Product Description
OZ-Post® I3-850 Ornamental Post Anchor — 3″ × 3″ Posts — 34″ Length
- No-dig anchor for 3″ square posts — Set steel or aluminum ornamental posts without digging or concrete
- Deeper embedment — 34″ overall length for added depth on taller panels and wind-exposed sites
- Durable construction — Hot-dip galvanized steel body with a black powder-coated sleeve for a clean finished look
- Consistent, clean installs — Drive nearly flush; leave ≈ 3/4″ of sleeve above grade for easy fastening and a neat transition
- Driver-kit ready — Installs with manual or jackhammer driver kits; use the HSP-I3 hammer spacer when driving with a kit
Install 3″ ornamental fence posts fast and clean with the OZ-Post I3-850. Drive the anchor until only a small portion of the sleeve remains above grade, then insert the post and secure through the pre-drilled sleeve—no excavation, forms, or cure time. The hot-dip galvanized shaft transfers load into the soil while the square, black sleeve captures the post and blends with typical black ornamental systems. OZCO notes that its ornamental anchors have been wind-load tested up to 120 mph for privacy fencing (laboratory conditions; always size the system to your site and code). For dense or rocky sites, a jackhammer driver kit with the correct hammer spacer keeps the driver centered for a smoother install.
Why Choose This
- Speed & simplicity — Set posts and start hanging panels the same day
- Neat appearance — Black sleeve maintains an ornamental look at grade
- Built to last — Hot-dip zinc coating and elevated post base help reduce corrosion over time
Specifications
| Model / Item # | I3-850 (OZ-Post® Ornamental), Item 30360 |
| Fits Post Size | 3″ × 3″ square steel or aluminum posts |
| Overall Length | 34″ (drive nearly flush; leave ≈ 3/4″ sleeve exposed) |
| Sleeve Length | ~7.47″ sleeve; ~27.53″ below-grade anchor section |
| Material / Finish | 2.5 mm hot-dip galvanized steel body; black powder-coated sleeve |
| Weight | ~8.1 lb (each) |
| Included | I3-850 post anchor (post fasteners sold separately) |
| Driver Options | MDK-13 Manual Driver Kit; JDK-10 Jackhammer Driver Kit — use HSP-I3 hammer spacer |
| Typical Usage | Ornamental steel/aluminum fence runs, ornamental sign posts, wayfinding/street signs |
Installation
Lay out post centers and call 811 to locate utilities. Using a manual driver or jackhammer driver kit with the HSP-I3 spacer, drive the I3-850 to grade leaving ~3/4″ of sleeve exposed. Insert the 3″ post, check plumb, and secure through the sleeve with exterior-grade self-drilling screws. In rocky soils, pre-drilling may be required; solid bedrock typically calls for an alternate footing. Complete the panel install per your fence system’s rail/bracket instructions.
Resources: Manufacturer’s Warranty
Buying Guide
- Choosing size: For smaller posts, see I2-850 (2″ × 2″) or I25-850 (2-1/2″ × 2-1/2″).
- Tools & accessories: For multi-post runs, a jackhammer driver kit is fastest. Use the HSP-I3 hammer spacer to keep the driver centered in the sleeve.
- Finish match: Black sleeve complements most black ornamental systems; apply touch-up at fasteners if desired.
Frequently Asked Questions
- Do I need concrete?
- No. This is a drive-in system designed to eliminate digging and concrete in qualifying applications.
- How much sleeve should show above grade?
- Leave roughly 3/4″ exposed so you can drive fasteners and maintain a clean finished look.
- Are screws included?
- Post attachment fasteners are typically purchased separately; choose exterior-grade self-drilling screws sized to your post wall.
- Which spacer do I need with a driver kit?
- Use the HSP-I3 hammer spacer when driving this model with a jackhammer driver kit.
- Will it work in asphalt or rocky ground?
- Often yes—many installs can be driven through asphalt and around small rocks; solid rock usually requires pre-drilling or a different footing.
Comparison
| Option | Strengths | Considerations | Best For |
|---|---|---|---|
| I3-850 (34″, 3″ × 3″) — this item | Sized for heavier 3″ posts; neat black sleeve; no concrete | Requires HSP-I3 spacer when using a driver kit | Light commercial runs, taller panels, signage |
| I25-850 (34″, 2-1/2″ × 2-1/2″) | Same depth for mid-size posts | Not for 3″ posts | Residential/LC ornamental systems |
| I2-850 (34″, 2″ × 2″) | Deeper embedment for 2″ posts | Smallest of the three | Standard 2″ ornamental systems |
| Concrete-set post | Traditional method; customizable footing | Digging, cleanup, cure time | Sites where code/soil demands a footing |
Not sure if I3-850 is the right match for your post size, fence height, and soil conditions? Contact us and we’ll help you choose the correct anchor, spacer, and driver kit for a clean, long-lasting installation.
