Flagstone Installation

Flagstone Installation: A Step-by-Step Guide

Interlocking – a term frequently tossed around in fields as diverse as construction, fashion, and technology. But what is it that makes this concept so versatile and integral to our everyday life? In this article, we’ll delve deep into the world of interlocking, shedding light on its principles, its multifaceted applications, and the extraordinary potential it holds for the future.

Why Choose Flagstone?

Before we dive into the installation process, let’s discuss why flagstone is a good choice for your outdoor space.


Flagstone is incredibly durable and can withstand extreme weather conditions. The material exhibits a great level of resistance to cracks, chips, and scratches, rendering it a highly suitable option for places with significant foot traffic.


Flagstone is available in a diverse range of colors, forms, and sizes, so affording individuals the opportunity to fashion a distinctive and customized layout for their outdoor area.

Natural Appearance

Flagstone has a natural, rustic appearance that blends well with any landscape. It can give your outdoor area a touch of elegance without making it look too fake.



Flagstone Installation Process

Installing flagstone can be a DIY project if you have the right tools and follow the correct steps. Here is a step-by-step guide to flagstone installation:

Step 1: Preparation

Site Preparation: The first step in flagstone installation is site preparation. Remove any existing surface material, such as grass, plants, or old paving. Dig down to a depth of about 6-8 inches to create a base for the flagstone.

Base Material: Next, you need to prepare the base material. A combination of fragmented stone and fine particles of stone dust is an effective choice for a foundational material.

 Spread a layer of the base material, about 4-6 inches thick, and compact it using a mechanical compactor.

Leveling: Use a level to ensure that the base material is flat and even. This is crucial for the stability of the flagstone surface.

Step 2: Laying the Flagstone

Layout: Before you start laying the flagstones, it’s a good idea to lay them out in the desired pattern on a flat surface. This will help you to visualize the final result and make any necessary adjustments.

Laying the Stones: Start laying the stones one by one on the prepared base. Tap each stone into place with a rubber hammer. Make sure that the stones are level with each other and that there are no gaps larger than 1-2 inches between them.

Step 3: Filling the Joints

Joint Material: The next step is to fill the joints between the flagstones. You can use sand, mortar, or a mixture of both. Sand is easier to work with and allows for better drainage, but mortar provides a more stable and permanent surface.

Filling the Joints: Use a trowel to fill the joints with the selected joint material. Make sure to fill the joints completely and remove any excess material.

Step 4: Finishing Touches

Sealing: After the joint material has dried, you can apply a sealer to the flagstone surface. This will protect the stones and the joint material from the elements and help to maintain the color of the stones.

Landscaping: Finally, you can add landscaping around the flagstone surface. Plants, shrubs, or gravel can add the finishing touches to your outdoor space.


How much does flagstone installation cost?

The cost of flagstone installation varies depending on the size of the area, the type of flagstone used, and whether you do it yourself or hire a professional. The mean cost per square foot exhibits variability within the range of $15 to $30.

Can I install flagstone over existing concrete?

Yes, it is possible to install flagstone over existing concrete. However, it is important to ensure that the concrete is in good condition and is properly prepared before starting the flagstone installation.

What is the best base material for flagstone installation?

The ideal base material for flagstone is a combination of crushed stone and stone dust. This mixture provides a stable and compactable base that allows for proper drainage.


Flagstone installation can be a DIY project if you have the right tools and follow the correct steps. With proper preparation, laying the stones, filling the joints, and adding finishing touches, you can create a beautiful and durable flagstone surface for your outdoor space. Thinking of a DIY flagstone installation? 🛠️ Before you dive in, consider the steps: preparing the ground, laying stones, filling joints, and finishing touches. It can be a challenge! Want a flawless finish without the fuss? Let GTA Sunrise handle it for you. 🌅🪨 Contact us today!