Loading

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.

Stringer Supports
PinterestSave


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.


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

Stair Tread Nosing

Learn how to install treads to overlap the riser boards.

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.

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

Composite vs Aluminum Railing

Composite and aluminum railings are great low maintenance alternatives to traditional wood. Learn the differences between these materials with Decks.com.

Deck Railing Parts

Handrails

Learn about the code requirements for installing a grippable handrail for your deck stairs.

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

Stair Stringer Length

Learn how to measure the height of your deck and use our Decks.com Stairs Calculator to determine your stair stringer lengths.

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
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

Best Aluminum Deck Railings: Reviews & Benefits

Aluminum deck railings are a great low maintenance option for any home. Compare different materials and find the best aluminum deck railing system for you.

Railing Codes

Deck Railing Codes

Learn about the building codes that regulate guardrails. How high do rails need to be? What are the rail infill requirements?

Get more helpful resources delivered right to your inbox

Explore Articles by Topic