Crafty Beaver carries Wolmanized Outdoor Wood. Crafty Beaver treated lumber is KDAT (kiln-dried after treatment) which provides the ability to paint immediately, increased stability and reduced weight. Crafty Beaver carries #1 grade stamped dimension (2×4-2×12) and timbers (4×4, 4×6 & 6×6), D-select grade boards (1×4-1×8) and premium decking (5/4×6). Wolmanized Outdoor Wood is the fifth generation micronized copper azole treatment which has a Limited Lifetime Warranty against insects and decay.