MSR Lumber is stress rated by direct machine testing to ensure a minimum strength performance in engineered applications.

Specifications

SPECIES	SIZE	LENGTHS	FINISHED	CONDITION	GRADES
SPF*	2X3	60'' to 120''	S4S-PET**	KD-HT***	MSR 1650, 2100
SPF*	2X4	92 5/8'' to 120''	S4S-PET**	KD-HT***	MSR 1650, 2100
SPF*	2X6	92 5/8'' to 120''	S4S-PET**	KD-HT***	MSR 1650, 2100
SPF*	2X3	8' to 16'	S4S-DET**	KD-HT***	MSR 1650, 2100
SPF*	2X4	8' to 16'	S4S-DET**	KD-HT***	MSR 1650, 2100
SPF*	2X6	8' to 16'	S4S-DET**	KD-HT***	MSR 1650, 2100

*SPF (Spruce/Pine/Fur) – Balsam Fir – Jack Pine – Black Spruce – Tamarack
**S4S-DET Surfaced 4 sides – Double end trim, S4S-PET Surfaced 4 sides – Precision end trim
***KD-HT Kiln dried – Heat treated