17 Deck Steps Ideas
Discover how the perfect set of deck steps can transform your outdoor area into a stylish and functional haven.
Read Article
Price Range
$$$
Limited Residential Warranty
Transcend® Composite Railing
A timeless look that you can tailor to your needs, made from high-quality composite.
Color:
Charcoal Black
Discover Why Trex Railing is the Best Choice for Deck Railing
Designs for Every Style
From sleek modern to timeless classic, we're here to make your outdoor space uniquely yours.
Easy-to-Use Tools
Trex’s design tools let you plan, price, and explore railing styles from home—quick and easy.
Installation Made Simple
With step-by-step guides and Trex Academy resources, we’ve got everything you need to DIY.
Peace of Mind
With Trex railings, skip the painting and staining—just enjoy lasting beauty with 15–50 year warranties.
Personalize Your Look
Choose from curved railings, cocktail rails, lighting, or ADA options to make your space just right for you.
Your Project, Our Priority
Our Customer Care Team is here to support you every step of the way throughout your deck project.
Railing Anatomy
Click on the hot spots below to explore the core components of a railing system.
Post Sleeve
A post sleeve is a durable covering designed to protect your railing posts and enhance your deck's style. Available in composite 4x4 or 6x6 sizes and a variety of colors, it pairs perfectly for a low-maintenance, long-lasting finish. Alternatively, you can use an aluminum 4x4 post sleeve an aluminum post for a sleek and sturdy design.
Post Cap
A post cap adds the finishing touch to your deck posts, offering both protection and style. Choose our traditional post cap or upgrade to a lighted post cap for added ambiance and visibility—perfect for elevating your railing with elegance and functionality.
Post Skirt
A post skirt conceals gaps around the base of deck posts, providing a more finished look. Select our durable, easy-to-install post skirts to eliminate unsightly gaps, enhance the look of your railing, and protect against moisture.
Balusters
Balusters provide support and style to your railing. Choose square composite for a classic look or round aluminum for modern flair. Both options offer strength and low maintenance, ensuring your railing is both beautiful and durable.
Top Rail
The top rail is the uppermost piece of the railing, offering grip and stability. Opt for our smooth, durable crown top rail for a comfortable handhold or upgrade to a cocktail rail for a stylish and convenient ledge for drinks.
Bottom Rail
A bottom rail provides foundational support to your railing structure. Engineered for durability, it complements your top rail, ensuring your composite railing system is robust and secure.
-
Posts & Post Components
-
Rails, Balusters & Infills
-
Accessory Kits
1. 4” Post Sleeve
Hollow sleeve that fits over a solid, pressure-treated post or post mount.
Fits over 4”x4” Pressure-Treated Post.
4” X 4” X 39”/108” Actual External Dimension:
4.45” x 4.45” x 40” (113mm x 113mm x 101 cm)
4.45” x 4.45” x 108” (113mm x 113mm x 274 cm)
1. 6" Post Sleeve
Hollow sleeve that fits over a solid, pressure-treated post or post mount.
Fits over 4”x4” Pressure-Treated Post.
6"x6" width only available in Classic White.
6” X 6” X 39”/108” Actual External Dimensions:
5.5” x 5.5” x 39” (139 mm x 139 mm x 990 mm)
5.5” x 5.5” x 108” (139 mm x 139 mm x 274 cm)
2A. Flat Post Sleeve Cap
12 per box. Cap topping each post is the decorative finish that also withstands the weather.
6” Available in Classic White only.
Actual External Dimensions:
4” x 4”: 4.55” x 4.55” (115 mm x 115 mm)
6” x 6”: 5.55” x 5.55” (140mm x 140mm)
2B. Post Sleeve Skirt
12 per box. Finishing piece at the base of the post that covers any cuts where the decking and railing meet. Usually coordinates with the cap.
Actual External Dimensions:
4” x 4”: 4.55” x 4.55” (115 mm x 115 mm)
6” x 6”: 5.55” x 5.55” (140mm x 140mm)*
*6" post sleeve skirts exclusively available in Classic White and are offered as a single piece (not pictured).
3. Rail & Baluster Kit - Composite
Includes: Crown Top Rail, Universal Bottom Rail, Square Balusters, Baluster Spacers, Adjustable Foot Block and Mounting Hardware
6’ x 36” Rail & Baluster Kit - Composite:
Horizontal – available in Classic White, Charcoal Black and Vintage Lantern
Stair – available in Classic White
8’ x 36” Rail & Baluster Kit - Composite:
Horizontal and Stair – available in Classic White, Charcoal Black and Vintage Lantern
Actual dimensions: 6’ Rail: 67.5 in x 36 in (171 cm x 914 mm); 8’ Rail: 91.5 in x 36 in (232 cm x 914 mm)
3. Rail & Baluster Kit - Aluminum
Includes: Crown Top Rail, Universal Bottom Rail, Round Aluminum Balusters, Baluster Spacers, Adjustable Foot Block and Mounting Hardware
6’ x 36” Rail & Baluster Kit - Aluminum:
Horizontal and Stair – available in Classic White, Charcoal Black and Vintage Lantern
8’ x 36” Rail & Baluster Kit - Aluminum:
Horizontal and Stair – available in Classic White, Charcoal Black and Vintage Lantern
Actual dimensions: 6’ Rail: 67.5 in x 36 in (171 cm x 914 mm); 8’ Rail: 91.5 in x 36 in (232 cm x 914 mm)
3A. Crown Top Rail
Horizontal rail attached to the top of the balusters and the posts.
Actual Length
Horizontal and Stair – available in Classic White, Charcoal Black and Vintage Lantern
6’ Rail: 67.5” (171 cm)
8’ Rail: 91.5” (232 cm)
3A/3B. Transcend Universal Top/Bottom Rail
Horizontal rail attached to both the top and bottom of the balusters and the posts; the top rail portion serves as base for the installation of a deck board that acts as a cocktail rail.
Actual Length
6’ Rail:67.5” (171 cm)
8’ Rail:91.5” (232 cm)
4. Round Aluminum Baluster
20 per pack
Vertical rungs–sometimes called spindles–that fill the space between posts.
Actual Dimensions
36” Rail Height: .75” x 30.25” (19 mm x 768 mm)
42” Rail Height: .75” x 36.25” (19 mm x 920 mm)
4. Square Baluster
16 per pack
Vertical rungs–sometimes called spindles–that fill the space between posts.
Actual Dimensions
36” Rail Height: 1.418” x 1.418” x 30.375” (36 mm x 36 mm x 771 mm)
42” Rail Height: 1.418” x 1.418” x 36.375” (36 mm x 36 mm x 923 mm)
6. Glass Panel Accessory Kit
Glass panel mounting hardware; glass panel not included.
6’ Rail: 67.5” (171 cm)
5. Accessory Infill Kit
Available in 6’ and 8’ lengths for square, colonial and round balusters; horizontal and stair applications.
Includes: 2 Baluster Spacers, Adjustable Foot Block, Mounting Hardware
Actual Lengths
6’ Rail: 67.5” (171 cm); 8’ Rail: 91.5” (232 cm)
Mounting Hardware for Cut Rails—Horizontal
Contains:
Qty (2) Crown Top Rail Gaskets—Horizontal
Qty (4) Universal Top/Bottom Rail Gaskets—Horizontal
Qty (4) RSB Rail Brackets
Qty (8) Rail to Bracket Fasteners—Horizontal
Qty (8) Rail to Post Fasteners
Qty (4) Screw Tip Covers
Mounting Hardware for Cut Rails—Stair
Contains:
Qty (1) Crown Top 1 Rail Gaskets—Stair
Qty (1) Crown Top 2 Rail Gaskets—Stair
Qty (2) Universal Top/Bottom 1 Rail Gaskets—Stair
Qty (2) Universal Top/Bottom 2 Rail Gaskets—Stair
Qty (8) RSB Rail Brackets
Qty (8) Rail to Bracket Fasteners— Stair
Qty (8) Rail to Post Fasteners
Qty (4) Screw Tip Covers
RSB Bracket Pack—Horizontal
Qty (4) RSB Rail Brackets
Qty (8) Rail to Bracket Fasteners—Horizontal
Qty (8) Rail to Post Fasteners
RSB Bracket Pack—Stair
Qty (8) RSB Rail Brackets
Qty (8) Rail to Bracket Fasteners—Stair
Qty (8) Rail to Post Fasteners
0 Degree Rail Gasket Pack—Horizontal
Qty (2) Crown Top Rail Gaskets—Horizontal
Qty (4) Universal Top/Bottom Rail Gaskets—Horizontal
Not sure where to start?
Check out our planning tools and resources
Get Inspired
|
-
-
15 Modern Deck Railing Ideas and Designs
Get inspired with 15 of our favorite deck railing ideas to complete your dream deck.
Read Article -
Benefits of Composite Deck Railing
Explore the advantages of composite deck railings in our in-depth railing guide. You'll discover how composite railing designs offer superior safety, upkeep, curb appeal, and functionality compared to wood railing systems.
Read Article
See Similar Looks
Check out these additional railing options from Trex to help you find the best fit for your space
Trex Transcend® Lineage® Decking
Reflects the sun and your sense of style. Transcend Lineage® is engineered to keep your deck cooler, even on the hottest days.*
@TREXCOMPANY
Seen on Social
See what homeowners are saying about Trex on social
*Trex decking with heat mitigating technology can still get hot to the touch when direct sunlight and high temperatures converge for extended periods of time. We therefore recommend shoes, socks, and pet booties, so that you and yours can enjoy living on your deck as much as we’ve enjoyed innovating it.
Copyright © 2025 Trex Company, Inc. All rights reserved.
Photos and videos © 2025 Warner Bros. Discovery, Inc. or its subsidiaries and affiliates. All trademarks are the property of their respective owners. All rights reserved.
- Country
-
Australia
-
Austria
-
Bahrain
-
Brazil
-
Canada
-
Chile
-
Colombia
-
Costa Rica
-
Cyprus
-
Czech Republic
-
Fiji
-
France
-
Germany
-
India
-
Ireland
-
Israel
-
Kuwait
-
Mexico
-
Netherlands
-
New Zealand
-
Norway
-
Oman
-
Qatar
-
Saudi Arabia
-
South Africa
-
Spain
-
Sweden
-
Switzerland
-
Turkey
-
United Arab Emirates
-
United Kingdom
-
United States
-
Venezuela
By choosing your country, you acknowledge that you have read Trex's Privacy's Policy
