When to Use Sharp Sand vs. Building Sand in Construction Projects

Sand is used in almost every type of building work. That said, not all sand is the same, with different types of sand each serving a unique function.

Two of the most common types of sand are sharp sand and building sand. To the untrained eye they may look similar, but they don’t share the same properties.

However, both types of sand have very distinct properties, meaning choosing the right one will have a significant impact on your project. Knowing when to use sharp sand vs building sand will affect your project’s strength, finish, and overall structure.

In this blog, we’ll explain the key differences between these two types of sand, cover what sharp sand is used for, and how building sand compares in various construction projects.

Sharp Sand vs Building Sand – Key Differences

Sharp sand and building sand both have different textures, sizes, properties, and uses. Before we look at when to use each one, let’s first break down what sharp sand and building sand actually are on a base level.

What is Sharp Sand?

Sharp sand, also called grit sand or coarse sand, has large, rough grains. The grains are angular, giving them a gritty texture. Due to this, sharp sand has good drainage properties and doesn’t clump together like building sand.

Sharp sand is also heavier than building sand. The rough grains stay separate, and you can feel the difference when you touch them with your fingers as this type of sand doesn’t have a smooth feel.

Instead of flowing easily, sharp sand stays solid and firm. Its roughness and weight make it unique compared to other types of sand.

What is Building Sand?

Building sand, sometimes called soft sand, has much finer grains. These grains are small and rounded, giving the sand a smoother texture. It’s more cohesive than sharp sand and can hold its shape slightly better when wet.

Building sand is lighter by comparison. The grains fit together more tightly, reducing the risk of shrinking or cracking after it has dried. When you press it, soft sand tends to hold its shape better. It’s less gritty and more consistent.

Building sand flows easily, and, unlike rough sand (sharp sand), it doesn’t stay rigid. Instead, it moves smoothly and settles without much resistance.

Ideal Applications

Understanding different uses of sand will benefit your project’s quality significantly. Sharp sand and building sand each have their strengths and weaknesses.

When to Use Sharp Sand

Sharp Sand is best when you need strength and stability. It’s more commonly used for laying slabs, mixing concrete, creating screed, and setting block paving. Landscapers also use it for improving drainage in soil and garden beds. The rough, heavy texture gives strong support where it’s needed most.

That said, due to its gritty texture, it’s best not to use it in places where comfort or safety is important. For instance, you wouldn’t want to use it in playgrounds or other surfaces where children play.

When to Use Building Sand

Building Sand, on the other hand, is used where smoothness and flexibility matter more. It’s perfect for mixing mortar for bricklaying, as well as being great for pointing work, rendering walls, and plastering surfaces. The soft grains help create a neat, even finish that holds well without cracks.

While it can be used for some drainage applications, building sand isn’t always suitable. Its fine texture can lead to clumping and poor stability in places that require strong drainage or structural support.

Both sands have a clear purpose. One isn’t necessarily “better” than the other, with choice depending on the job at hand. Sometimes a project even needs a mix of both, depending on different layers or stages. The important thing is to match the sand’s qualities with what the work demands.

How to Choose the Right Sand for Your Project

If you’re debating whether to use sharp sand or building sand for your next project, think about the end result. Is it strength you need? Or is it a clean, neat bond?

If you’re laying a patio or block paving, go with sharp sand. It won’t shift easily due to its angular particles locking together, and it allows water to flow smoothly and keeps the structure intact.

For any job that involves mortar, stick with building sand. It’s smoother and bonds well with cement while providing a finished look.

Also, consider the location of the project. If the area gets wet or needs drainage, sharp sand works better. But if the job is in interior areas or decorative, building sand would fit the best.

Tips on Maintaining Sand Aggregates

Once you’ve decided on the sand aggregate that you need for the project, you’ll want to keep it in good shape. You can maintain your sand properly by following these tips:

Keep It Covered: Rain can change the moisture levels of your sand, which can change your mix. Keeping your sand covered at all times is essential to prevent that from happening.

Watch for Contamination: If you notice oil, leaves, or other waste in your storage pile, move it to another location to maintain its quality.

Use Older Aggregates First: If you’ve had the sand aggregates for a while, prioritise using older materials before opening a new bag. This ensures optimal usage of your sand aggregate.

Contact Middleton Aggregates to Get the Right Sand Aggregates For Your Project

When you’re comparing sharp sand vs building sand, the key is understanding where each one is best used. The difference really does impact the final result of your project, so think about what your project demands and make a decision accordingly.

Now you know the differences between these two sand aggregates, you may be looking for a reliable supplier for your next project.

At Middleton Aggregates, we supply high-quality sand aggregates, ideal for a variety of applications. We also offer a wide range of durable aggregates and fill materials for various construction and landscaping projects. And, if you need it, our plant hire service is designed to meet all your construction needs.

Operating from Blackborough End, King’s Lynn, we serve Norfolk, Suffolk, Lincolnshire, Cambridgeshire, and the wider UK. For any questions you may have, our team of industry experts is on hand to provide you with the best advice.

For more information on our products and services, visit our website or contact us to find out more.