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ITL PRIME is based upon NHLA 1F & BTR specifications with a much heavier emphasis on appearance and overall quality. Outline of the major differences between ITL Prime and NHLA 1F & BTR.
ITL PRIME is based upon NHLA 1F & BTR specifications with a much heavier emphasis on appearance and overall quality. Outline of the major differences between ITL Prime and NHLA 1F & BTR.
ITL COMSEL grade is based upon NHLA 1 common specifications with a much heavier emphasis on appearance and overall quality. Outline of the major differences between ITL Comsel and NHLA 1 common.
For further information, see the NHLA Illustrated Guide to Hardwood Lumber Grades.
Northern Red Oak shown.
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