Rated strength. Measured piece by piece.

Machine Stress-Rated lumber for applications where published bending strength and stiffness matter. Specify by Fb–E grade, not appearance alone.

What MSR means

MSR = Machine Stress-Rated (also Machine Stress Rated). Under NLGA SPS 2, each piece is non-destructively evaluated and marked with an Fb–E grade.

Nakina Lumber MSR

Nakina Lumber Inc. has an industry-wide reputation for producing precise, high-quality MSR lumber — known by word of mouth for how consistently good it is.

Clients often specifically ask for Nakina Lumber MSR because of the growing demand for high-quality stress-rated lumber.

Why specify MSR

Piece-level E sorting plus visual checks for trusses, I-joist chords, and high-demand framing.

Current MSR production — Nakina Lumber Inc.

Machine Stress-Rated (MSR) Eastern SPF — each piece mechanically tested and marked with an Fb–E grade. Lengths 8′–16′. 1650 and 2100 MSR in 2×3, 2×4, 2×6; 1950 MSR in 2×8. Visual grades on SPF Dimension Lumber.