2A Modified Crushed Stone

2A Gravel at Union Quarries


2A modified stone is ideal for construction projects where compaction and stability are essential.

What Is Modified or Crushed Stone?


Crushed stone is a construction aggregate, similar in appearance to gravel. A few types of rock that are most commonly used are argillite, granite, quartzite, and limestone. The stone is mined and then crushed into specific sizes suitable for a variety of applications.


Crushed stone can be produced from nearly any variety of hard rock, making it a sustainable resource. Union Quarries uses crushed limestone to generate 2A gravel.


Various sizes of crushed stone are essential for many construction and landscaping projects. For example, finer varieties of crushed stone are frequently used as a base material for pavement, while larger stones may be used decoratively along walking paths or bodies of water.


Grades of crushed stone are categorized by the size of the stone after it has been crushed. PennDOT 2A stone falls in the middle of the range of crushed stone grades, combining a mixture of coarse and fine stone.


Union Quarries provides 2a modified stone to the Central Pennsylvania region.

2A Stone Size


2A modified has a top rock size of 1.5 to 2 inches. This aggregate also contains fine stones.


PennDOT 2A stone is primarily a clean material. It will compact for stability, and it provides adequate drainage.

Uses for 2A Modified Stone


Because of its size, 2A modified stone is best suited for surfaces and areas requiring compaction. Here are some standard commercial and residential applications for the material of this grade:


  • Parking lots.
  • Driveways.
  • Walking paths.
  • Landing pads.
  • Fill material.
  • Bases for roads.


Once it has been compacted, 2A provides an excellent base for an area where blacktop is to be laid.


If you’re planning on taking on any of these construction projects, 2A gravel might be the right material for you. Wondering where you can get 2a modified stone near me and how much 2a stone you will need? Calculate how much material you are likely to need to cover all planned areas, then contact Union Quarries in Central Pennsylvania to request a free quote.

2A vs 2B Stone


These types of stone are very similar, so what’s the difference between 2a and 2b stone? The main difference is that 2a has limestone dust mixed in with the stone. The limestone allows the stone to create a compact and stable surface that doesn’t drain. This type of stone surface is useful under slabs and as road bases.

Where Can I Find 2A Stone Near Me?


Union Quarries has been Central PA’s reliable provider of crushed stone for over half a century. We offer 2A modified stone as part of a comprehensive range of sizes of crushed stone to fit the needs of any commercial or residential construction project.

Union Quarries Has the Crushed Stone You Need


Access to a reliable producer of stone, concrete and blacktop is essential to completing a successful construction job on time and on budget. Union Quarries provides these products from Carlisle to the entire Central PA region. Employee safety is our top priority, and we offer specialized services that you won’t find at any other stone quarry in Pennsylvania.


If you’re a homeowner, contractor, developer or builder wondering which grade of crushed stone will work best for your next project, don’t hesitate to get in touch with Union Quarries. We deliver to Cumberland County, Dauphin County, Perry County and York County. Give us a call at (717) 249-5012 or contact us online to discuss how we can get you set up with the right stone for your commercial or residential project.

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