Plastics from consumer electronic appliances (CEA plastics) are engineering-grade plastics, including acrylonitrile butadiene styrene (ABS), polystyrene (PS), polycarbonate (PC), and PC/ABS blends. These common CEA plastics have excellent mechanical properties and could offer a valuable, recycled feedstock. In 2005, 2.8 billions pounds of CEA plastics were collected, but only 245 million pounds were recycled . In the commercial sector, it is currently difficult for de-manufacturers to identify and sort CEA plastics. In a laboratory setting, Fourier transform infrared (FTIR) spectroscopy is a major technique used to identify unknown plastics when compared against a library of know plastics. The handheld FTIR spectrophotometer is a recent technology development that can be used in the de-manufacturing plant to quickly and efficiently identify CEA plastics. After creating a library of common CEA plastics, the handheld FTIR spectrophotometer was used in a de-manufacturing plant to identify and sort CEA plastics found in the collected waste stream. ABS was the most abundant CEA plastic collected. Thus, ABS was melt-blended with different concentrations of high-density polyethylene (HDPE) using a high compounding injection molding machine, and the mechanical properties and morphology characterized. Mechanical property results indicate that ABS/HDPE blends are sufficient for structural recycled plastic lumber applications, such as railroad ties, I-beams, and bridges. Structural recycled plastic lumber is an alternative for traditional chemically-treated wood lumber and requires less maintenance, is not subject to corrosion, has a longer lifespan, and is environmentally.