3/8" Limestone Screenings

Limestone Screenings, also commonly known as limestone fines, screenings, or crusher run dust, are a fine-textured aggregate produced during the crushing of limestone rock. This material consists of tiny stone particles and dust, allowing it to pack into a remarkably dense, semi-permanent surface. Because of its fine-grained nature, it binds together significantly better than larger gravel, creating a smooth, stable surface that is ideal for walkways, patio foundations, and leveling.

This material provides a clean, light-grey appearance that mimics the classic Texas limestone look. It is an excellent, cost-effective choice for projects that require a smooth, flat base where larger stones would be impractical or uncomfortable.

🧮 Skip the Guesswork: Unsure how much screenings to order? Avoid purchasing mistakes or shorted projects by utilizing our interactive material calculator positioned directly at the top of this product page. Simply input your area's total length, width, and your desired material depth in inches to get an instant volume requirement for a secure, confident checkout.

Limestone screenings perform best when properly leveled and compacted, creating a surface that is both stable and aesthetically pleasing. Follow these straightforward installation rules:

1. Clear and Prep: Excavate the area to remove existing vegetation and topsoil. Establish a clean, firm native dirt sub-base.
2. Spread Uniformly: Distribute the screenings evenly across the area to your target depth. For a stable path or base, a 2 to 3-inch layer is typically sufficient.
3. Moisten: Lightly mist the screenings with water during the spreading process. Moisture is essential for this product, as it helps the fine dust "activate" and bond the particles into a solid layer.
4. Compact Firmly: Use a plate compactor or a heavy hand tamper to vibrate and press the screenings down. Proper compaction is what creates the firm, smooth surface finish.

Coverage Estimates

• 1 Cubic Yard: Covers roughly 160 square feet at a 2-inch depth.
• 1 Cubic Yard: Covers roughly 100 square feet at a 3-inch depth.

Limestone screenings are a high-utility material used in construction and landscaping for their ability to compact into a stable surface:

1. Paver and Flagstone Base: Creates a perfectly smooth, level bedding course for setting pavers and natural stone, preventing future rocking or sinking.
2. Walkways and Garden Paths: Provides a firm, dust-free walking surface when properly compacted, ideal for informal or decorative garden paths.
3. Paver Joint Sand: Because of the fine particle size, screenings are sometimes used to fill narrow joints between flagstones or pavers.
4. Animal Pens and Stalls: Its ability to compact into a solid, clean, and drainage-friendly floor makes it a popular choice for stall bases and livestock containment areas.

Limestone screenings are designed to be a permanent, low-maintenance surface:

1. Manage Drainage: Ensure your finished project area is graded to allow for water runoff. While the material is dense, it is not impervious; proper sloping keeps water from pooling.
2. Weed Prevention: While screenings naturally inhibit weed growth, wind-blown debris can accumulate over time. A quick pass with a leaf blower or stiff-bristled broom will keep the surface looking fresh.
3. Surface Refresh: If the surface develops high-traffic wear or pits over several years, simply rake the top layer, mist with a little water, and re-compact to restore the smooth finish.

• Material Type: Finely crushed limestone aggregate.
• Common Names: Limestone Screenings, Limestone Fines, Crusher Run Dust, 3/8" Minus.
• Size Profile: 3/8" minus (particles ranging from 3/8 inch down to fine dust).
• Texture Profile: Dense, fine-textured aggregate that bonds into a smooth, stable surface when compacted.
• Local Logistics: Available for home and commercial jobsite delivery throughout Austin, Kyle, San Marcos, and surrounding ZIP codes. Can be bundled onto a single delivery order with sand, mulches, or other hardscape stone blocks.

Natural Stone Disclaimer:
Natural stone varies in color, size, and texture. These variations are normal and part of what makes natural material unique. No two loads are identical.

What are Limestone Screenings? 
Limestone Screenings (also called fines) are a fine-grained limestone byproduct. They are screened to a 3/8-inch-and-smaller size, which allows them to pack down tightly into a very smooth, stable surface. They are essentially the "dust" and smallest chips from the stone crushing process.

What is the difference between Screenings and Road Base? 
Limestone screenings are much finer (3/8" minus) and are used primarily for smooth paths, leveling, and paver bases. Road Base is a coarser mixture of larger rocks and fines designed for heavy-duty structural load-bearing, such as driveway foundations and parking pads.

Can I use screenings for my patio base? 
Yes. Screenings are an excellent material for creating a smooth, flat "bedding layer" underneath pavers or flagstone, helping ensure the finished surface is level and stable.

Do I need a base underneath 3/8" limestone screenings? Yes. Limestone screenings are primarily used as a fine finishing layer or base foundation material over compacted road base for flagstone patios, pavers, or artificial turf sub-bases.

How thick should I spread 3/8" limestone screenings? For patio or paver bedding layers, spread it 1 to 2 inches thick before screeding and compacting.

Will 3/8" limestone screenings drain water? No. Because limestone screenings consist of tiny stone dust and micro-particles that pack down almost like concrete, they do not drain water well and are designed to shed surface moisture when compacted.

Can 3/8" limestone screenings be used for a driveway? No, screenings are too fine and powdery to act as a standalone driveway surface; they will turn into thick mud or dust under vehicle tires. They are meant for sub-base leveling and joint filling.

How much does 1 cubic yard of 3/8" limestone screenings cover? At 1 inch deep, 1 cubic yard covers about 320 to 330 square feet. At 2 inches deep, it covers about 160 to 165 square feet.

Does 3/8" limestone screenings break down with time? When compacted beneath pavers or stone, it settles into a rock-solid, semi-cemented layer that holds its structure tightly over time.

Is 3/8" limestone screenings the right size for French drains? No. Screenings will clog French drain systems entirely because the fine dust packs tightly and blocks water from reaching the pipe. Use washed gravel instead.

What is the conversion from cubic yards to tons for 3/8" limestone screenings? Limestone screenings convert at roughly 1.35 to 1.4 tons per cubic yard (about 2,700 to 2,800 pounds per yard) because the stone dust packs densely with virtually zero air pockets.