The Redi-Rock retaining wall system is moving up with the release of XL Hollow-Core blocks, designed at 36 in. high—twice standard units’ height—in 52-, 72- or 96-in. widths. “This is the most significant innovation we’ve made to the system since the release of the Positive Connection blocks in 2011,” says Redi-Rock International President Jacob Manthei.
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