FEDERAL WAY, Wash., Aug. 28, 2012 (GLOBE NEWSWIRE) -- To help deck builders, advanced do-it-yourselfers and building material dealers design strong, stable and safe decks, Weyerhaeuser introduces the free "Parallam+ Deck Beam Sizer" app for iPhones® and iPads®. In the field or in the office, the app provides an easy way to figure out the correct size required for Trus Joist® Parallam® Plus PSL beams. www.woodbywy.com The new app enables users to specify the size and loading of decks with only three simple inputs to find the correct beam size. It also provides users a fast and simple way to send supporting documentation to the local building department, which can help facilitate approvals. For complex decks that require additional design assistance, the app connects users with Weyerhaeuser technical support with just a few clicks. The "Parallam+ Deck Beam Sizer" is available on the App StoreSM. "When you're outside getting ready to work on your deck, you don't want to have to run inside to figure out the project details," said Ross Theilen, Director of Customer Software & Technology for Weyerhaeuser. "We've developed many software tools to help specify structural framing, and are working to bring those to the field. The new mobile app takes the guesswork out of beam sizing, and helps save time so projects can stay on schedule." Parallam Plus parallel strand lumber (PSL) with Wolmanized® preservative protection is an ideal structural member for decks and other unprotected exterior applications, including those with high moisture conditions or exposure to saltwater splash. The product offers long-term strength and durability, providing homeowners with peace of mind for solid and safe structural members for their decks. Parallam PSL's unique composition allows the preservative treatment to penetrate to the product's core to help protect against termites, fungal decay and moisture. Parallam Plus PSL can be painted or stained with an oil-based finish to match other deck components.