The Quadrastein is constructed with uniquely designed ‘spacer locks’ on sides, which enhance the interlocks in the paving, in spite of its square shape. A small plan size gives the paving very high strength. A potential cost saving is available by using these in lieu of 6Omm thick pavers for certain applications.

The Quadrastein is constructed with uniquely designed ‘Spacer Locks’ on sides, which enhance the interlocks in the paving, in spite of its square shape. A small plan size gives the paving very high strength. A potential cost saving is available by using these in lieu of GOmm thick pavers for certain applications.