Observed kiln seasoning, preservative pressure treatment and storing of CCA treated 30 Bangladeshi hardwood species for crossarms. It revealed that it was very difficult to kiln season and preservative pressure treatment of thirty species together in a single charge and found that when species of different specific gravity kiln season together there occur some objectionable seasoning degrades, and when treated these species together in a single treatment charge did not conform penetration requirement. There should be species wise timber grading rule, seasoning & treatment schedule.

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