Product Description
OZ-Post® I25-850 Ornamental Post Anchor — Fits 2-1/2″ × 2-1/2″ Square Posts — 34″ Length
- No-Dig Anchor for 2-1/2″ Posts — Drives into the ground to set square steel or aluminum ornamental posts without concrete
- Deeper Embedment — 34″ overall length provides added depth for taller panels and wind-exposed sites
- Durable Construction — Heavy hot-dip galvanized steel body with a black powder-coated sleeve for a clean finished look
- Consistent, Clean Installs — Leave ≈ 3/4″ of sleeve above grade for easy fastening and a neat transition to the fence line
- Driver-Kit Compatible — Installs with a manual driver or jackhammer driver kit; uses the HSP-I25 hammer spacer for driving
Set 2-1/2″ ornamental fence posts fast and clean with the OZ-Post I25-850. This drive-in anchor eliminates digging and wet concrete, letting you set posts and start hanging panels the same day. The hot-dip galvanized shaft transfers loads deep into the soil, while the square, powder-coated top sleeve captures the post and blends with typical black ornamental systems. For best results, drive the anchor until only a small portion of the sleeve remains above grade; then insert the post and secure through the pre-drilled holes with exterior-grade screws. The I25-850 is a popular choice for residential and light commercial runs, ornamental sign posts, and similar applications where speed, appearance, and corrosion resistance matter.
Why Choose This
- Speed & simplicity — No excavation, forms, or cure time; start building immediately
- Neat finish — Black sleeve maintains the ornamental look at grade
- Built to last — Hot-dip galvanizing and elevated post base help reduce corrosion over time
Specifications
| Model / Item # | I25-850 (OZ-Post® Ornamental), Item 30340 |
| Fits Post Size | 2-1/2″ × 2-1/2″ square steel or aluminum posts |
| Overall Length | 34″ (drive nearly flush; leave ≈3/4″ sleeve exposed) |
| Sleeve Length | Approx. 5.4″–6″ (black powder-coated) |
| Material / Finish | ~2 mm hot-dip galvanized steel body; black powder-coated sleeve |
| Weight | Approx. 7.8–8.0 lb each |
| Included | I25-850 post anchor (post fasteners sold separately) |
| Driver Options | MDK-13 Manual Driver Kit or JDK-10 Jackhammer Driver Kit; HSP-I25 hammer spacer required when driving with kits |
| Typical Usage | Ornamental steel/aluminum fencing, 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-I25 spacer, drive the I25-850 to grade leaving approximately 3/4″ of sleeve exposed. Insert the 2-1/2″ 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. Follow your fence system’s rail/bracket instructions to complete the panel install.
Resources: Manufacturer’s Warranty
Buying Guide
- Choosing length & size: This 34″ anchor is sized for 2-1/2″ posts. For 2″ posts use the I2-850 (2″ × 2″); for 3″ posts use the I3-850 (3″ × 3″).
- Tools & accessories: For runs of multiple posts, a jackhammer driver kit is fastest. When driving the I25-850, use the HSP-I25 spacer for proper engagement.
- Surface finish: Black sleeve blends with most black ornamental systems; touch-up paint may be used at fasteners if desired.
Frequently Asked Questions
- Do I need to set posts in 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?
- No. Use exterior-grade self-drilling screws sized for your post wall thickness.
- Which spacer do I need with a driver kit?
- Use the I25 hammer spacer when driving this model with manual or jackhammer driver kits.
- 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 |
|---|---|---|---|
| I25-850 (34″, 2-1/2″) — this item | Sized for 2-1/2″ posts; neat black sleeve; no concrete | Requires I25 hammer spacer when using a driver kit | Taller panels, light commercial runs, sign posts |
| I2-850 (34″, 2″) | Same depth for smaller 2″ posts | Not for 2-1/2″ posts | Standard 2″ ornamental systems |
| I3-850 (34″, 3″) | Fits heavier 3″ posts | Larger profile | Heavier ornamental or signage |
Not sure if the I25-850 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.
