UV resistant* surface that can prevent the formation of cracks and swelling in the surface after treatment.
*please note: Clear is not a UV protective finish and timbers treated only with Clear will break down and bleach in sunlight much quicker than any of the other options in the range. Clear should only be used to overcoat one of the colour options in the Exterior Oils range. For a near clear finish with UV protection, please use ‘Sheer’ or for the best protection, use one of our more pigmented options.
Treatex Exterior Oils are available in the following colours:
Treatex Cedar Oil penetrates deeply into timber surfaces and in a similar way to bark, attaches to the wood capillaries providing protection against extreme climate conditions. It is manufactured on a base of natural sustainable raw material including sunflower oil, safflower oil and soybean oil. Treatex Cedar Oil is designed for use on timbers like cedar and larch.
GREY CEDAR OIL
Treatex Grey Cedar Oil penetrates deeply into timber surfaces and in a similar way to bark, attaches to the wood capillaries providing protection against extreme climate conditions.
Treatex Grey Cedar Oil will immediately enhance the colour of Cedar to achieve the naturally greyed effect that comes with age, whilst still protecting and allowing the timber to mature. This can be maintained through future applications of Grey Cedar Oil or be left to mature naturally over time as required.
DOUGLAS FIR PROTECTION
Treatex Douglas Fir Protection is a solvent free exterior wood finish which offers long lasting weather protection It is manufactured on a base of natural sustainable raw materials including linseed oil, sunflower oil and soybean oil.
It is good for indoor and outdoor use and is ideal for Douglas Fir decking, garden furniture and fences.