A board assembly for mounting to one or more support structures of a ceiling, deck, floor, or wall. The board assembly includes a board and a mounting member. The board has a length along a longitudinal direction, and first and second side channels that extend lengthwise along the board. The mounting member has first and second flanges biased inwardly toward one another. The first and second flanges are configured to be received inside the first and second side channels, respectively, of the board and to press inwardly on the board to limit movement and warping by the board. A plurality of the board assemblies may be included in a kit. Such a kit may also include a plurality of clip members configured to removably couple the board assemblies to the support structure(s). The mounting member may be constructed from aluminum or an aluminum alloy.