Go forth and multiply, the Bible says, and when couples do, the little children get big and then we need more room. If families have four or five, they may have to double up, and here's the home craftsman opportunity to go into bunk bed building. Offer a simple, standard setup, or fancier models, with drawer storage beneath and attached computer desk and bookshelf space. Cut prefab parts so you have several sets ready in kit for deliver and assemble at client's home. Wait, there's more. Build an extra large model option for those 6 foot 6 270 lb. boys headed for football at USC and maybe the NFL. American youths are growing bigger in recent generations and bedding mattressess are being manufactured to fit the trend.