Building Outdoor Steps on a Steep Slope

Building Outdoor Steps on a Steep Slope

A 12-foot rise on a steep hill requires safe, stable steps. Prefabricated concrete stair units exist but can be hard to find retail.

Search Strategies

• Google: "precast concrete stairs residential", "concrete step units", "modular outdoor stairs".
• Check manufacturers: Oldcastle, Stepstone, local precast concrete plants.
• Search "concrete stair molds" if you want to pour your own.

DIY Alternative: Landscape Timber Steps

1. Excavate step treads into slope.
2. Set 6x6 pressure-treated timbers as risers, pinned with rebar.
3. Backfill with gravel, compact.
4. Surface with pavers, flagstone, or gravel.

Safety First

Ensure uniform rise (7–7.5 inches) and run (11–12 inches). Add handrails if over 30 inches total rise. Consult local codes.

For steep slopes, professional installation is often worth the cost.