When Grade B is the correct purchase
One-way shipping, floor stacking, closed loops with forklift handling, and anything where appearance is irrelevant. A B-grade 48×40 carries 2,200 lb dynamically — the same as many suppliers' A — and costs roughly 20% less than ours.
Where B is wrong: beam racking above head height, audited unrepaired-wood requirements, and automated handling where an eighth of an inch of deck height variation stops a line. In those three cases pay for A and sleep properly.
