Treatability of hem-fir and Douglas-fir lumber in relation to storage time after kiln-drying

The effect of storage after kiln-drying on the success of treatment with chromated copper arsenate (full-cell process) was investigated on lumber of Douglas-fir, mountain hemlock, and five species of hem-fir. Treatment of some species appeared to improve slightly after 1 month of storage, but the differences declined with additional storage. The results suggest that storage as long as 6 months after drying does not adversely affect subsequent preservative treatment.

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