Pennsylvania Bluestone Square Cut – Natural Cleft

Penn Blue Pattern Flagstone is a premium natural sandstone sold by the square foot. It features a stunning, layered palette of blue, green, rust, brown, and lilac tones. Offering a classic East Coast square-cut style, this stone features a natural top and bottom surface with clefts that yields a rustic 1/2″ to 1.5″ thickness range. Its coarse, anti-slip sandy texture provides an elegant, highly durable choice for character-rich patios, walkways, and pool decks.

Product Specifications

• Style: Square cut pattern stone with a natural top/bottom and clean, sawn edges.
• Available Sizes: All sizes are intentionally sawn approximately 1/2″ short of listed dimensions to seamlessly accommodate a standard 1″ grout joint:• 12″ x 12″ (Actual: 11.5″ x 11.5″)• 12″ x 18″ (Actual: 11.5″ x 17.5″)

  • 12″ x 24″ (Actual: 11.5″ x 23.5″)

  • 12″ x 36″ (Actual: 11.5″ x 35.5″)

  • 18″ x 18″ (Actual: 17.5″ x 17.5″)

  • 18″ x 24″ (Actual: 17.5″ x 23.5″)

  • 24″ x 24″ (Actual: 23.5″ x 23.5″)

  • 24″ x 36″ (Actual: 23.5″ x 35.5″)

• Approximate Thickness: Nominally 1″ thick, with a natural rustic variance ranging between 1/2″ and 1.5″.
• Texture: Coarse, sandy surface profile with organic natural clefts for built-in slip resistance.
• Color Palette: Vibrant, diverse hues of blue, green, earthy rust, brown, and subtle lilac.
• Measurements Sold: Priced and sold by the square foot (Sq. Ft.) to make custom layout planning simple.

Best Common Uses

• Patios & Courtyards: The clean, sawn-edge pattern delivers a timeless, balanced look while creating a highly durable outdoor entertaining area.
• Pool Decks & Walkways: Stays comfortably cool underfoot during summer heat and provides an elegant, slip-resistant surface around water features.
• Outdoor Living Spaces: Provides an organic yet refined masonry surface for custom outdoor kitchens, fireplaces, or accent paths.
• Interior Flooring & Accent Walls: Bring rich texture and color indoors for entryways, mudrooms, or striking feature walls.

Natural Beauty, Naturally Unique

Every piece of natural stone carries its own character. Color and texture will vary from one load to the next, just as they do in nature. Our samples and photos provide a strong representation, but exact matches to past panels or pictures cannot be guaranteed. Embracing these variations is part of what makes building with natural stone so special—bringing elegant beauty, individuality, and decades of durability to your project.

Recommendation: For larger projects, we highly recommend requesting samples from our current inventory and reviewing them on-site to ensure your overall satisfaction before delivery.

Flagstone Delivery & Yard Pickup

Penn Blue Pattern Flagstone is available for immediate pickup at our Kansas City, Kansasrock yard. We also provide flatbed delivery across the entire Kansas City metro area, Johnson County, and surrounding regions up to a 100-mile radius. Contact our team today for a fast freight quote, or visit our stone yard to view our current stock in person!