How to Build Wooden Deck Stairs

How to Build Wooden Deck Stairs

Your home’s deck offers you direct access to the surrounding natural environment. Your deck is a significant addition to your house and property, regardless of whether you use it for barbecue, getting together with friends, or simply taking some time for yourself to rest.

Accessing your deck in a way that is both secure and expedient is of equal importance to the deck itself. Find out how to construct wooden deck stairs quickly and easily by making use of pre-built stair supplies that may be purchased at your neighbourhood home centre, in addition to standard tools that you may already own.

Basics of Building Wooden Deck Stairs

Deck stairs and the components that go along with them, including railings and balusters, have to be constructed in accordance with the local building code for your wooden deck. Both the risers, the vertical part of the stair that you stand on, and the treads, the horizontal section of the stair that you step on, are required to meet specific requirements. The maximum riser height is typically 7-3/4 inches (10 inches, minimum). All of this, including the balusters and railings of the stairs, is governed by code to ensure the safety of anybody who uses the stairs.

Utilising pre-built stair materials for some of the most important components of the staircase that are required to meet code requirements is the simplest and, in many cases, the most effective alternative to building the stairs from scratch. The stair stringer is an example of a particularly useful pre-built component.

Stair Stringers

The notched boards that create the two sides and the centre of the stairs and on which the treads rest are referred to as the stringers of the stairs. Depending on your requirements, the majority of home centres have stair stringers of various sizes, ranging from two to eight steps.

You won’t have to be concerned about complying with the code because the stringer already has a rise of 6-3/4 inches and a tread depth of 10 inches built into it. remove stains from white clothes with very easily and it show result of your clothes very instant and brightfull. Simply make sure to purchase one stringer for each side and an additional one for the middle. Because this will be used outside, you will need wood that has been pressure-treated and rated for ground contact.

Stair Treads

Steps, also known as treads, are the horizontal parts of the stairs that are used for walking. A tread is created by affixing two boards measuring two by six close to one another. Because the actual width of a board that has a nominal width of 6 inches is only 5-1/2 inches, it is an excellent choice for the stringer that has a depth of 10 inches and an overhang of 1 inch.

What You’ll Need

Equipment / Tools

  • Circular saw
  • Tape measure
  • Pencil
  • Cordless drill
  • Hammer
  • Speed Square
  • Plumb bob or a laser level
  • Scrap piece of two-by-four


  • 3 stair stringers
  • 3 galvanised adjustable stringer connectors
  • Six-by-six pressure-treated lumber
  • Two-by-four pressure-treated lumber
  • 10d galvanised nails, 1-1/2-inch
  • Copper-based wood preservative


Measure the Correct Stringer Length
Take your measurements beginning at the deck’s rim board and ending at the ground. In most cases, a slope of forty degrees is considered appropriate for stairs. Use the Speed Square, which should be propped up against the scrap piece of two-by-four, in conjunction with the plumb bob or laser level, in order to measure slope. Make a mark on the ground at the location where the stairs will terminate.

If any of the stair stringers that are currently for sale are a perfect match for the requirements, you should buy that set. In that case, you should purchase the size that is one longer. Stair stringers that are too long can be shortened with a saw.

Mark the Stringer Positions on the Rim Board
Take a measurement and make a mark on the deck rim board at the location that will be used to attach the stair stringers. Your measurement should be 36 inches across. Put a third mark in the centre of the paper at the 18-inch point.

Attach the Stringer Connectors
Join the stringer connectors to the three marks you established earlier in the process. On the centre will be where the middle connector is attached. Because of this, the whole width of the structure will be 36 inches when the two side connectors finally reach the markers on the sides. Attach with nails measuring 16d.

Attach the Plate to the Footer
Reduce the length of the two-by-four to exactly 36 inches. Attaching this as a plate to the base (also known as the footer) will allow it to receive the stringers’ bottom ends. The material of the footer will determine the method that will be used to attach the plate to the footer. Use screw anchors with a heavy-duty rating if the footer is made of wood.

Attach the Stringers
Put the stringers in place by connecting them to the three connectors. In order to confirm the slope of the stringers to the connectors, bend them upward.

Attach the Stringers to the Plate
Use the four framing angles to secure the bottoms of the stringers to the plate.

The majority of construction codes stipulate that there must be no more than a 1/8-inch difference between any two steps’ rise or run measurements. Be sure to check the rise of the top and bottom stairs to ensure that they are within 1/8 inch of the vertical measurements of the intermediate steps. The treads are accounted for in this measurement. Before the assembly and attachment process can be finished, it’s possible that some cutting will be required at this stage.

Cut the Stair Treads
Reduce the length of each stair tread to 36 inches. Remove two planks from each tread.

Attach the Back Stair Tread
Attach the stair treads to the stair stringers using nails or screws. First, press the backboard into the notch on the other side, and then attach it.

Attach the Front Stair Tread
It is recommended that you leave a gap of half an inch between the back and front stair treads. After that, fasten the front stair tread in place. This results in what is known as a nosing, which is a small overhang.


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