Deck Cost Calculator | Composite Deck Cost Estimator | Trex

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Trex Cost Calculator

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Let’s crunch some numbers

Just how much does a composite deck cost? It’s easy to estimate the materials alone.
A few clicks and you have your answer.

Will your deck have railing? How we calculate railing

Yes

No

Do you already have a substructure? What is a substructure?

Yes

No

What type of substructure material will you use? How does Elevations^® compare to wood?

Trex Elevations®

Wood

Calculate My Results

12′ X 12′ Deck design
(144 sq. ft.)

The perfect starter size, with plenty of room for an outdoor furniture set.

Select This Size

12′ X 14′ Deck design
(168 sq. ft.)

A few more feet sets the scene with space for a dining table.

Select This Size

12′ X 16′ Deck design
(192 sq. ft.)

Room enough to break your space into zones.

Select This Size

12′ X 18′ Deck design
(216 sq. ft.)

Boost the ambiance with a grill or umbrella.

Select This Size

12′ X 20′ Deck design
(240 sq. ft.)

Open up the layout, call the neighbors and let the party begin.

Select This Size

Prev Next

3m X 3m Deck design
(9 sq. m.)

The perfect starter size, with plenty of room for an outdoor furniture set.

Select This Size

3m X 4m Deck design
(12 sq. m.)

A few more meters sets the scene with space for a dining table.

Select This Size

3m X 5m Deck design
(15 sq. m.)

Room enough to break your space into zones.

Select This Size

3m X 6m Deck design
(18 sq. m.)

Boost the ambiance with a grill or umbrella.

Select This Size

3m X 7m Deck design
(21 sq. m.)

Open up the layout, call the neighbors and let the party begin.

Select This Size

Prev Next

Calculating Railing

One side of your deck borders your home. To keep things simple, we approximate railing costs for the remaining sides.

A Substructure Is The Foundation Of Any Deck

It’s everything you need below the surface—joists, posts, beams and support. That goes for second story decks, too.

Trex Elevations^® Vs. Wood

Wood substructures split, warp and shift, leading to an uneven surface in the deck boards above. The dimensionally stable steel of Trex Elevations stays in place, giving you consistently stronger, straighter, safer and smarter decking than what wood can offer.

Deck Estimate

Good
($6,968.50 USD)
Better
($8,628.55 USD)
Best
($10,821.30 USD)

Decking Sq. FT.:

770 Sq. FT.

Railing:

79 Ln. FT.

Substructure:

Existing

«Edit

Total estimated materials cost:

$6,968.50 USD

For a full price and materials breakdown, request your results below.

Email My Detailed Results

Estimate Only. Actual costs will vary.
Estimate includes pricing for selected items listed below.

Labor and installation costs are not included.

Actual material costs and install costs can and will vary based on geographic area, site location, seasonality, design complexity, whether the product is stocked locally, and additional features such as stairs, hidden fasteners, fascia, angles, curves, lighting, etc.

Learn More

Trex Select^® Decking
| Trex Select^® Railing
| Trex Elevations^®

Need a Closer Look?

A board sample is as close as it gets. Compare a few different colors to see which works best.

Order a Sample

Products Included

Trex Select^® Decking

Affordability never looked so alluring.

View Product
Trex Select^® Railing

Classic rails, posts and balusters.

View Product
Trex Elevations^®

The only deck frame that can stand up to the elements.

View Product
Wood Substructure

A new substructure built with wood.

View Product

Total estimated materials cost:

$8,628.55 USD

For a full price and materials breakdown, request your results below.

Email My Detailed Results

Estimate Only. Actual costs will vary.
Estimate includes pricing for selected items listed below.

Labor and installation costs are not included.

Learn More

Trex Enhance^® Decking
| Trex Transcend^® Railing
| Trex Elevations^®

Need a Closer Look?

A board sample is as close as it gets. Compare a few different colors to see which works best.

Order a Sample

Products Included

Trex Enhance^® Decking

The DIY-er’s preferred decking: easy to build and easy on the eyes.

View Product
Trex Transcend^® Railing

Design freedom, courtesy of myriad colors and modular componentry.

View Product
Trex Elevations^®

The only deck frame that can stand up to the elements.

View Product
Wood Substructure

A new substructure built with wood.

View Product

Total estimated materials cost:

$10,821.30 USD

For a full price and materials breakdown, request your results below.

Email My Detailed Results

Estimate Only. Actual costs will vary.
Estimate includes pricing for selected items listed below.

Labor and installation costs are not included.

Learn More

Trex Transcend^® Decking
| Trex^® Signature^™ Railing
| Trex Elevations^®

Need a Closer Look?

A board sample is as close as it gets. Compare a few different colors to see which works best.

Order a Sample

Products Included

Trex Transcend^® Decking

Unparalleled, true-to-nature vibrancy, paired with an unmistakable grain.

View Product
Trex^® Signature^™ Railing

Made of aluminum, for effortless style and exceptional strength.

View Product
Trex Elevations^®

The only deck frame that can stand up to the elements.

View Product
Wood Substructure

A new substructure built with wood.

View Product

Why does Trex cost more than wood?

See the Difference

Almost There.

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Trex Cost Calculator

Let’s crunch some numbers

Enter your deck dimensions: Show me some standard sizes

Will your deck have railing? How we calculate railing

Do you already have a substructure? What is a substructure?

What type of substructure material will you use? How does Elevations® compare to wood?

12′ X 12′ Deck design(144 sq. ft.)

12′ X 14′ Deck design(168 sq. ft.)

12′ X 16′ Deck design(192 sq. ft.)

12′ X 18′ Deck design(216 sq. ft.)

12′ X 20′ Deck design(240 sq. ft.)

3m X 3m Deck design(9 sq. m.)

3m X 4m Deck design(12 sq. m.)

3m X 5m Deck design(15 sq. m.)

3m X 6m Deck design(18 sq. m.)

3m X 7m Deck design(21 sq. m.)

Calculating Railing

A Substructure Is The Foundation Of Any Deck

Trex Elevations® Vs. Wood

Deck Estimate

Decking Sq. FT.:

Railing:

Substructure:

Total estimated materials cost:

$6,968.50 USD

Need a Closer Look?

Products Included

Trex Select® Decking

Trex Select® Railing

Trex Elevations®

Wood Substructure

Total estimated materials cost:

$8,628.55 USD

Need a Closer Look?

Products Included

Trex Enhance® Decking

Trex Transcend® Railing

Trex Elevations®

Wood Substructure

Total estimated materials cost:

$10,821.30 USD

Need a Closer Look?

Products Included

Trex Transcend® Decking

Trex® Signature™ Railing

Trex Elevations®

Wood Substructure

Why does Trex cost more than wood?

Almost There.

Call Us Toll Free

What type of substructure material will you use? How does Elevations^® compare to wood?

12′ X 12′ Deck design
(144 sq. ft.)

12′ X 14′ Deck design
(168 sq. ft.)

12′ X 16′ Deck design
(192 sq. ft.)

12′ X 18′ Deck design
(216 sq. ft.)

12′ X 20′ Deck design
(240 sq. ft.)

3m X 3m Deck design
(9 sq. m.)

3m X 4m Deck design
(12 sq. m.)

3m X 5m Deck design
(15 sq. m.)

3m X 6m Deck design
(18 sq. m.)

3m X 7m Deck design
(21 sq. m.)

Trex Elevations^® Vs. Wood

Trex Select^® Decking

Trex Select^® Railing

Trex Elevations^®

Trex Enhance^® Decking

Trex Transcend^® Railing

Trex Elevations^®

Trex Transcend^® Decking

Trex^® Signature^™ Railing

Trex Elevations^®