Oldcastle 16200510 Stackable Retaining Wall Block 12 in Red

Product Description

The OLDCASTLE 16200510 is a 12-inch red Castle Wall stackable retaining wall block designed for mortar-free landscape construction. This concrete masonry unit is built for straight or curved wall layouts, giving installers flexibility on a wide range of residential and light commercial landscaping projects. The block's interlocking stackable design eliminates the need for mortar, reducing labor time and allowing repositioning during layout. Landscape contractors, hardscape installers, and experienced DIYers install this block for low to mid-height retaining applications.

This block is suited for residential and light commercial outdoor use. Common applications include garden borders, planter boxes, tree rings, and small retaining walls. The manufacturer recommends a maximum wall height of 2 feet for freestanding installations without engineered reinforcement. The red color and Castle Wall profile provide a decorative finish that blends with standard landscape aesthetics. It is sold individually, with a package quantity of 126 units per pallet.

Key Features

• 12-inch nominal length for consistent coursing in straight or curved layouts
• Mortar-free stackable design speeds installation and allows adjustment during layout
• Compatible with straight and curved wall configurations
• Suitable for planters, garden borders, tree rings, and small retaining walls
• Red Castle Wall finish provides decorative appeal without additional treatment
• Recommended maximum freestanding wall height of 2 feet

Compatibility

Designed as an OEM-style landscape masonry unit compatible with standard stackable retaining wall block systems requiring a 12-inch unit in mortar-free applications.

Installation Notes

Landscape and hardscape contractors typically install retaining wall blocks. Before installation, excavate and compact a level gravel base to ensure proper drainage and wall stability. Stack courses with consistent overlap between joints and verify level at each course. For walls approaching the recommended 2-foot maximum height, consult local building codes and engineering guidelines before proceeding.