This shows a junction module. The junction is based upon a three foot corner with an addition of two feet to one side. Note that a junction module can be either a right hand or left hand junction. A junction based upon a 3 foot corner and a 2 foot extension is known as a 3 x 5 foot junction. The junction could be built as a corner and an extension, but a single 3 x 5 foot shape is better and not that much more difficult to handle. A junction built upon a 4 foot corner could be bulky to handle with an extension attached permanently. Therefore, consideration should be given to two separate pieces for transporting.