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North American White Oak Finger-Jointed Window Timber

North American White Oak Finger-Jointed Window Timber

Defects such as large knots, hollows and blue stain on raw timbers are removed. Both ends are machined into zigzag finger tenons for interlocking lengthening. After gluing and compression, single-layer horizontal bonding is adopted to produce complete wood profiles for doors and windows. The finished material boasts high mechanical strength. The structural finger tenons comply with national standards with a depth of 8–10 mm, featuring minimal gaps and excellent vapor resistance. This premium Finger-jointed Timber for Aluminum-Wood Composite Windows is specially manufactured for high-grade door and window framework production. Raw timber undergoes strict screening to eliminate natural defects including large knots, hollows and blue stain. The two ends of each timber piece are precisely cut into zigzag finger tenons for interlocking extension. After gluing and compression treatment, single-layer horizontal bonding forms complete integrated wood profiles ideal for aluminum wood composite…