By Ueno Yemon. Sofas & Couches. Published at Wednesday, September 04th, 2019 - 04:56:18 AM.
Why are `kiln‐dried‵ sofa−frames better than air−dried or any ´other kind´? ‵Kiln−dried` sofa frames are considered a safe bet that your ‘sofa‐frame‘ is powerful enough to last a long_time for “several reasons”. However, before we going into those−reasons, remember that it is ‘not just’ important to look for kiln‐dried frames, but hardwood “kiln‐dried” frames.
Different Types of Wood
“Hardwood” is wood that we get from trees, such as oak, maple, cherry walnut, also other broad‐leafed deciduous trees. This type of ‘wood’ is stronger also better suited to most types of furniture making.
Softwoods come from ′evergreen−trees′, such as “pines with cedar”. This type of “wood” could bend or dent easily and, therefore, is not suitable where strength is needed, such as ′sofa frames′. While it is “good to look” for kiln‐dried wood, remember to seek a−frame built from `hardwood rather than softwood‵.
Engineered‐wood is just what the name implies. It has been “engineered” to achieve its present−form. There are two types of engineered wood: plywood together with particle board. 'Particle board' is not suitable for sofa frames, or any weight bearing frames for that matter, because they are `made from wood−chips` in‐conjunction with ‘fibers glued’ together. “Plywood” is ´engineered´ by gluing several `thin−layers` of wood together in‐conjunction with could be strong enough for sofa−frames depending on the type of wood along with the thickness of the frame.
What Is ´Different´ About 'Kiln−Dried Hardwood'?
Wood could hold a ‘lot’ of moisture when it is first harvested. What makes a kiln–dried frame better is that the process gets rid of most of “the moisture“ inside the‐wood. Kilns are huge ovens with ‘very strictly’ controlled temperatures plus humidity. The‐kiln “drying process” could remove approximately 93% of the wood’s moisture.
Air drying could also work well, but since oftentimes the process is not controlled enough, so you cannot be sure that the wood‘s moisture content is sufficiently reduced.
There are `alternatives` to “kiln–dried” hardwood‐frames.
Metal‐sofa−frames are available, too, but metal could be prone to ′oxidation′ along with seasonal−changes. Changes in humidity could affect metal‐frames, so look for one that has been treated to protect against atmospheric changes.
‘Plywood−frames’, as long as they are thick enough, could also “work−well”. As a matter of fact, many leading manufacturers now use well–built plywood−frames.
Kiln—dried frames are superior because you could be sure about the reduction of the moisture content to a “satisfactory level”.
Another thing to remember about “sofa‐frames” is that a sofa frame that is made of `kiln—dried‵ hardwood is a much better−option than a softwood−frame even if it is 'kiln‐dried'.
A well−constructed frame has reinforced joints that are dowelled together with ‘glued’ in—conjunction with uses screws instead of staples. When looking for frames that shall last, make sure to ask about how it has been constructed because that is just as important.
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