Making a paver base is the first step in building a sturdy patio foundation, which will ensure that your project lasts a lifetime. The basis for pavers is made of crushed rock with sharp sharp-edged edged stones of varied sizes. As a result, precise compaction can cre create a sturdy foundation. Perfect for paving stones or retaining walls to be placed on... Patio paver foundation panels are made of lightweight high-density high polypropylene. To maintain the panel edges flush with one another, the edges are often tongue-andtongue groove ove or shiplap. You might be perplexed as to how a thin plastic mat can successfully take the place of a 6-inch inch layer of compacted gravel. The typical base for a paver or stone patio is a 66-inch inch-deep layer of compacted gravel. https://modutile.com/product/gravel gravel-pavers-outdoor-basketball-court-base