Veneer traders are voicing concerns over a potential surplus of hemlock, according to industry newsletter Random Lengths.

The situation may arise as a result of Trus Joist‘s recent decision to switch from Douglas fir to hemlock for LVL flanges used in its I-joist products. It is thought that other manufacturers may follow suit and, sources say, it will take more hemlock to yield the same volume of veneer suitable for LVL than Douglas fir.

Plywood manufacturers will be able to pick up some of the surplus, but some veneer traders remain concerned that the increased volume may affect sales and prices.