Tech-Plank siding is twice as strong and noticeably lighter than fiber cement, Tech-Wood claims. Because the pine-and-polypropylene composite is made from long-strand fibers (from logging scrap) instead of fine sawdust, it’s stiffer than other wood-plastic composites, says the company. Sold in four profiles, the siding comes in 78 paint or 24 stain colors and costs $2.50 per square foot of coverage. Tech-Wood, 866/575-6254, techwood.com