Abstract: An adjustable tarpaulin (11) that can be adjusted to various predetermined lengths, and more securely fastened. The adjustability of the adjustable tarpaulin (11) is provided by having one or more sets of valances of the top layer (23, 41) and the valances of the bottom layer (27, 43). Because the valances are free on one end, the length of each of the valance side edges may be adjusted as desired and the valances provide two different pull angles to share the load of the tarpaulin. By doing so, the adjustable tarpaulin (11) enables the tarpaulin to be adjusted between two or more prefixed sizes. Moreover the adjustable tarpaulin (11) can provide the distribution of the load from more than one angle so stress and the load will be distributed over two different sets of tie points (33).