Loading

Stair Stringer Attachment

How you attach the stair stringers to the top of the deck and to any landings will be critical. You should reinforce the rim behind the stairs to provide a solid base for attachment. Use positive connections to install stair stringers using stair stringer connectors to the front face of the rim to provide adequate support.

If your first tread steps down from the deck, you must extend the rim joist to create a solid surface below the deck rim to attach it to. You should attach 2x6 or 2x8 support framing under the rim flush to the bottom of the stringer. 

The stairs will hang here.
PinterestSave
The stairs will hang here.

Install a piece of blocking below the rim joist to extend the attachment surface for your stairs stringers.

Use a level to mark the top step.
PinterestSave
Use a level to mark the top step.

Measure down from the top of the deck and mark the top of your stair stringers with a level. For example, if each stair will be 6 3/8" finished height, we will measure down 7 3/8" to compensate for the missing stair tread.

Mark the locations for the stringers.
PinterestSave
Mark the locations for the stringers.

Mark the location for each stair stringer. Most wood stairs use 16" on center. Follow the manufacturer's guidelines for composite decking. Most composite decking materials require 12" or even 10" on center spacing.

A positive stringer connection.
PinterestSave
A positive stringer connection.

Bend your stair stringer connectors to the correct angle. Hold the connector under the stringer and raise the stringer to the proper height. Then, mark the height of the connector. Repeat for each stringer attachment. Use 10d - 1.5" hot-dipped galvanized nails.

Make sure the top of the stringers are level.
PinterestSave
Make sure the top of the stringers are level.

Nail the stair stringer connectors into place. Then, nail the 2x12 stair stringers to the connector side flange and bottom.


Popular Stairs Articles
Staircases

How to Build Box Steps for Your Deck

Learn how to build a set of box platforms to act as stairs for a low deck. You don't need to cut stair stringers.

Staircases

Building an ADA Deck Ramp

Learn how to build an ADA-accessible wheelchair ramp onto your deck to meet building codes. Ramps must have a 1:12 slope.

Staircases

Anchoring Deck Stairs

Learn how to anchor your deck stairs to a concrete landing pad or footings. Follow our step-by-step instructions with photos.

Next Step: Railings Articles
Glass Railing

Glass Deck Railing Ideas and DIY Installation Tips

All glass panels used for deck railings must be safety-tempered and shatter-resistant. Learn how to install glass railing panels and get ideas for your deck.

Deck Railing Types

How to Install Composite Deck & Porch Railings

Composite deck and porch railings offer a low-maintenance option for railings. Learn how to install composite railing and get ideas for your deck at Decks.com.

Railing Codes

Deck Railing Height Requirements

Understanding deck railing height is important for meeting code requirements. Learn how high you should build your deck railing.

Get more helpful resources delivered right to your inbox

Explore Articles by Topic

Popular Stairs Articles
Staircases

Closed Stair Risers

Learn about the benefits of installing riser boards on your deck stairs.

Staircases

Building an ADA Deck Ramp

Learn how to build an ADA-accessible wheelchair ramp onto your deck to meet building codes. Ramps must have a 1:12 slope.

Staircases

Planning to Land Stairs on a Future Patio

Learn how to determine the location of your stair landing and how to install a concrete slab using forms. Follow these step-by-step DIY instructions.

Next Step: Railings Articles
Deck Railing Types

5 Cable Railing Ideas to Inspire Your Deck or Porch Railing

Cable railing adds a modern touch for those looking to add a unique twist to their deck or porch. These top ideas offer inspiration and guidance on cable railing for your deck.

Deck Railing Types

Vinyl Deck Railing Reviews, Comparisons, & Costs

Compare Vinyl Deck Railings to wood, aluminum, and composite. Find reviews and cost information to help choose the best deck railing for your home at Decks.com.

Deck Railing Types

How to Build a Deck Privacy Screen

In some deck design situations, you may feel that it is important to block certain views to increase privacy. This can usually be achieved by building a privacy wall or fence.

Get more helpful resources delivered right to your inbox

Explore Articles by Topic