When comparing composite and wood for your deck, permit requirements can vary. Material choice affects structural design, which in turn impacts what you submit. Knowing the differences early can help streamline approval.
Material and Structural Support
Composite decking often requires closer joist spacing than wood. Composite boards may need joist spacing of 12″ to 16″ on center, while common wood decks use 16″ on center or more. This means drawings must show more framing detail for composite boards to pass inspection.
Because of this, your permit application must include accurate structural plans. The city reviews joist spans, support posts, beams, and ledger details. Plans must match chosen material specs.
Joist Spacing and Load Calculations
Composite deck boards typically require more joists due to lower deflection tolerance. This increases deck weight and load on ledger and beams. So permit drawings should include load tables and spacing charts from manufacturers.
Wood decks have standard charts built into code. But when you use composite, the city may ask for manufacturer structural data. Always include this in your plans to avoid delays.
Anchor and Attachment to the Home
If your new deck touches the house, it needs a ledger board attached with lag bolts or structural screws. This applies to both composite and wood decks. But the ledger flashing may differ due to material thickness and moisture management.
Your drawings should clearly show ledger details, flashing, and how the deck surface connects—especially if you are a composite and wood deck builders nearby planning to install both types in one project. This helps your permit reviewer see how materials work together.
Railing and Safety Requirements
Railings must follow Cincinnati code if your deck is over 30″ above grade. Both composite and wood decks require guardrails at least 36″ tall. But composite rail systems may need connection details and railing load information.
Your plan set must include railing posts layout, connection hardware, and deck surface interface. If you search for **composite and wood deck builders near me**, make sure they include detailed railing specs in their permit submissions.
Permitting and Plan Submission
Submit permit drawings online or in person at the City of Cincinnati Building & Inspections. Include:
- Deck layout with dimensions
- Joist spacing and beam schedule
- Material specification sheets (especially for composite boards)
- Ledger attachment diagram
- Railing details and post connections
Include manufacturer documentation for joist loads and deflection limits. Wood decks follow code tables, but composite needs manufacturer input. A thorough plan set speeds up review.
Questions? Call the plan exam line at 513‑542‑8600.
Review and Inspection Differences
Inspectors check under your deck frame before installing deck boards. With composite decks, they may verify joist spacing closely and check manufacturer specs. Wood decks follow standard spans.
Later inspections cover ledger flashing, guardrails, stair attachment, and footings. Both types get similar final checks. Composite differences mainly matter in early frame inspection.
Cost and Time Implications
Composite decks cost more per board foot and may require more framing labor. But permit reviewers expect material specs. Having your composite and wood deck builders near me include these in plans helps avoid resubmission delays.
Wood decks are easier to design with standard code data. Composite decks may add review time if documentation is missing. Plan accordingly in your timeline.
Where to Find Code References
Refer to these local ordinance sections when preparing plans:
Also check composite board manufacturer data for span tables and load limits. Attach these in your upload to the city portal.
Choosing the Right Builder
Look for contractors who understand both materials. Ask: “Do you include composite joist span charts and ledger flashing detail in your permit sets?” Good builders will provide detailed drawings upfront.
Including proper documentation helps you get approval quickly and starts building sooner.
Conclusion
Composite decks require stricter joist spacing and load details in drawings. Wood decks follow simpler code spans. Both need ledger, railing, and footing details in permit plans.
Please consult a licensed deck builders in Cincinnati with experience in permit-ready drawings. It saves time, money, and ensures your deck is safe and approved.