Essential Steps to Build Deck Stairs Like a Pro

If you're interested in building deck stairs, you're likely drawn to the charm of this outdoor feature. During the summer, beautifully designed decks enhance any outdoor space. If you've decided to tackle the construction yourself, it's crucial to plan meticulously, have a solid understanding of measurements, and possess confident DIY skills.

While many components contribute to building a deck, mastering the construction of the stairs is crucial. These stairs will provide access to the garden below and should harmonize with your deck's overall aesthetic.

We consulted experts to share their insights on constructing deck stairs that not only adhere to safety standards but also look fantastic.

Steps for Building Deck Stairs

Before diving into the construction, here's what you'll need to create decking steps. Using a pre-made kit can simplify the process, but you can also choose to start from scratch.

Required Materials:

• Timber: 2 inches x 6 inches and 2 inches x 12 inches
• Deck screws
• L-brackets
• Stair stringers
• Stair treads
• Chalk line
• Circular saw
• Drill
• Handsaw
• Spirit level
• Safety goggles

1. Measure for the Deck Stairs

“Building stairs requires careful calculations and expertise,” says Steve Vanadia, president of Vanco Construction.

Start by determining where your stairs will end, which is the landing spot.

Place a board from the top of your deck to the ground to begin measuring the height of your stairs.

“To find a comfortable riser height, divide the total height from the top to the bottom by seven,” advises Steve.

“Once that's established, use a rafter square to mark the stringer, allowing for an 11-inch tread between each step,” he adds. Alternatively, consider using an online tool to help with these calculations.

2. Assemble the Deck Stairs

Begin assembling your deck stairs by fastening the stair stringers to the bottom of the deck frame. Use L-brackets and long deck screws to secure the stringers in place.

Next, cut the risers to fit the stringers. Position a riser against the stringer edges and mark where it needs to be trimmed.

Utilize a circular saw to cut along the marked lines until you have the riser fully trimmed. Repeat this process for all risers, then secure them in place using 3-inch deck screws. Finally, cut the treads to size and fasten them onto the staircase.

3. Install a Handrail

After completing your stairs, consider adding a handrail. James Bruteon, CEO of a sustainable building materials company, recommends checking local codes and safety regulations before purchasing a pre-made handrail.