| Species combinations | Abbreviations | Species included in combinations | Physical characteristics | Color ranges |
| Spruce-Pine-Fir | S-P-F | Spruce (all species except Coast sitka spruce), Jack pine, Lodgepole pine, Balsam fir, Alpin fir | -light weight -work easily -takes paint well -holds nails well -small knots | white to pale yellow |
| Douglas Fir-Larch | D Fir-L (N) | Douglas fir Western larch | -high degree of hardness -good resistance to decay -holds nails well | reddish brown to yellowish brown |
| Hem-Fir(north) | Hem-Fir(N) | Western hemlock Amabilis fir | -works easily -takes paint well -holds nails well | yellow brown to white |
| Northern Species | North Species | Western red cedar | -exceptional resistance to decay -high in appearance qualities -works easily -takes fine finishes | reddish brown heartwood, light sapwood |
| Northern Species | North Species | Red Pine | -works easily | ressish to pale brown heartwood |
| Northern Species | North Species | Ponderosa pine | -takes finish well -holds nails well -holds screws well -seasons with little checking or cupping | pale yellow sapwood |
| Northern Species | North Species | Western white pine Eastern white pine | -softest of Canadian Pines -works easily -finishes well -holds nails well -low shrinkage | almost white sapwood, creamy white to light straw brown heartwood |
| Northern Species | North Species | Eastern Hemlock | -holds nails well -glues easily -takes paint well | reddish-brown tinge to a lighter hue |
| Northern Species | North Species | Trembling aspen Largetooth aspen Balsam poplar | -works easily -finishes well -holds nails well | almost white to greyish-white |