Shakes Wane
Shakes Wane - Related Videos
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FAQs
Because shakes follow the wood grain, annual rings, or heartwood, they can interrupt the continuity of the usable timber section. This interruption is important when engineers judge structural performance, since the defect may correspond with reductions in strength or stiffness. Its location and relationship to the member’s section therefore influence whether the piece is suitable for a particular design use.
Wane affects the geometry of the finished piece by leaving bark or a rounded outer surface where a square edge would otherwise provide usable material. The resulting reduction in effective cross-sectional area can influence how engineers evaluate the member. Consequently, wane is a quality-control concern as well as a visual characteristic, especially when precise section dimensions matter.
Shakes primarily indicate separation within the timber along grain-related features, whereas wane reflects incomplete conversion of the log into square stock. The first raises concerns about continuity and possible losses in strength or stiffness; the second directly affects the available section and edge geometry. Distinguishing them helps grading decisions address the relevant structural or dimensional limitation.
The usable section represents the portion of wood that can contribute effectively to a component’s intended function. Shakes may reduce continuity within that portion, while wane can reduce its effective cross-sectional area. Considering both effects prevents appearance-based assessment alone and gives engineering quality control a clearer basis for judging structural suitability and selecting an appropriate use.
Begin by identifying whether the timber contains shakes, wane, or both, then determine how each feature affects the usable section, appearance, or expected structural performance. The findings can be incorporated into timber grading and quality-control decisions. This sequence links visual identification to an engineering judgment rather than treating every visible defect as equally significant.
Assessment is particularly relevant when selecting wood for structural frames, beams, and joints, where strength, stiffness, and effective section are important design considerations. It also supports decisions involving manufactured timber products, whose quality depends on the condition of the sawn material. In each case, identifying shakes and wane helps match timber quality with the intended application.