Pipe Box Hollow is a box-shaped pipe made with the use of galvanized iron, iron or steel. Many advantages are obtained by using hollow metal such as fireproof, termite, corrosion resistant, fast installation process, and the price is quite affordable. In addition, in terms of the installation or its application is not too difficult because it is quite easy and fast so it is more cost labor costs can be reduced. Currently most hollow metal box used to frame ceiling and canopy frame. Besides sometimes used also as a fence by selecting a hollow thick.