gravel
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construction materials
The Best Gravel for Retaining Wall Drainage: What to Use, What to Avoid, and How Much You Need
Use clean crushed drainage aggregate that meets your retaining-wall system’s specification; a product label such as “#57” is not enough to confirm suitability. Estimate the drainage zone, base, and block-core fill separately, and follow the approved detail for filtration, pipe, outlet, and grading.
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construction
The Best Landscaping Materials to Protect the Area Around Your Foundation
The best foundation landscaping starts with compacted soil graded away from the house and roof runoff carried away. A thin stone finish can suit the immediate perimeter, while coarse mulch belongs in set-back planting beds.