May Marks 30 Year Anniversary
for Invisible Structures

Invisible Structures, Inc. was formed in May 1982. This month marks three decades of innovation in site development, stormwater management, and environmentally friendly solutions for building. We'd like to thank all of our customers and partners for helping us make it to 30. We are looking forward to many more years of State of the Earth Innovation!

Grasspave²– A First

Nothing else like Grasspave2 existed 30 years ago. Now, Grasspave2 is considered the pre-eminent grass porous paver. Grasspave2 was the first to be made from recycled plastic; the first to have a soil amendment included, the first product to be available in rolls; the first product to use sand as a fill material; the first product to have integrated connectors, and the first product to test its strength. Fast forward 30 years, and Grasspave2 is synonymous with quality, beauty, and sustainability.

Gravelpave²– A First

Gravel porous pavement was an innovation of Invisible Structures and Gravelpave2 is still renowned for its quality, durability, and performance. Not only was Gravelpave2 the first gravel porous pavement; it was the first product to be offered in multiple colors; the first product to have an attached fabric; the first paver to have anchors included; and the first gravel paver to pass wheelchair accessibility testing.

Rainstore³– A First

With Rainstore3, Invisible Structures once again created a completely new category in building materials – the modular stormwater detention system. Rainstore3 was also a first: the first system to be vertically interlocking; the first system to reach 94% void space; the first system to eliminate stone; and the first system to be shipped in pre-assembled units. Rainstore3 continues to be regarded for it strength, quality, and ease of installation.

Slopetame²– A First

Erosion control systems have existed for many millennia, but it took Invisible Structures just a few years to create a new standard. Slopetame2 was the first system to provide an integrated fabric and the first system to contain 100% recycled materials. Slopetame2 is regarded for its beauty, strength, and convenience.