Industrial shelves should by no means be produced of feeble trees since this involves a high risk of breaking. Instead, trees of hard fibre which are resistant to humidity or moisture should be used. Of the types of trees, we and our providers choose to use oak and acacia.
A multi-purpose shelf is of the same size as modular ones and could be assembled and dissembled, too. What makes multi-purpose shelves distinctive is that you can use them anywhere and anyway you wish.