Abstract: A turndown pad having a body (10) with panels (102, 104, and 106) that are received in respective openings (82, 84 and 86) of body (10) and also having covers (118 and 120) that are received in openings (88 and 90) of body (10). Panels (102, 104, and 106) are selected from corresponding families of panels with each family of panels defined by a common profile shape and size. The different members of each family of panels (102, 104 and 106) have selected arrangements of holes (110, 112, and 114) respectively so that different combinations of panels provide different combinations of holes (110, 112, and 114).

Abstract: A turndown pad (20) having a deck panel sub-assembly (22) that is connected to side-wall sub-assemblies (24) by corner pultrusion members (26) and that is supported by a mounting pultrusion member (98). The deck panel sub-assembly (22) and the side-wall sub-assemblies (24) are constructed of lateral arrays of panel members (34). Selected side-wall sub-assemblies (24) are constructed of parallel lateral arrays of panel members (34) and pad (20 can also further include a portal trim member (110). In alternative embodiments, pad (20) can cooperate with an extension (120) and a platform anchor (124).