
Past Projects
Diamond Precast Stairs works with a wide range of customers including large corporations, general contractors, government agencies, steel fabricators, framers, and residential home owners. Our goal is to serve all our customers with quality products and reliable services.

Amazon Spheres, Seattle, WA
Sellen Construction

Bellevue Community College
Mortenson Construction

500 Mercer Street
Exxel Pacific

Feher Residence
Michael Mann

Pine Springs Farms
Inland Construction

Amazon Block 14, Seattle WA
Sellen Construction

Amazon Building
GLY Construction

Seatac Light Link Rail
PCL Construction