Cast Stone Keystones
At Caliber Cast Stone, we manufacture cast stone keystones that deliver both structural function and refined visual appeal. Used to crown arched window surrounds, doorways and brick pier entries, keystones offer a classic architectural accent that completes any masonry opening with elegance and strength.
Add Elegance With Cast Stone Keystones
Timeless Elegance Meets High Performance
We offer cast stone keystones in standard sizes as well as fully custom cast stone options for non-standard spans or unique designs. Whether you're replicating an old-world aesthetic or modernizing a storefront, keystones can be tailored to complement quoins, cornices, wall copings, and window surrounds.
Our team can also help you coordinate keystones with other architectural cast stone elements to ensure a cohesive design across your project—from balustrade bases to pedestals, finials, and wall dressings.
Cast Stone Keystone Manufacturer
A Behind-the-Scenes Experience Like No Other
We invite you to visit our St. Louis manufacturing facility to see how our cast stone products are made. Unlike mass-produced imports, every Caliber keystone is locally crafted with attention to individual specifications and quality control at every stage of the manufacturing process.
See firsthand how we mold, cure, and finish architectural stone elements with precision—from keystones and wall caps to pier caps, coping stones, and more. Our team is ready to collaborate with you, whether you're a builder, architect, or homeowner working on your next stonework installation.
Why Us For Your Cast Stone Pier Caps?
Why Choose Caliber Cast Stone
- Available in standard shapes or custom design to fit unique arches and openings
- Crafted from portland-based, dry cast mixes with high compressive strength
- Seamlessly integrates with banding, window surrounds, and quoins
- Mimics the look of natural stone while offering modern durability
- Locally produced and backed by hands-on support from the Caliber team
Bring detail, distinction, and architectural character to your next project with cast stone keystones from Caliber. Call us today at (636) 978-4000 or request a quote online.