Deck Building in South Beloit, IL
Hard Decks builds custom decks for South Beloit, IL, homeowners. Treated wood, composite, and premium decks across every footprint and budget, backed by NADRA-certified construction standards.

Why South Beloit Homeowners Pick Hard Decks for Custom Builds
A new deck doesn’t show its quality on the day it’s finished. It shows up five and ten years later, when one deck looks the same as it did on day one and another has soft boards, lifted nails, and railings that creak when you lean against them. The difference is in the choices that get made before construction starts: framing material, fastener selection, joist tape, decking grade, and whether the build hits NADRA standards or just minimum code.
We’re Hard Decks, based at 2415 Huntington Drive in Belvidere with regular service across South Beloit, Rockton, Roscoe, Rockford, Machesney Park, Loves Park, and the surrounding Boone and Winnebago County communities. Deck building sits alongside deck repair, replacement, and restoration as our core services.
Our work runs on three commitments. NADRA-certified inspection standards on every build, which means construction quality above minimum code requirements. Fully licensed and insured operation with Trex Pro Gold, TimberTech Silver Pro, and Deckorators Certified Pro credentials, and clear communication throughout the build. So, you know what’s happening, when it’s happening, and who’s on your property doing the work.

- NADRA-Certified Deck Inspector
- Trex Pro Gold Contractor
- TimberTech Silver Pro Installer
- Deckorators Certified Pro
- Licensed and Insured Crew
- Permits and Code Compliance Handled
What South Beloit Homeowners Say
Direct accounts from Boone and Winnebago County homeowners who hired us to build their deck.
P
Peter Gustafson
The team at Hard Decks makes the process of building or replacing your deck painless and worry free.
From the first meeting to review the choices available to scheduling and completion are handled professionally.
The entire team is knowledgeable, friendly, expand professional. I would highly recommend Hard Decks for your project.
k
Kathryn Colwell
Hard Decks did a very professional, beautiful job replacing my deck with a Trex composite deck and helping with related issues.
Jayme, Andy, Shawn, and the rest of the team were very personable, detailed and precise in their work, and showed such a strong work ethic. They’re skilled carpenters who gave daily updates as to their progress.
I’m so pleased with what they’ve done and would highly recommend them.
How Much Does a New Deck in South Beloit Cost?
Deck pricing depends on size, materials, complexity, and upgrades. We offer three base packages to fit different budgets and design ambitions:
| Tier | Scope | Cost |
| Economy | 10×10 treated wood deck, wood railings, small wood stairs | $6,000 – $8,000 |
| Standard | 14×16 composite deck, set of stairs, composite or aluminum railings | $23,000 – $28,000 |
| Premium | 20×20 or larger premium composite, aluminum railings, set of stairs | $50,000+ |
These are starting points. The exact number depends on your specific site conditions, material grade, and added features.
The variables that shape your quote:
Material grade Pressure-treated wood sits at the budget end. Economy composites (Trex Enhance, Deckorators Venture, TimberTech Prime/Premier) move into the standard tier. Premium composites and PVC lines (Trex Transcend, Deckorators Vault and Voyage, TimberTech Legacy and Reserve, AZEK Vintage and Landmark) sit at the top.
Complexity and height Decks under 5 ft with basic rectangular layouts run cheaper than 5-8 ft elevated builds with L-shaped layouts. Decks over 8 ft with multi-level designs or inlay patterns sit at the high end.
Railing system Wood railings are the budget-friendly option. Composite, aluminum, and cable railings carry premium pricing.
Framing material Pressure-treated lumber is standard for framing. Steel framing typically adds 5-10% to the total project cost but comes with a 25-year warranty and significantly better long-term stability against twisting, warping, and bowing.
Site access and elevation Lots with easy build access cost less than properties requiring extensive site preparation or complex elevation work.
Prices vary with size, materials, and details. We’ll provide an exact quote after an on-site visit so you know what fits your budget best.
Steel Framing as a Long-Term Investment
Steel framing is one of the more meaningful upgrade decisions in the build conversation. The trade-off:
- 25-year warranty on the framing structure, compared to no warranty typical for pressure-treated wood
- Stays straight and stable rather than twisting, warping, or bowing over time as wood does in response to moisture and temperature
- Powder-coated sleek finish keeps the underside looking clean and consistent rather than weathered and uneven
- 5-10% cost increase on the total project, delivering decades of stability and reduced long-term maintenance
For homeowners planning to stay in the property long-term, steel framing usually pays back through eliminated repair costs and the cleaner finished look.
Popular Deck Upgrades
The features that turn a standard deck into a custom build:
- Recessed deck lighting, post-cap lighting, and stair-tread lighting
- Under-deck drainage systems that keep the area below dry and usable
- Skirting and lattice to conceal framing and create a finished perimeter
- Built-in benches for integrated seating without separate furniture
- Pergolas, roofs, or covered sections for shade and rain protection
- Joist protection tape applied during construction to prevent moisture damage
- Wrapped posts and beams for a polished, low-maintenance finish
- Sunken hot tub enclosures integrated into the deck framing
- Steel framing systems for long-term stability
- Custom inlay designs in contrasting decking colors
Affordable Decks, Built on Time
We understand budgets and deadlines matter. We plan carefully, order materials early, and keep you updated so there are no surprises.
Budget
When you spread the price of a standard deck over its lifespan, it often works out to less than what you spend on coffee each day. And you get a whole new outdoor space to enjoy for years.
Timeline
We finish on schedule because we respect your home and your routine. When the job’s done, we clean up so the only thing left behind is your new deck.
Our Deck Build Process
We keep the process simple and transparent so you can focus on the fun parts like choosing colors, railing styles, and where the grill will go.

1
Collaborate
We talk through how you want to use the deck and design it around your life.

2
Build
We handle permits, code compliance, and construction.

3
Enjoy
Pour a drink, invite people over, enjoy a deck built to last.

Common Questions About Deck Building in South Beloit
Yes. Most towns and counties in the South Beloit and broader Winnebago County area require permits for new deck construction. We handle the permit process and code compliance as part of the project.
Most decks wrap in one to two weeks once design and permits are finalized, depending on complexity and weather. Larger or more complex builds extend longer.
Composite (Trex, TimberTech, Deckorators) doesn’t rot, splinter, or fade like wood and requires significantly less maintenance. Wood (pressure-treated, cedar) is the budget-friendly option and delivers a more traditional natural look but requires regular staining or sealing to maintain.
For homeowners staying in the property long-term, yes. The 5-10% cost increase delivers a 25-year warranty, much better long-term stability, and a cleaner finished look underneath the deck.
Yes. Every Hard Decks build is custom-designed around your home, yard, and how you actually plan to use the space. Wraparound layouts, sunken hot tubs, built-in lighting, multi-level designs, and custom inlay patterns all sit within our standard scope.
Yes. We’re NADRA-certified deck inspectors, which means we build to a higher standard than minimum code. Every post, beam, board, and railing is installed with long-term safety in mind.
Trex, TimberTech, Deckorators, and AZEK across their full product lines. We hold Trex Pro Gold, TimberTech Silver Pro, and Deckorators Certified Pro credentials.
A Deck Worth Spending Your Weekends On

South Beloit sits in Winnebago County along the Illinois-Wisconsin border, just south of Beloit, WI, with access to the Rock River and the broader network of established residential neighborhoods across the City of South Beloit footprint. The combination of mature properties, Midwest weather cycles, and family-focused residential investment makes deck construction a regular part of how homeowners actually use their backyards from spring through fall. We’re based in nearby Belvidere and serve South Beloit as part of our regular Boone and Winnebago County coverage.