Abstract: The present invention generally relates portable treestand for hunters which comprises a platform and a seat member wherein when the treestand if folded up for easy transport the seat interlocks to the treestand platform creating a shelf useful for carrying gear, backpacks, game, etc. In one embodiment, the platform and/or seat are each of one-piece construction fabricated from a solid aluminum/aluminum alloy workpiece, optionally by a waterjet process. The invention also contemplates improved climbing sticks, also referred to as ladder modules, for use in climbing trees for hunting or other purposes. The module includes one or more support brackets mounted to the support member. The brackets are generally V-shaped and include a number of teeth on the interior surface of the bracket that engage the tree on which the module is placed to prevent the module from slipping on the tree.