Adding a deck to your home is one of the best investment decisions you can make. According to Cost Vs., from the Remodeling Value Report magazine, a homeowner can expect to recover about 65% of the cost of building a new composite deck when it comes time to sell their home. As mentioned above, the material of your cover will have a big impact on the amount you can recover. Quality wood materials have the highest ROI and composites are approximately 15-20% less.