Our Mail & Parcel Pillar 2x Installation Slabs are used when installing lighter-weight, metal letterboxes such as our Mail & Parcel Pillar range. Two 500 x 500mm concrete slabs are glued together and buried below ground level to create a deeper, stronger foundation. This method adds extra weight and stability while allowing more depth for securing bolts to anchor the letterbox firmly in place. The result is a solid, long-lasting base that keeps your letterbox level and secure.
