Because this credit focuses on "new" wood, products that are 100% recycled content may not be counted as certified wood under MRc7, and should be excluded from the total cost of new wood materials. However, those purchases could qualify for credit under MRc4: Recycled Content.

Some FSC Mix products combine recycled and "new" content, in which case project teams must decide how to classify the product. This is addressed in LEED Interpretation #10372, which states, "Products identified as FSC Mix Credit or FSC Mix [NN] % also have pre- or post-consumer recycled content, the latter of which is commonly reported separately by the product manufacturer. In these instances the project team must choose whether to classify the product (or some fraction of the assembly) as FSC certified or as recycled content; the material cannot contribute to both claims simultaneously."

In other words, if a product is FSC Mix and also has recycled content, project teams have to choose which "environmental attribute" they will use to classify the product, and it (and its dollar value) will either go into an FSC "bucket" or into a recycled-content "bucket."