This Architectural drawing is AutoCAD 2d drawing of Retaining wall without planters detail in AutoCAD, dwg files. The cheapest type of retaining wall is poured concrete. Prices start at $4.30 per square foot for poured concrete, $5.65 for interlocking concrete block, $6.15 for pressure-treated pine, and about $11 for stone. Dor more details and information download the drawing file.