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Step 8 · Attach Stringers to Floor and Landing

Position the cut stringers in their final location. Ensure they are plumb and properly aligned. Secure the top of the stringers to the upper landing framing and the bottom to the lower floor framing using appropriate structural fasteners such as lag screws or bolts. This step establishes the fundamental support for the stairs.

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Step 8 · Attach Stringers to Floor and Landing

Position the cut stringers in their final location. Ensure they are plumb and properly aligned. Secure the top of the stringers to the upper landing framing and the bottom to the lower floor framing using appropriate structural fasteners such as lag screws or bolts. This step establishes the fundamental support for the stairs.

Videos for this step

Install the StringersInstall StringersInstall and Level the Stairs

Tools and Materials

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How to Measure Alternating Tread Stairs

Step 8 of 10·3 hr left

Determine Total Rise
15 minutes2 items
Calculate Nominal Riser Height
10 minutes1 items
Determine Total Run
15 minutes1 items
Calculate Tread Depth and Nosing
20 minutes2 items
Mark Stringers for Treads and Risers
60 minutes5 items
Cut Stringers
75 minutes4 items
Cut Treads
45 minutes4 items
8
Attach Stringers to Floor and Landing
30 minutes4 items
9
Install Treads
90 minutes4 items
10
Install Handrails and Guardrails
60 minutes5 items
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