How to Build Outdoor Stairs

Building outdoor stairs can be a challenging task, but with the right tools and proper guidance, it can be done by anyone. Whether you want to add stairs to your deck or want a path leading to your garden, this guide will provide you with step-by-step instructions on how to build outdoor stairs. Before starting, you will need to gather the necessary materials, including lumber, screws, and a saw.
How to Build Outdoor Stairs

Step 1: Measure and Plan

The first step in building outdoor stairs is to measure the distance from the ground to the top of where the stairs will lead. This will help you determine the number of steps required. You will also need to decide on the width of each step and the overall width of the staircase.

Step 2: Prepare the Area

Before starting the construction, you will need to prepare the area by clearing it of any debris and leveling the ground. This will ensure that your stairs are stable and safe.

Step 3: Cut the Stringers

The stringers are the structural supports for the steps. You will need to cut them according to your measurements and the angle of the stairs. It is important to take accurate measurements and make precise cuts to ensure that the stairs are level and safe.

Step 4: Attach the Stringers

Next, you will need to attach the stringers to the deck or landing. Make sure that they are securely fastened and level.

Step 5: Add the Steps

Once the stringers are in place, you can add the steps. Measure and cut each step according to your specifications, and attach them securely to the stringers.

Step 6: Finish the Stairs

After all the steps are in place, you can finish the stairs by sanding and painting or staining them. This will protect the wood from weather damage and make them look attractive.

Pros and Cons of Building Outdoor Stairs

Building outdoor stairs can be a great addition to your home, but it also has its pros and cons. Some of the advantages of building outdoor stairs include:

  • Increased accessibility
  • Enhanced curb appeal
  • Improved property value

However, there are also some disadvantages to building outdoor stairs, such as:

  • Costs of materials and labor
  • Maintenance requirements
  • Potential safety hazards if not installed correctly


Building outdoor stairs can be a challenging but rewarding project. By following the steps outlined in this guide, you can create a safe and attractive staircase that adds value to your home. Remember to take accurate measurements, use quality materials, and follow all safety guidelines to ensure that your stairs are stable and durable.


Q: Can I use any type of wood to build outdoor stairs?

A: It is important to use a durable and weather-resistant wood, such as pressure-treated lumber or cedar, for outdoor stairs.

Q: Do I need a permit to build outdoor stairs?

A: Depending on your location and the size of the stairs, you may need to obtain a permit from your local building department. Check with your local authorities before starting the project.

Q: How do I maintain my outdoor stairs?

A: Regular maintenance, such as cleaning and sealing, can help prolong the life of your outdoor stairs. It is also important to check for any signs of damage or wear and repair them promptly.

Q: Can I build outdoor stairs myself or do I need to hire a professional?

A: While building outdoor stairs can be done by anyone with the right tools and guidance, it may be best to hire a professional if you have limited experience or are unsure about the process.