| CSI Code | Short Description | Extended Description |
| 06050 | Basic Wood and Plastic Materials and Methods |
| 06060 | Wood Material |
| 06065 | Plastic Material |
| 06070 | Wood Treatment | Fire - Retardant Treatment PreservativeTreatment |
| 06080 | Factory-Applied Wood Coating |
| 06090 | Wood and Plastic Fastening |