Yes, adding a composite deck, such as one made from Trex, can significantly increase your home's value. It is a valuable home renovation for recouping costs, with some estimates for return on investment (ROI) ranging between 60% and 70%. More recently, Remodeling's 2024 Cost vs. Value Report suggests a deck addition has an ROI of 82.9%, with an average resale value of nearly $14,600. A new deck makes your yard more functional, enhances the landscape's aesthetic, and can entice prospective buyers. The investment may have a higher return if the deck adds usable square footage to the property.

Whether to paint or stain a deck depends on your personal preference for appearance and budget. Stain provides a natural look with a range of undertones, is typically less expensive, and may only require one coat, but it does not last as long as paint. Paint offers a sleeker finish with a virtually unlimited color palette. Both options will protect your deck from outdoor elements like rain, snow, and general wear and tear.

For a 12x20-foot (240-square-foot) deck, you can expect to pay between $7,200 and $14,400. This cost is based on a general price of $30 to $60 per square foot. The final price will depend on factors such as the decking material, design complexity, deck type, location, and local labor costs. Keep in mind that add-ons will increase the total; for example, adding an under-deck drainage system to a deck of this size could cost an additional $7,700.

Whether you need a permit depends on the deck design and local regulations. Most areas mandate a building permit if the deck is over a specific height or if it's attached to a pre-existing structure. Shorter, freestanding decks may not require a permit, but you should check with local zoning ordinances and your homeowners association for specifics.