Timber Processes


All timber that we use is recommended by TRADA – The leading authority on wood.

What’s under the paint is also critical for durability! Various different products require different joints. The pictures will show which joints are being used on our frames and openers.

To minimse all possible problems customers can have with wooden windows and doors, it is critical that only high grade timber with no knots is used.

Timber should be well settled after it comes from the kiln drying process to rid it of all anomalies and to let it settle in its natural dry state before it’s used.


Equally important is our engineering process, which ensures that windows and doors do not bend and bow. Extra material and labour cutting and finger jointing short elements of wood for the centres and covering it with whole elements to ensure the beauty of the timbers grain is maintained on both faces, inside and outside, concealing all joints.

As all the short bits of wood together reduce the likeliness of bending as the grains go different ways, rather than all going to one side therefore increasing the chance of bowing, ours are all opposing each other and are covered in whole planks to further reinforce and reduce the chance of warping. Don’t forget the Din4 glue we use is stronger than the wood itself so our procedure of gluing all these bits together takes a lot more time to make; but significantly increases the strength, durability, stability and aesthetics of our product


The ideal Moisture Content of wood used for manufacturing Exterior Joinery for the UK climate is between 12% and 16% MC. This ideal is supported by the BWF (British Woodworking Federation) and the BSI (British Standards Institution) standards.

To ensure our success in providing our customers with a good quality durable product, we carefully select each piece of timber and check its MC. This way we secure consistency in the timber that will be used together, and that is also most similar to the environment it will be moving into. If the Moisture Content isn’t in the correct range for its environment, the timber will either absorb moisture and swell or it will dry out and shrink, either way this can leave you with faulty windows or doors that may not keep you nor your property warm and dry and will not be very durable.