Indiana Limestone window sills work to protect against water damage and add an accent band to any residential or commercial window project. Choosing Indiana Limestone window sills adds a timeless complement to your design. Available in both gray and full color blend, you can choose between a smooth or rock face finish to match the architectural style you desire. Indiana Limestone window sills are produced as a simple rectangular shape.

They are available in three standard course heights of 2-1/4”, 3”, and 4”. We offer standard sill depths from 4-1/2” to 24”. Each sill comes jointed to a standard length of 4’, 6’, or 8’. Window sills are offered with smooth edges or rock faced along one long edge. A drip edge can also be added as needed.



Best-in-Class Quality

For nearly a century, Indiana Limestone Company has been the leading supplier of the world’s finest stone to architects. Indiana Limestone Company provides the widest range of sizes, colors, and grades for all of our products. You can depend on Indiana Limestone to meet your demands and time constraints with our best-in-class lead times.

Classic Complement

Choosing Indiana Limestone window sills adds the classic complement to your architectural design. Available in both gray and full color blend in a standard grade, you can choose between a smooth or rock face finish to match the architectural style you desire.

Thin Veneer Sills Available

Indiana Limestone thin stone sills provide the perfect finishing touch for any thin stone veneer architectural project. Our thin veneer window sills come standard in a 2-1/4” course height, 2-1/2” or 3-1/2″ depth, and 4’ length. Available in smooth, rock faced, and rock faced with a drip edge.

Quick Turnaround

Indiana Limestone Company offers a quick turnaround on all of our products. It’s easy to incorporate genuine Indiana Limestone into your next landscape design.

Available Colors



Light to medium shades of gray with some veining and grain movement visible in the face and fine to medium grained stone.

Full Color Blend


A natural compilation of the full range of buff to medium gray shades with the same great subtle veining in a standard grade.

Delivery, Storage, and Handling

  • Indiana Limestone sills should be unloaded and handled carefully to prevent excess breakage.
  • Product will be supplied adequately packaged on pallets or timbers to keep finished stone clear of the ground.
  • Storage area should be a well-drained space, graveled or chipped for protection against mud splatters.
  • Sills should be handled carefully to avoid excess chips and scratches.
  • When using pry bars to move stone into place, use padding to protect the edges of the stone.

You will be redirected to Polycor’s shop to order.

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The Stone Boutique