Cross Grain Tension

Cross grain tension occurs when the grain inside a piece of lumber is not parallel to the length of the piece. Cross grain is sometimes called run out, slope of grain, or grain deviation.

Image Alternative Text: drawn image of cross grain tension from side view

ASTDM D143-14 (2014) "Standard test methods for small clear specimens of timber," ASTM International, West Conshocken, PA, USA.


Video Examples - 2x8

The middle number on the monitor is force, and the number on the far right is deflection.

Latewood% RPI Maxload MOR MOE MSRD
37.5 4 3964.71 6387.74 1648010.8 0

The middle number on the monitor is force, and the number on the far right is deflection.

Latewood% RPI Maxload MOR MOE MSRD
34.38 2.67 1724.4 2701.33 1278562.65 1

The middle number on the monitor is force, and the number on the far right is deflection.

Latewood% RPI Maxload MOR MOE MSRD
18.75 3.33 3307.54 5242.44 1862785.57 1