Trex Decking Calculator

Take the Guesswork Out of Deck Planning

Thinking about building a new deck with Trex? One of the first (and most important) steps is knowing what your project will cost. That’s exactly why we created the Trex Decking Calculator - a simple, accurate tool that helps homeowners and contractors get a full breakdown of materials and estimated costs before any boards are ordered or cuts are made.

At Premium Decking Supply, we’ve seen how many customers underestimate or overcomplicate deck planning. Our goal with this calculator is to give you clarity, accuracy, and control. In less than a minute, you’ll know what kind of budget you’re looking at - and exactly what materials you’ll need to bring your outdoor living space to life.

What Is the Trex Decking Calculator?

The Trex Decking Calculator is an easy-to-use online estimator that generates a detailed list of Trex materials and their associated costs based on your input. It goes far beyond basic square footage math - delivering an itemized material list, optional features, and total projected costs tailored to your exact setup.

You can:

• Input custom deck dimensions (length × width)
• Choose from any of the 5 Trex collections (Signature®, Transcend Lineage™, Transcend®, Select®, Enhance®)
• Add extras like railings, stairs, fascia, risers, fasteners, and substructure
• Receive a detailed cost breakdown instantly
• Get a copy of the entire report sent directly to your email

This isn’t just a basic board count - it’s a smart planner that walks you through your build and ensures nothing gets overlooked.

Why Use a Deck Calculator?

Many people make the mistake of assuming a deck estimate just includes the boards. But there’s a lot more that goes into a complete Trex build. This calculator helps you:

• Save Time - No manual math or spreadsheets required
• Avoid Surprises - Plan for all materials, not just decking
• Compare Collections - See pricing differences instantly
• Share Easily - Send your estimate to a contractor or use it as a shopping list

It’s helpful whether you’re DIY-ing your deck or hiring a pro - and it makes budgeting way easier.

What Does the Calculator Include?

Once your deck dimensions and product selections are entered, the calculator returns a full list including:

• Decking boards by length
• Fascia boards and risers
• Hidden fasteners, screws, starter clips
• Stair treads and components
• Substructure materials (joists, beams, posts)
• Hardware, protective tape, and accessories
• Trex railing systems based on your layout

You’ll get the type, quantity, and projected cost for each material. You can then tweak your options to match your budget or layout goals.

How Much Does Trex Decking Cost?

Trex offers a wide range of collections - from budget-friendly to luxury-grade. Here's a general pricing guide per square foot:

• Trex Enhance: $5 - $8
• Trex Select: $8 - $13
• Trex Transcend / Lineage: $12 - $15
• Trex Signature: $15 - $23

These estimates cover materials only. Labor (which varies by location and complexity) typically runs between $10 and $15 per square foot.

The calculator lets you see these differences in real time, helping you make smart decisions that balance style, performance, and cost.

Understanding the Bigger Picture

Deck size isn’t the only thing that affects your estimate. Here are some other key factors the calculator considers:

• Add-ons like railing, fascia, stairs, and fasteners
• Deck shape/design (e.g., square vs. multi-tier)
• Collection selected - higher-end boards cost more
• Board orientation - affects material usage
• Substructure type - determines joist and beam counts
• Site complexity - not factored into the tool, but good to keep in mind for labor costs

That’s why having a detailed breakdown before you begin is so valuable. You can avoid surprises, plan efficiently, and ensure your deck comes together smoothly.

Trex vs. Wood: Why It’s Worth It

While Trex’s upfront price may be higher than pressure-treated wood, the long-term savings are real. Trex decking:

• Never needs staining or sealing
• Won’t rot, warp, or splinter
• Offers 25- to 50-year warranties (depending on collection)
• Is made from 95% recycled materials
• Requires minimal maintenance for decades

You pay a little more now - but avoid years of upkeep and early replacement. The calculator lets you see those tradeoffs clearly before you decide.

Plan With Confidence

Whether you’re just starting your project or finalizing materials with your contractor, the Trex Decking Calculator is the best way to get an accurate picture of your build.

It supports every Trex collection, allows for advanced layout planning, and delivers professional-grade results - all from your desktop or phone.

Try It Today

Use the Trex Decking Calculator Now!