DIY Network

How to Build Simple Stairs

Stairs are the number-one way to get from one level of a building to another. Fortunately, they’re simple to install with these basic step-by-step instructions.

More in Remodeling

  • Time

    Day

  • Price Range

    $100 - $250

  • Difficulty

    Moderate to Hard

Highlights:

Step 1: Cut the Stringers and Risers

Cut the stringers. Cut three stair stringers from 2" x 12" lumber to accommodate a 3-1/2" stair height. Cut a notch in the bottom of the stringers to fit over a piece of 2" x 4" lumber, making sure to cut the notch in the same place on each stringer.

For each stair, cut 10" treads from 2" x 10" lumber and 7" risers from OSB sheets. Also, cut one piece of treated 2" x 4" lumber to 3' long.

Note: These stairs will rest on a bare concrete floor -- but untreated lumber will absorb moisture and rot from bare concrete. To combat this, install the treated 2" x 4" directly against the floor.

Step 2: Install the Treated 2x4s

Position one stringer against the wall and have a helper hold it in place. Fit the treated 2" x 4" into the notch and press it flush to the wall. Use a masonry bit to drill through the 2" x 4" and into the concrete floor, then attach the 2" x 4" to the floor with concrete nails.

Step 3: Attach the Stringers

Toenail the first stringer to the 2" x 4" and attach to the top stair support with metal brackets. Attach a second stringer in the same way at the other end of the 2" x 4". Attach the final stringer halfway between the other two.

Step 4: Add the Stairs

Install the 2" x 10" treads by nailing down through the treads into the stringers. Nail the OSB risers into the stringers (Image 1).

The stairs are ready to be finished as desired (Image 2).

All About…

More Topics

Was this project helpful?

Don't forget: Read comments and leave your own

Advertisement

Projects

COMMENT ON THIS PROJECT

    

Sign in

All fields are required.

E-mail Address:

Password:

Remember me on this computer

Signing in

Please enter your email address and we will send your password

E-mail Address

Your password has been sent and should arrive in your mailbox very soon.

Not a member?

Sign up with DIY Network to share tips with other do-it-yourselfers and comment and ask questions on projects.

It's free and easy.