A deck can be a valuable extension of your living space, especially in New Zealand where outdoor living is a big part of home life. But poor planning, unsuitable materials, or rushed construction can lead to premature wear, safety issues, and expensive repairs. Knowing what to look out for before you build can save time and money.

Handyman Shane Waaka has seen firsthand how decking fails when the wrong materials or construction methods are used. One of the most common issues is poor substructure. Joists that are spaced too far apart or untreated timber can cause sagging and water damage. These problems often show up within a couple of seasons and can mean rebuilding large sections of the deck.

Choosing the right timber matters too. While softwoods are often used to reduce cost, they must be treated and maintained properly. Harsh sun and damp winters both take their toll. Shane advises that if you’re working to a tight budget, it’s better to keep the design simple but invest in quality fixings and framing to ensure structural integrity.

Another useful tip is to pay attention to drainage and ventilation. Water pooling under the deck or insufficient airflow can speed up timber decay. Slight elevation and spacing between boards helps promote drying and adds to the life span of your deck. These elements might be invisible once the deck is complete, but they play a critical role.

Decks don’t need to be elaborate to add value. Start with solid construction and practical design suited to your climate and site. A well-built deck with basic materials, installed with care, will serve its purpose for years and enhance how you use your outdoor space.