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Construct Staircase with Additional Stringers

7:36
30:17
124.9K views

At 7:36 in

Start-to-Finish 3 day DIY Floating deck - BIG REVEAL!

What happens here

The stairs are constructed by attaching MoistureShield composite boards as treads to the stair stringers. Unlike traditional wood steps, this setup requires additional stair stringers (a total of five are used instead of the previous three) to prevent any 'spongy' feel underfoot due to the flexibility of the composite material. The treads are secured by screwing them in from the back side, avoiding the need for special joist hangers and ensuring a strong, stable staircase.

Goal: Build a stable composite staircase with sufficient support.

Tools and materials

  • Circular Saw Milwaukee — Cutting stair treads to length
  • Deck Screws — Fastening treads to stringers from the back
  • Stair Stringers — The structural supports for the stair treads

What they say

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to save time frankie and i divide and conquer i focus on getting the rest of the deck screwed off that's what she said and he works on the steps so let's just dive into the steps and see how frankie is working hey frankie can i ask you a question some of the guys may be asking about the stairs yeah um i noticed you did not use joyce hangers on the stairs you you uh screwed it in on the back side yeah is that because you think that that's stronger or why did you do that and not use trace hangers hangers you can't you got to get special joist hangers and we didn't have them because of the angle okay the joist hangers come straight out okay from the bottom and i i guess i've always i've never have i've always used i've always screwed them back now i got a six inch screw in every one so it's there's three inches of screw inside going inside here it's three inches and another three inches okay so that's what you use a quarter inch by six and three in each stair trigger yep okay [Music] when this same deck was wood these stairs were supported by just three stair stringers but because we're switching it over to moisture shield we've got to add two more stair stringers to make sure that we don't get a spongy feel below our feet stairs are done raced up propped up ready to go posts are next

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