The Simpson LSCSS Adjustable Stair-Stringer Connector is an 18-gauge stainless-steel hardware connector engineered to create a strong, concealed connection between a stair stringer and the carrying header or rim joist. Designed by Simpson to be field slopeable to all common stair stringer pitches, it works with both solid and notched stringers, eliminating the need for additional framing and toe-nailing in residential and commercial stair framing applications where high or severe corrosion resistance is required.

Key Features

• Replaces additional framing and toe-nailing - reduces material and labor costs by removing the need for extra structural members at the stringer-to-header connection
• Field slopeable to all common stair stringer pitches - adjusts on the job site to match virtually any stair angle, giving installers flexibility without special-order parts
• Compatible with solid or notched stringers - works across the most common stair framing methods, making it a practical choice for a wide range of projects
• Suitable for most installations on nominal 2x10 or 2x12 header/rim board - fits standard framing lumber dimensions used in typical stair construction
• May be installed flush with the top of the carrying member or lower on the face - allows positioning flexibility so the connector adapts to different framing conditions on site
• Interchangeable for left or right applications - a single connector handles either side of a stair run, so there is no need to stock separate left-hand and right-hand versions
• Made from 18-gauge stainless steel - provides high/severe corrosion resistance, making it well suited for exterior decks, coastal environments, and other demanding exposure conditions

Why This Product

• One connector, maximum versatility - because the LSCSS is field slopeable and interchangeable for left or right use, a single connector type covers a wide range of stair framing scenarios, simplifying procurement and reducing the risk of ordering the wrong part
• Concealed connection for a cleaner finish - the connector creates a hidden structural link between the stringer and the carrying header, resulting in a neater appearance without sacrificing connection strength
• Built for corrosive environments - stainless-steel construction delivers high/severe corrosion resistance, making this connector the appropriate choice where pressure-treated lumber, moisture, or salt air would degrade a standard galvanized connector over time
• Streamlines installation by replacing costly framing - eliminating extra blocking, ledgers, and toe-nailing at the stringer connection saves time on the job site and reduces overall framing material costs

Specifications

• Model Number: LSCSS
• Material: Stainless Steel
• Finish: Stainless Steel
• Gauge: 18
• Country of Origin: United States
• Installation Fasteners: Install with (17) 0.148 in. x 1-1/2 in. stainless-steel ring-shank nails or (17) #9 x 1-1/2 in. Strong-Drive SD stainless-steel screws (sold separately)

Frequently Asked Questions

What type of stringers is the LSCSS compatible with?

The LSCSS adjustable stair-stringer connector is suitable for either solid or notched stringers, making it compatible with most common stair framing configurations.

Can the LSCSS be used for both left- and right-hand stringer applications?

Yes. The LSCSS is interchangeable for left or right applications, eliminating the need to purchase separate left-hand and right-hand connectors.

What header or rim board sizes does the LSCSS work with?

The LSCSS is suitable for most installations on nominal 2x10 or 2x12 header/rim board, and it may be installed flush with the top of the carrying member or lower on the face.

Why is stainless steel important for this connector, and what fasteners are required?

The stainless-steel construction provides high/severe corrosion resistance, making it appropriate for demanding exterior or corrosive environments. Because of this, stainless-steel fasteners are required - specifically (17) 0.148 in. x 1-1/2 in. stainless-steel ring-shank nails or (17) #9 x 1-1/2 in. Strong-Drive SD stainless-steel screws.