Van Acht door frames are finger jointed. Finger jointing increases strength and stability and also optimizes the use of timber.
Timber optimization and waste reduction are part of Van Acht’s green policy.
What is a finger joint?
A finger joint, also known as a comb joint, is a woodworking joint made by cutting a set of complementary, interlocking profiles in two pieces of wood, which are then glued. The cross-section of the joint resembles the interlocking of fingers between two hands, hence the name “finger joint”. The sides of each profile increases the surface area for gluing, resulting in a strong bond, stronger than a butt joint but not very visually appealing. Finger joints are regularly confused with box joints, which are used for corners of boxes or box-like constructions.
Source: https://en.wikipedia.org/wiki/Finger_joint
Benefits – Straightness and Stability
Finger jointed lumber is becoming a very popular and desirable product in the construction industry’s repertoire of engineered wood products.
Finger jointing results in much higher quality and stronger pieces and components, while dramatically reducing waste in our industry where the cost of raw materials is rapidly increasing.
The two most important advantages of finger jointed lumber are straightness and dimensional stability. With short lengths of wood joined into longer pieces, the warping and twisting associated with regular dimension lumber is minimized. The finger jointing process allows the removal of strength reducing defects to produce a product with higher engineering properties.
Great Reasons to Use Finger jointed Lumber:
- Strength
- Finger joint lumber is as strong as, or stronger than conventional dimension lumber;
- Stability
- Warping and twisting is significantly minimized;
- Straightness
- Each piece is straight and true, as any bow or crook is absorbed in the joint;
- Nailing Surface
- Finger joint studs provide a better nailing surface as wane (bark or inconsistencies) on the edge is minimized along the length of the stud;
- Quality Control
- Rigorous assurance controls ensure that the joints are tested for strength, water resistance and conformance to standards;
- Appearance
- Finger joint lumber generally has less prevalence of visually displeasing attributes such as wane and discoloration;
- Consistency
- It is made from small pieces of high quality wood ensuring the end product is always of consistent premium quality; and
- Environmental Friendliness
- It reduces waste by salvaging excellent quality wood from short pieces of lumber that would otherwise be discarded. Finger jointing maximizes the value extracted from every tree harvested.
Source: http://brink.bc.ca/products/benefits/