The improved 1/2-inch ToughRock gypsum boards are 25% lighter than the company’s traditional 1/2-inch wall and ceiling drywall products, says the manufacturer. The improved boards have increased impact resistance and flexural strength and are less prone to breakage. Both the new and original ToughRock gypsum boards earned Greenguard certification as low-emitting products. 800.225.6119. www.gpgypsum.com.