Decking & Railings

Champaign, IL | Urbana, IL

Special Ordering Out-of-Stock Items

Free Estimates for All Materials

Same-Day Delivery Available

Hours:

Build Your Dream Outdoor Space With Quality Decking and Railings

Since 1957, Armstrong Lumber has been serving Champaign and Urbana with quality building materials. Our locally and family-owned business brings over 140 years of combined experience to every project. You receive materials and service built to last.

Building a new deck or upgrading your existing outdoor space? Our knowledgeable staff will help you select materials that fit your vision and budget. We offer same-day delivery, free estimates for all materials, and can typically have what you need available within hours. Contact us today to get started on your decking project.

Composite Decking by Trex Transcend®

Low-maintenance and long-lasting, composite decking resists fading, staining, scratching, and mold. Trex Transcend offers high-end color options and performance without the need for regular sealing or staining.


Cedar Decking

Naturally beautiful with rich color and grain, cedar is resistant to rot and insects. It’s a great choice if you want a classic wood look with lighter weight and easier workability.


Pressure-Treated Decking

A cost-effective and durable option, treated lumber is designed to resist moisture, decay, and insect damage. It’s ideal for structural longevity and projects where budget is a key factor.

Text START to to begin receiving offers by text.

Msgs may be autodialed. Consent to texts not required to purchase our svcs. Msg. and data rates may apply.

Text Now!

Why Choose Us

Black circle with a white checkmark icon

Special Ordering Out-of-Stock Items

White checkmark inside a black circle icon

Free Estimates for All Materials

Black circle with a white check mark inside

Same-Day Delivery Available

Black circle with a white checkmark icon

Custom Orders Available

White checkmark in a black circle icon.

Highest Standard of Manufacturer Warranties

Black circle with a white checkmark icon

Materials Available Within Hours

Map with a large red shaded circular area and a red label marker over a town grid -
Back deck with white railing beside a tan two-story house and green lawn under a blue sky

Composite Decking

Composite decking gives you low-maintenance performance that resists fading, staining, and scratching. It maintains its beautiful appearance year after year.
Spacious wooden deck with white railing beside a house, overlooking leafless trees and a yard

Composite Railings

Complement your deck with composite railings that require minimal upkeep. They come with strong manufacturer warranties you can rely on.
Wooden backyard deck with white railing, patio table, grill, umbrella, and potted flowers amid green trees

Cedar Decking

Our cedar decking offers natural beauty and durability that ages gracefully over time. It provides a classic look for any outdoor space.
Wooden backyard deck with white railing, patio table, grill, umbrella, and potted flowers amid green trees

Cedar Decking

Our cedar decking offers natural beauty and durability that ages gracefully over time. It provides a classic look for any outdoor space.
Spacious wooden deck with white railing beside a house, overlooking leafless trees and a yard

Composite Railings

Complement your deck with composite railings that require minimal upkeep. They come with strong manufacturer warranties you can rely on.
Wooden backyard deck with steps, potted plants, and patio furniture beside a house

Pressure-Treated Decking

Get exceptional value with pressure-treated decking that's protected against rot, decay, and insect damage. Enjoy your outdoor space for years to come.
Modern balcony with glass railing beside a wooden wall overlooking a landscaped path and trees

Glass Railings

Add a modern, sophisticated touch with glass railings that maximize your views. They provide safety and contemporary style for your deck.
Ornate black metal staircase railing beside a white concrete stairway with brick building in the background

Metal Railings

Our metal railing options deliver strength and versatility. They're perfect for creating custom designs that match your home's architectural style.
Wooden backyard deck with steps, potted plants, and patio furniture beside a house

Pressure-Treated Decking

Get exceptional value with pressure-treated decking that's protected against rot, decay, and insect damage. Enjoy your outdoor space for years to come.
Modern balcony with glass railing beside a wooden wall overlooking a landscaped path and trees

Glass Railings

Add a modern, sophisticated touch with glass railings that maximize your views. They provide safety and contemporary style for your deck.
Armstrong Lumber

CP #1 Headline

CP #1 Body

CP #1 CTA Lead-in

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Armstrong Lumber

CP #1 Headline

CP #1 Body

CP #1 CTA Lead-in

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Armstrong Lumber

CP #2 Headline

CP #2 Body

CP #2 CTA Lead-in

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Recent Projects

Turquoise ocean waves crashing with white foam and spray
A winding river cutting through dense green forest canopy
Wind-swept sand dunes with long diagonal ripples in warm brown tones
Two overlapping black chat bubbles with three dots, representing messaging or conversation.

Here's what our satisfied customers are saying...

At Armstrong Lumber, we take pride in providing exceptional construction materials to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Armstrong Lumber and let others know what you think.