Ultra Grade Structural Recycled Plastic Lumber (fiberglass Reinforced) common uses:

Structural grade plastic lumber is recommended when durability and enhanced strength are required for most construction projects. Plastic structural lumber planks considered structural are wider or much greater in width. Structural plastic lumber is typically used for floor joists, rafters, framing, beams, and trusses. Markstaar's structural plastic lumber is commonly used to build docks, decks, boardwalks, retaining walls, gazebos and hundreds of other structural build applications.

Is Structural Plastic Lumber As Strong As Common Wood Lumber ?

Absolutely Yes! 

Ultra Grade Structural Plastic Lumber is your structural solution for structural construction, deck and dock substructures, posts and beams, architectural construction.