Product Description
OWT-Lite Ironwood Post Bases — OZCO OWT (Multiple Sizes)
- Finished post-to-surface base — Decorative Ironwood plates and Hex Cap Nuts.
- Exterior-ready — Hot-dip galvanized steel with black powder-coat.
- Complete kits — Base plate, decorative side plates, H-bolts, Timber Screws.
- Multi-surface mounting — Concrete, wood, stone, or Oz-Posts (per OZCO guidance).
OWT-Lite Ironwood Post Bases secure wood posts to decks, slabs, or stone while adding a finished, architectural style to the joint. The base elevates the post slightly off the surface to help reduce moisture wicking and prolong the life of treated lumber, and it conceals anchors and hardware behind decorative side plates. Each kit includes matched fasteners and Hex Cap Nuts, so you can complete a clean installation without hunting for specialty screws. Use the fit ranges to choose the correct base for your actual post size, and select anchors appropriate to your surface (concrete, wood, or stone). For a coordinated look across the project, pair these bases with Ironwood 90° connectors and T-tie plates on the same structure.
Why Choose This
- Decorative + durable base where posts meet deck or slab.
- Kit convenience with matched fasteners and HCNs.
- System consistency with Ironwood brackets, plates, and hangers.
Specifications
| Series | OWT-Lite — Ironwood Post Bases |
| Materials / Finish | Hot-dipped galvanized steel; black powder-coat |
| Mounting | Concrete, wood, stone, or Oz-Posts (per OZCO) |
Size Matrix (Fit Ranges)
| Base Size (Nominal) | Actual Post Size Range | Kit Includes | Notes |
| 4"×4" | Fits ~3.5" to 4.0" posts | 1 Base Plate; 2 Decorative Plates; 4 Hex Cap Nuts; 4 H-Bolts (⅜"); 4 × 1-3/4" OWT Timber Screws | Common for rail posts, small pergolas |
| 6"×6" | Fits ~5.5" to 6.0" posts | 1 Base Plate; 2 Decorative Plates; 4 Hex Cap Nuts; 4 H-Bolts; 4 OWT Timber Screws | Typical for pergolas, pavilions |
| 8"×8" | Fits ~7.5" to 8.0" posts | 1 Base Plate; 2 Decorative Plates; 4 Hex Cap Nuts; 4 H-Bolts; 4 × 3-3/4" OWT Timber Screws | Large timber features and entries |
Installation (Quick Steps)
- Layout & anchor the base plate to the surface per substrate (concrete/wood/stone).
- Set post; attach decorative plates; insert H-bolts and Timber Screws.
- Finish with Hex Cap Nuts; verify plumb.
Buying Guide
- Post size — Choose the base that matches actual post size within the fit range above.
- Surface type — Select anchors appropriate to concrete, wood, or stone.
- Match the system — Coordinate with Ironwood 90° Connectors and T-Tie Plates.
Frequently Asked Questions
- What is included with OWT-Lite Ironwood Post Bases?
- Each kit includes a base plate, two decorative side plates, four Hex Cap Nuts, H-bolts, and OWT Timber Screws (lengths vary by size).
- Can OWT-Lite Ironwood Post Bases be mounted to concrete or stone?
- Yes. OZCO specifies mounting to concrete, wood, stone, or Oz-Posts with appropriate anchors.
- Are OWT-Lite Ironwood Post Bases corrosion resistant?
- Yes. They use hot-dipped galvanized steel with a black powder-coat finish.
Comparison
- OWT-Lite Ironwood Post Bases (this item) — Decorative bases with included hardware for deck/slab mounting.
- Ironwood 4" Outside 90° Connector — Coordinated outside-corner reinforcement.
- OWT-Lite 5" T-Tie Plate — Matching T-junction aesthetic plate.
