Retaining Wall Block Calculator
Estimate blocks, adhesive, and base material for a retaining wall. Based on wall dimensions and block size selection.
Weight: approx 35 lbs per block.
Wall face area: 40.0 sq ft
Wall Blocks Needed120blocks
Cap Blocks (top course)20cap blocks
Adhesive Tubes5tubes
Base Gravel (6 in deep)0.56cu yd
Total Block Weight2.1tons
Installation note: Walls over 3 ft tall require batter (backward lean) of 1 in per foot of height. Walls over 4 ft typically require engineered drawings for permits. Compact the gravel base in 3-in lifts before laying the first course.