Designing a deck has never been easier! Whether you’re planning a new deck or upgrading an existing one, using the right design tool can save you time, money, and effort. In 2025, several free deck design tools offer intuitive interfaces, customization options, and even material estimates to help you bring your vision to life.

We’ve rounded up the 10 best free deck design tools in 2025 to help you plan the perfect outdoor space. Many of these tools also provide step-by-step tutorials and real-time 3D visualization to make designing easy and fun!

1. Decks.com Deck Designer

One of the most popular online tools, Decks.com Deck Designer lets you customize deck size, shape, and materials. You can also download permit-ready plans and a materials list.

• Features: 3D visualization, permits & material estimates.
• Best for: DIY homeowners and beginners.

Watch the tutorial here.

2. Trex Deck Designer

If you’re considering a composite deck, the Trex Deck Designer is an excellent choice. It provides realistic 3D designs and material suggestions.

• Features: Color customization, 3D modeling, material breakdown.
• Best for: Composite decking enthusiasts.

Watch the tutorial here.

3. TimberTech Deck Design Tool

With a drag-and-drop interface, TimberTech’s tool allows users to design custom decks with various deck board layouts, railing choices, and accessories.

• Features: Real-time cost estimation, product integration.
• Best for: Homeowners who want a realistic preview.

4. Fiberon Deck Designer

Fiberon offers a sleek deck design tool with high-resolution 3D rendering and materials visualization. You can customize every detail, including stairs and railings.

• Features: Integrated cost estimator, high-quality visuals.
• Best for: Modern deck designs.

5. MiTek Deck Designer

MiTek’s free deck design tool provides extensive **customization options**, including multi-level decks and integrated lighting.

• Features: Multi-level deck planning, structure visualization.
• Best for: Advanced DIYers and contractors.

Watch the tutorial here.

6. Simpson Strong-Tie Deck Planner

Designed for precision, Simpson Strong-Tie’s software allows you to create code-compliant deck plans with accurate measurements.

• Features: Safety compliance, accurate framing details.
• Best for: Contractors and professionals.

Watch the tutorial here.

7. Planner 5D

Planner 5D isn’t just for decks—it lets you design an entire outdoor space. This is a great tool for those who want to integrate landscaping into their deck project.

• Features: Full outdoor planning, multi-device compatibility.
• Best for: Users who want a comprehensive backyard design.

Try it here.

8. Home Depot Deck Designer

Home Depot’s free online deck designer tool offers a **step-by-step building guide** along with a materials list.

• Features: Pre-set templates, cost estimation.
• Best for: Homeowners looking to source materials directly from Home Depot.

9. SketchUp Free

While not deck-specific, SketchUp Free provides **powerful 3D modeling capabilities**, allowing for precise deck design.

• Features: Professional-grade modeling, extensive customization.
• Best for: Advanced users and contractors.

Watch the tutorial here.

10. Lowe’s Deck Designer

Lowe’s deck design software helps users create custom decks using **pre-loaded deck templates or fully custom dimensions**.

• Features: Free project saving, easy-to-use interface.
• Best for: Homeowners who shop at Lowe’s.

Start Designing Your Deck Today!

With these top 10 free deck design tools in 2025, planning your dream deck has never been easier. Whether you want a **simple backyard retreat or a multi-level masterpiece**, these tools will help bring your vision to life. Once you have a design, contact VS Deck & Rail for professional installation!

Need expert help? Contact us today for a free consultation!