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4.8 / 5 stars 1746 reviews

Composite Deck

$5,300.00 $6,100.00
Sold out
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July 4th Sale

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Step 1: Choose Material • Composite
Step 2: Size • 12 x 16
Standard Series
Step 3: Color • Forest Wood

Get it delivered by July 31-02

In stock, get it delivered in 20-22 business days.

Need Assistance?
Get expert help choosing the right deck for your space.

Product Details

Premium, Low-Maintenance Decking

A High-End Composite Deck, Without the High Cost or Hassle

Skip the complexity of traditional deck building with A-DIY’s patent-pending, engineer-designed Composite Deck Kit. No cutting, measuring, or specialty tools required—just a power drill and a few hours.

Built to Last

  • Premium Composite Deck Boards – Fade, stain, and moisture-resistant with a 25-year warranty.

  • Heavy-Duty 6 x 6 Beams – Engineered for superior strength.

  • Kiln-Dried Pressure-Treated Substructure – 2 x 8 joists spaced 13 to 14 inches on center, meeting standard deck codes.

  • Galvanized Hardware – Corrosion-resistant screws for long-term durability.

  • Modern Picture Frame Border – A sleek, professional finish with no exposed cut edges.

Effortless DIY Assembly

  • No cutting or measuring required.

  • Only a power drill needed (drill bit included).

  • Pre-cut, precision-engineered components for a perfect fit.

What’s Included

  • Pre-cut composite deck boards

  • Pre-cut kiln-dried substructure (joists, beams, framing)

  • Deck blocks for secure foundation

  • Galvanized screws & hardware

  • Custom drill bit & step-by-step guide

Shipping & Returns

All shipping is done using ground transportation, with an estimated delivery time of 7 to 14 days. Please note that delivery times may vary depending on your location and any unforeseen circumstances. 

*Shipping times may vary for any deliveries made outside the highlighted area in the map above. Our support team will be able to share the approximated shipping duration

Warranty

We stand by the quality of our product and offer a generous 5-year warranty on all our decks.

Watch In Action

Need Assistance? We’re here to help!

Send us an email at support@a-diy.com, give us a call 1 (786) 358-2872 . We generally respond to all inquiries within one business day.

Assemble within a few hours

Engineered for 15,000+ lbs

Grade 1 Treated & Kilin Dried Lumber

5-Year Structural Warranty

Built to Last. Engineered for Strength.
  • Supports 15,000+ pounds
  • Constructed with Grade 1, kiln-dried, pressure-treated lumber
  • Reinforced with 2x8 joists and 6x6 support beams
We Don’t Just Deliver a Deck. We Stand Behind It.
Most contractors finish the job and disappear. If something goes wrong weeks—or even days—later, you're often left chasing them down, or worse, paying out of pocket.
Built to Last. Engineered for Strength.
  • 5-Year Structural Warranty
  • 25-Year Warranty on composite deck boards
  • Dedicated support team—just a call, text, or email away
  • Replacement parts shipped fast if anything’s missing or damaged

Size Guide

As seen On

A-DIY Composite Deck Kit

12 x 16 / Forest Wood

Outside feels different now.

Your backyard was always part of your home. Now it finally feels like it.

Your Backyard Retreat

A calm, beautiful space for sauna nights, cold rinses, deep breaths, and doing absolutely nothing.

Made for Gathering

The kind of space where the fire stays on, the chairs fill up, and the night lasts a little longer.

Room to Reset

A simple outdoor space for stretching, breathing, moving, and beginning the day outside.

A Real Deck. Made Simple.

Every part is engineered to fit before it reaches your door. All that’s left is to unpack, assemble, and enjoy.

BUILD NOW, PAY LATER

Flexible Payment Plans

Get your deck now with $0 down and 0% interest. Enjoy flexible and transparent payments up to 24 months.

Financing is subject to credit approval. Terms and conditions apply.

Trustpilot rating

Real People. Real Decks. Real Memories.

Andre Huggins

Great service all around! From start to finish the service was great. I was constantly updated on the status of my order and it was delivered on time. All parts were these and no damage.

Andre Huggins Austin, TX
Alexa Luria

10/10 recommend It’s amazing. So easy and quick to put together, super efficient, amazing quality. 10/10

Alexa Luria Houston, TX
Chad

Easy peasy Easy to follow the steps to install. Customer service team was great as well.

Chad California, LA
Eric chambers

Was a fun project! I'm no carpenter by any means! I've always wanted a deck for my small backyard but 10s of thousands of dollars will never be in my budget.

Eric chambers Chicago, IL
2,500+
Decks Built
4.8/5
Avg Rating
1-2 Days
Avg Build Time
$8,000+
Avg Savings

Product Details

Product Specs

Kiln Dried Pressure Treated Wood

Resistant to warping, cracking, and moisture damage for a long-lasting, sturdy deck.

Pre-Sealed Deck Boards

5.5-inch wide boards ensure a polished, high-end finish while offering long-term protection from the elements.

6 x 6 Beams

Heavy-duty beams provide superior strength and stability.

2 x 8 Joists

Strategically spaced 13 to 14 inches on center, meeting standard deck codes for maximum support.

Modern Picture Frame Border

A sleek, professionally designed edge gives the deck a clean, finished appearance.

Galvanized Hardware

Corrosion-resistant screws and hardware prevent rust and ensure a secure build.

What's Included

Engineered Lumber Parts

Premium Grade 1, kiln-dried and pressure-treated for maximum strength and longevity.

Screws & Metal Brackets

Galvanized parts for superior durability and long-lasting performance.

Tuff Blocks

TuffBlocks deliver a lightweight, durable, and easy-to-install deck foundation built to last.

3D Instructional App

Assemble with confidence using our 3D instructional app, guiding you step by step for a seamless build.

CUSTOMIZATION OPTIONS

Tailored to Your Space

ADJUSTABLE FOR ANY TERRAIN

Uneven Ground

Even if your yard isn’t perfectly flat, your deck can be. Just cut the posts to level things out, or use our longer post with when you need more height.

Pro Tip: On slightly uneven ground, use gravel or cement tiles under the posts to even out the height.

We offer different height post kits. Each kit includes the posts and bracing. Contact our design team for more details.

Learn More

ADJUSTABLE FOR ANY TERRAIN

Deck Height

Standard Height

Each kit comes ready to assemble at 15–17 inches off the ground.

Increase Height

Use longer posts to raise the deck. We also offer longer post kits with bracing. Chat with our design specialists for details.

Decrease Height

Dig a few inches where the footings sit to lower the deck.

We offer different height post kits

Each kit includes the posts and bracing. Contact our design team for more details.

Learn More

EASIER THAN TRADITIONAL DIY

It's Not Just Lumber. It's a Professionally Engineered System.

It's built for strength, speed, and peace of mind and still costs 30–50% less than hiring a contractor. You're getting:

  • Grade 1 kiln-dried & pressure treated wood, not store-grade lumber
  • A precision cut kit that fits together perfectly
  • No cutting, measuring, or waste
  • No tools needed except a drill
  • Designed to hold hot tubs, pergolas, and up to 15,000 lbs
  • Assembles in just a few hours
  • Includes a 5-year structural warranty and 25-year warranty on composite boards

Proudly Built With A-DIY

Real people. Real decks. Real memories.

WHY CHOOSE A-DIY?

See How A-DIY Stacks Up

Compare the real cost, time, and experience of building your deck.

Contractor
DIYer
Cost
One Simple Price
High + unpredictable
Hard to predict
Time Required
Hours
Weeks
Weekends or more
Who builds it?
You, with zero experience
Who knows
You (must have skills)
How it's built?
Pieces snap together
Built on site using tools + labor
You cut, measure and build everything
Quality guarantee
Consistent, Engineered
Builder dependent
Still dependent
Overall Experience
Empowering
Stressful
Overwhelming

FREQUENTLY ASKED QUESTIONS

Have Questions? We Have Answers.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

You save 40–60% on labour costs and retain full creative control.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

You save 40–60% on labour costs and retain full creative control.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

You save 40–60% on labour costs and retain full creative control.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

You save 40–60% on labour costs and retain full creative control.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

You save 40–60% on labour costs and retain full creative control.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

You save 40–60% on labour costs and retain full creative control.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

A-DIY systems are engineered for fast, tool-free assembly without compromising structural integrity.

Most standard deck kits can be assembled in a single weekend — typically 8–16 hours.

No special tools or prior experience is required. Every kit includes step-by-step instructions.

You save 40–60% on labour costs and retain full creative control.

Our adjustable pedestal feet accommodate slopes up to 15°. For steeper grades, contact our support team.