How to Build a Multi-Level Deck: Step-by-Step Guide

Shane Chapman / Backyard Building Expert

Shane Chapman

Backyard Building Expert
See Short Bio

Building a multi-level deck is a fantastic way to maximize your outdoor living space and create distinct areas for different activities. Whether you're looking to entertain guests, create a quiet reading nook, or have a dedicated space for outdoor dining, a multi-level deck can meet all these needs. At The Ultimate Deck Shop, we believe that anyone can take on this project with the right guidance and tools.

One of the major advantages of a multi-level deck is its versatility. By incorporating various levels, you can accommodate the natural landscape of your yard, dealing with slopes and uneven ground effectively. This type of deck also provides unique design opportunities, allowing you to create a visually interesting structure that enhances the beauty of your home.

Before you start building, it's crucial to plan meticulously to ensure that the final product is not only aesthetically pleasing but also safe and durable. By carefully considering the design, gathering the right materials, and following a detailed construction process, you'll be well on your way to creating a multi-level deck that you and your family can enjoy for years to come.

Planning Your Multi-Level Deck Design

When planning a multi-level deck, the design is crucial. We need to consider the purpose of each level, how they connect, and the overall flow of the space. Multi-level decks can be ideal for creating separate areas for dining, lounging, and play. First, determine the primary use of each section. One level might be for barbecuing, another for a hot tub, and another for a sitting area.

Think about the layout and how people will move between levels. Stairs, ramps, or integrated seating are options to connect various levels. It’s also essential to consider safety and stability, ensuring proper railing and support structures. We can incorporate features like built-in benches, planters, or storage to make the space more functional and aesthetically pleasing. Sketching a detailed plan will help visualize the outcome and ensure all elements fit together harmoniously.

Gathering the Necessary Materials and Tools

Before beginning construction, gathering all the necessary materials and tools is essential. We will need wood, fasteners, concrete, and decking boards. For multi-level decks, it’s crucial to have enough support posts, beams, and joists to handle the additional weight and ensure stability. Pressure-treated lumber or composite materials are good choices for longevity and resistance to the elements.

Make sure to have the right tools for the job, such as a hammer, saw, drill, level, and measuring tape. Safety gear like gloves, safety glasses, and ear protection is important to keep yourself safe during construction. Planning ahead and purchasing all the materials in one trip can save time and ensure you have everything needed to complete the project. By being prepared, we can avoid delays and keep the building process smooth and efficient.

Step-by-Step Construction Process

Building a multi-level deck involves several key steps to ensure it is sturdy and functional. Start by marking the deck’s perimeter and laying the foundation. Dig holes for the support posts and fill them with concrete to set the posts firmly in place. Once the concrete cures, attach the beams and joists to create the frame. Each level of the deck will need its support framework, so make sure to follow the design plan closely.

Next, install the decking boards. Begin at one edge and work your way across, securing each board to the joists with screws or nails. When building the different levels, make sure the transitions between them are smooth. Installing the stairs comes next, connecting the levels safely. Attach the railing using proper brackets and screws, ensuring all sections are secure and aligned. Check all connections and support points to make sure everything is firm and stable before moving on to the final touches.

Final Touches and Maintenance Tips

Once the construction is done, the final touches will make your deck look polished and inviting. Sand any rough edges or surfaces to prevent splinters and ensure a smooth finish. If using wood, apply a stain or sealant to protect it from the weather. Composite materials may not need staining, but a protective sealant can add to their longevity. Add decorative elements like built-in seating, planters, and lighting to enhance functionality and beauty.

Regular maintenance is key to keeping your deck in top shape. Clean the deck annually to remove dirt, debris, and mildew. Inspect it regularly for signs of wear or damage, especially after harsh weather. Tighten any loose screws and replace damaged boards as needed. By investing time in regular upkeep, you can extend the life and beauty of your deck, ensuring it remains a safe and enjoyable space for years to come.


Building a multi-level deck can transform your outdoor space, providing different areas for various activities and making your backyard more functional and attractive. Choosing the right design, gathering the necessary materials, following a step-by-step construction process, and finishing with appropriate maintenance ensures a successful project. We hope this guide has provided you with the knowledge and confidence to undertake your deck-building project.

For those ready to take the next step, The Ultimate Deck Shop offers a wide range of supplies and expert advice to help you build the perfect multi-level deck. Visit us in Saskatoon or Regina, and let us help you bring your backyard vision to life.

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About the Editor...

Shane Chapman // Backyard Building Expert

Shane Chapman, President and Co-Founder of The Ultimate Deck Shop, is a seasoned expert in the deck building industry. A former award winning deck builder (Fresh Decks), he now leads Canada’s top destination for backyard building materials.

Shane is committed to simplifying the shopping experience, providing exceptional customer service, and empowering both DIYers and professionals with his expert advice.

Get in touch with Shane to connect, collaborate or ask questions at LinkedIn.