Jul 27, 2017 - Explore board "Inexpensive retaining walls" on Pinterest. See more ideas about Outdoor gardens, Backyard landscaping and Garden retaining wall. 44 Best Inexpensive retaining walls images | Outdoor Please note: You are currently browsing img retaining walls garden walls, designs, local landscapers that is 640x360px in size. This image is listed in landscaping ideas around retaining walls category. 44 Best Inexpensive retaining walls images Outdoor, 640x360 in 78.13 KB.