A kit for forming and installing an electrical box for housing at least one electrical device. The kit comprises a front segment having a rear and a rear segment having a front. The kit may also comprise at least one cover that is capable of being attached to the front segment. The cover has at least one opening through which an electrical device is accessible. The kit may further comprise a plurality of intermediate segments each having a front and a rear having attachment means that allow the segments to be securely attached in series.