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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
and installation work
removing trim
Note: photos show the product washed
Reinforced concrete construction delivers serious structural performance with zero maintenance
Spread at 50mm depth
Optimum Onyx Block Concrete Sleeper diy-ready and installation workThe Optimum Onyx Block Concrete Sleeper combines a bold rock face texture with a sleek sealed onyx finish for retaining walls and garden features that make a statement. The natural block pattern and dark onyx colour bring a contemporary edge to any outdoor space, pairing perfectly with dark steel posts, stone finishes and modern minimalist plantings. Two embedded N12 steel bars and high strength concrete rated at 55 to 60 MPa deliver the structural
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