Dec 31 (Reuters) -: * Ainsworth Lumber : RBC raises target price to C$4.50 from C$4.00; rating outperform * Canfor Corp : RBC raises target price to C$16 from C$14; rating sector perform * Louisiana-Pacific Corp : RBC raises target price to $23 from $20; rating outperform * Norbord : RBC raises target price to C$36 from C$30; rating outperform * West Fraser Timber : RBC raises target price to C$75 from C$67; rating sector perform

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