A post (15, 44, 78, 82, 106) comprising: a base member (17, 48, 84, 108) and a cover member (16, 50, 94, 110) having corresponding snap fit formations (20, 26, 52a, 52b, 52c, 52d, 98) by which the base member and the cover member are fastened to each other, and a slat (22, 130) wherein the edge of the slat is to be received within the base member, the cover member including an end wall (18, 62, 126) with first and second buttressing walls (19, 64a, 64b, 96, 128a, 128b) projecting therefrom, the post characterised by: the base member comprising a base wall (24, 54, 88, 133) with first and second clamping legs (25, 58a, 58b, 102, 132a, 132b) extending therefrom for clamping the slat therebetween, the clamping legs converging inwardly toward each other from the base wall to a respective apex or head (70a, 70b, 100) to present a distance ("X") therebetween; at least one opening (21, 72) formed through the base wall or the end wall for passage of the slat therethrough. wherein the slat is oversized relative to the distance between the apices or heads of the first and second clamping legs whereby forcing the slat through the distance urges portions of the clamping legs outwardly towards the buttressing walls of the cover member to thereby assist in retaining the cover member fast with the base member, and wherein portions of the first and second clamping legs locate between portions of the first and second buttressing walls. a base member (17, 48, 84, 108) and a cover member (16, 50, 94, 110) having corresponding snap fit formations (20, 26, 52a, 52b, 52c, 52d, 98) by which the base member and the cover member are fastened to each other, and a slat (22, 130) wherein the edge of the slat is to be received within the base member, the cover member including an end wall (18, 62, 126) with first and second buttressing walls (19, 64a, 64b, 96, 128a, 128b) projecting therefrom, the post characterised by: the base member comprising a base wall (24, 54, 88, 133) with first and second clamping legs (25, 58a, 58b, 102, 132a, 132b) extending therefrom for clamping the slat therebetween, the clamping legs converging inwardly toward each other from the base wall to a respective apex or head (70a, 70b, 100) to present a distance ("X") therebetween; at least one opening (21, 72) formed through the base wall or the end wall for passage of the slat therethrough. wherein the slat is oversized relative to the distance between the apices or heads of the first and second clamping legs whereby forcing the slat through the distance urges portions of the clamping legs outwardly towards the buttressing walls of the cover member to thereby assist in retaining the cover member fast with the base member, and wherein portions of the first and second clamping legs locate between portions of the first and second buttressing walls. the base member comprising a base wall (24, 54, 88, 133) with first and second clamping legs (25, 58a, 58b, 102, 132a, 132b) extending therefrom for clamping the slat therebetween, the clamping legs converging inwardly toward each other from the base wall to a respective apex or head (70a, 70b, 100) to present a distance ("X") therebetween; at least one opening (21, 72) formed through the base wall or the end wall for passage of the slat therethrough. wherein the slat is oversized relative to the distance between the apices or heads of the first and second clamping legs whereby forcing the slat through the distance urges portions of the clamping legs outwardly towards the buttressing walls of the cover member to thereby assist in retaining the cover member fast with the base member, and wherein portions of the first and second clamping legs locate between portions of the first and second buttressing walls.