PRECAST CONCRETE BLOCKS
Precast World Block Solutions: Retaining Walls, Landscaping & Steps
Transform your landscape with structural strength and a clean, natural-stone look. Poured locally at Kohnen Concrete using premium World Block forms, our precast concrete blocks and steps deliver a heavy-duty, long-lasting solution for residential, commercial, and agricultural projects.
Whether you are controlling erosion on a steep grade or designing a multi-tier backyard entrance, our precast products combine exceptional durability with a high-end finish.
Why Choose Our Precast World Blocks?
- Precision-poured locally: Every block is cast in our facility using heavy-duty World Block forms for exact specs, consistent strength, and a uniform fit.
- Structural retaining power: Engineered to secure large soil loads, prevent slope erosion, and turn steep hillsides into usable, level land.
- Natural stone texture: A molded face that mimics stacked, chiseled stone, delivering high structural strength with strong visual appeal.
- Interlocking design: Interchangeable blocks stack seamlessly for retaining walls, decorative landscape borders, and stepped entries.
Kohnen Concrete can help you select the right World Block units and steps for your site. Reach out and let's discuss your retaining wall, landscaping, or entrance project!
Installation Technique
World Block walls are designed for repeatable installation with a built-in setback for stability.
- Prepare a compacted crushed-stone or concrete leveling pad so the first course is level, aligned, and fully supported.
- Then place the base course on the prepared pad and stack each course with the designed 2-inch setback. World Block units are formed with an offset trough and knobs so this batter is built in.
- Also use matching corner, half, recess, cap, and step units to keep joints tight and the wall line consistent.
- And for taller or load-bearing walls, applications may require geogrid reinforcement, specified setbacks, and inspection.
Drainage Systems
Proper drainage is essential to long-term wall performance. Water pressure behind a wall is one of the most common causes of movement and failure.
- Install clean crushed-stone drainage fill immediately behind the blocks to move water away from the wall face.
- Place a perforated drain pipe at the base of the wall, sloped to a positive outlet, so collected water can exit the system.
- Use geotextile fabric to separate drainage stone from native soils and keep fines from clogging the drain.
- Grade the surface so runoff is directed away from the wall and does not pond against the top course.