Extra Support For Long Stair Stringers
If your stringers are more than 10’ long, we recommend installing a rigid beam at mid-span to add support to the structure. The strength of stair stringers is considerably weakened by the cuts made to create the stair surfaces, and stairs must be strong enough to withstand heavy foot traffic and very stressful conditions. Both visually and structurally, it is preferable to break long stair runs with intermediate landings. In some cases, however, you may need to use one long run.

A brace will dampen the shear stress that can compromise the integrity of the stringers in the center of the stairs. Most deck stairs are under-built and, as a result, feel bouncy and are at risk to collapse, especially after weathering can propagate cracks in the stringers. You also may consider doubling your stair stringers by nailing two 2x12s together like a beam in order to increase strength. Adding blocking between stringers also can strengthen the entire stair structure.
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.
Closed Stair Risers
Learn about the benefits of installing riser boards on your deck stairs.
How to Build Deck Steps and Stairs
Stairs can be one of the most challenging aspects of building a deck. Find out how to build deck steps and watch our step-by-step DIY video.
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.
Installing Deck Stair Railings
Step-by-step instructions for how to install deck stair railings. Learn about the code requirements and construction tips with images.
Attaching Rail Posts
Step-by-step instructions for installing rail posts to your deck frame.
More Helpful Resources
Explore Articles by Topic

Footings
Information related to installing frost footings for decks

Framing
Learn structural framing methods

Decking
Learn about wood and composite decking materials

Stairs
An in-depth look at the complex issue of how to build stairs

Railings
How to install guardrails and handrails to meet IRC code

Features
An overview on water drainage, benches, planters and lights

Design
The basics of deck design

Planning
Learn about permits and working with contractors

Porches & Patios
Build a covered deck to enjoy all seasons

Ledger
Proper attachment techniques

Care
Maintain your deck to maintain your investment

Materials
An overview on water drainage, benches, planters and lights
Closed Stair Risers
Learn about the benefits of installing riser boards on your deck stairs.
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.
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.
Reddit Railing Questions Answered
Deck railing is an essential component of any deck, providing both safety and style. However, with so many materials, designs, and installation factors to consider, questions often arise.
Cocktail Railing Considerations & Ideas
A cocktail rail is the ideal enhancement for a deck railing. Explore what to consider when introducing a drink rail to your deck.
How to Choose the Right Deck Railing
As one of the most visible elements of a deck, railings add support, safety and style. Get tips for choosing the right deck railing at Decks.com.
Explore Articles by Topic

Footings
Information related to installing frost footings for decks

Framing
Learn structural framing methods

Decking
Learn about wood and composite decking materials

Stairs
An in-depth look at the complex issue of how to build stairs

Railings
How to install guardrails and handrails to meet IRC code

Features
An overview on water drainage, benches, planters and lights

Design
The basics of deck design

Planning
Learn about permits and working with contractors

Porches & Patios
Build a covered deck to enjoy all seasons

Ledger
Proper attachment techniques

Care
Maintain your deck to maintain your investment

Materials
An overview on water drainage, benches, planters and lights