Invisible Structures Sustainable building and site development Green buiiding and sustainable design
Portable ADA Boardwalk System Drainage/Conveyance Layer Grass Porous/Permeable/Pervious Paver Gravel Porous/Permeable/Pervious Paving Subsurface Stormwater Storage Permanent Erosion Control
Design Detail/Technical Specifications Greenbuilding LEED Points Total Stormwater Management Sales and Support Frequently Asked Questions Project Profiles/Case Studies About Invisible Structure Inc.
History of Invisible Structures

Grasspave2 the Early Years
In 1982 our first grass paving system was called Ritterings and was composed of 3" PVC white rings glued onto netting and sold in 4' x 20' mats. It was the start-a-business-in-your-garage approach. In 1988 we began molding 3" black recycled HDPE plastic rings and still glued them onto netting. This roll format made installation very easy for contractors and still is the single most distinguishing feature setting us apart from all modular pavers.

Metric Influence
In 1991 Grassrings 2 (Grasspave2) was introduced as a half-meter by half-meter square of rigid 2" black recycled HDPE plastic. Grasspave2 was introduced in large rolls, for fast installation, based on metric increments.

Stormwater Management and Enviornmental Concerns
Invisible Structrures now has a complete line of Stormwater Management Products to choose from. Our products were developed to help manage stormwater and protect and enhance the envirionment.

New Headquarters
We are now located in beautiful Golden Colorado - 1600 Jackson Street, Suite 310. Our warehouse is located at 15845 E. 32nd Ave., Aurora, CO 80011.