Which two log categories are defined by whether surfaces must be clear and sound or may have blemishes?

Which two log categories are defined by whether surfaces must be clear and sound or may have blemishes?

• A. Pulp logs and stave logs
• B. Veneer logs and grade logs
• C. Veneer logs and pulp logs
• D. Grade logs and stave logs

Answer: (B)

In log grading, the end use drives how strict the surface quality must be. Veneer logs must have clear, sound surfaces because veneer is peeled into thin sheets and any blemish shows up on the final sheet, lowering yield and grade. Grade logs, on the other hand, can have blemishes since they’re intended for solid wood products where surface flaws are less critical. This distinction defines two categories: veneer logs and grade logs. The other options—pulp logs and stave logs—are defined by different end uses and quality criteria, not the clear-surface requirement.

In log grading, the end use drives how strict the surface quality must be. Veneer logs must have clear, sound surfaces because veneer is peeled into thin sheets and any blemish shows up on the final sheet, lowering yield and grade. Grade logs, on the other hand, can have blemishes since they’re intended for solid wood products where surface flaws are less critical. This distinction defines two categories: veneer logs and grade logs. The other options—pulp logs and stave logs—are defined by different end uses and quality criteria, not the clear-surface requirement.