Product Information

For simple non-structural concreting where surface finish is not important, Bastion Post Mix is recommended for fence posts, garden lights, swings, clotheslines, and letterbox posts.Coverage1 bag (20kg) = 0.01 cubic metre 100 bags (20kg) = 1.0 cubic metre1 x 20kg bag will fill:400mm deep hole for a 100 x 100mm post or a 75 x 75mm post1.5 bags will fill 600mm deep hole for a 100 x 100mm post or a 75 x 75mm post.