Abstract: A livestock building design includes fans configured to provide an interior of the livestock building with a dissipation capacity of between 50 and 250.

Abstract: A tree stand includes a tree stand post. In one embodiment, the tree stand post has a non-tubular cross-sectional shape. In one embodiment, a tree claw and cinch line posts are integral with the post as a single unitary body. In one embodiment, the post has a plurality of longitudinally extending oblique curved portions.

Abstract: A tree stick carrier for a tree stick having steps projecting from a post comprises a flexible panel having openings spaced to correspond to the steps and a retainer coupled to the panel to retain the panel in a state wrapped about the post with the steps projecting through the openings.

Abstract: A swing comprises a seating surface, and a rigid member coupled to a central portion of the panel are such that the seating surface extends completely about the rigid member The rigid member is to be coupled to a flexible member from which the panel is suspended. The rigid member extends upward from the seating surface sets to space the seating surface from an omnidirectional pivot of the flexible member. The rigid member supports a handle or manually grippable member.

Abstract: A tree stand comprises a metal post, a lower platform pivotably coupled to the metal post for pivoting between a platform extended position and a platform folded position, an upper seat pivotably coupled to the post for pivoting between a seat extended position and a seat folded position, and a rubber or polymeric interface having a thickness of at least ? of an inch and contacting the post and at least one of lower platform when lower platform is in the platform folded position, and the upper seat when the upper seat is in the seat folded position.