Southern Pine Grade Descriptions | Southern Pine Council™ | 1-504-443-4464

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Southern Pine Home

Southern Pine Grade Descriptions

Based on SPIB Grading Rules

Dimension Lumber: 2" to 4" thick, 2" and wider

Prime Dimension: 2" to 4" thick, 2" to 12" wide

Timbers: 5" x 5" and larger

Mechanically Graded Lumber - Machine Stress Rated (MSR) Lumber: 2" and less in thickness, 2" and wider

Mechanically Graded Lumber - Machine Evaluated Lumber (MEL): 2" and less in thickness, 2" and wider

E-rated Structural Laminations: 2" and less in thickness, 2" and wider

Glued Lumber: 4" and less in thickness, widths vary by product

Scaffold Plank: 2" and 3" thick, 8" and wider

Stadium Grade: 2" thick, 4" to 12" wide

Seawall Grades: 2" to 4" thick, 6" to 14" wide

Marine Grades: 1" to 20" thick, 2" to 20" wide

Decking, Heavy Roofing and Heavy Shiplap: 2" to 4" thick, 2" and wider

Boards: 1" to 1-1/2" thick, 2" and wider

Industrial Lumber: 2" and thicker, 2" and wider

Structural Lumber: 2" and thicker, 2" and wider

Radius Edge Decking: 1-1/4" thick, 4" to 6" wide

Finish: 3/8" to 4" thick, 2" and wider

Flooring, Drop Siding, Paneling, Ceiling and Partition, OG Batts, Bevel Siding, Miscellaneous Millwork