Okay, this is a tight spot, literally and figuratively! Let's break down the challenges and possible solutions for installing this strip lighting under a granite step with only 1" of clearance and 150' runs.

Challenges



Limited Space (1")

This is the biggest constraint. It restricts access for tools, maneuvering the fixtures, and making connections.

Weight of Granite

While you're right that the granite has to be lifted and set, the GC's concern about weight while the lighting is pre-installed is valid. It could make handling and precise placement trickier.

Length of Runs (150')

This means many connections will be needed along each run, adding complexity to the installation.

Fixture Lengths (4', 6', 8')

Choosing the right length is key to minimize cuts and waste, but also for manageability in that tight space.

Jumper Cables

These are often the most fiddly part of strip light installations, especially in confined areas.

Installation After Setting

Nearly impossible given the 1" gap, unless we are talking a "slide" method which has its own issues.

Possible Solutions (in order of most to least likely to work)


Pre-Installation (Your Suggestion - Refined)

This is still the best option, but with added precautions.



Minimize Handling



Temporary Support

Before the granite step is set, install temporary supports (e.g., shims, small wood blocks) along the run where the strip light will sit. This will take some of the stress off the strip light during granite setting and allow minor adjustment. The key is to maintain the 1" gap.

Edge Protection

Use strong tape (like Gorilla Tape or Duct Tape) along the exposed edge of the strip light, especially at the corners, to prevent damage during handling.

Strategic Joint Placement

Plan the fixture layout (4', 6', 8' sections) carefully to place joints (where the jumper cables connect) at more accessible points. Potentially offset these locations from run to run if possible.

Wire Management During Install

Carefully tape the jumper cables to the back of the fixture temporarily during the setting process. This will keep them from dangling and potentially getting damaged or caught. Once the step is set you will remove the tape to connect the sections.

Communication with GC

Emphasize the precision required during the granite setting. They need to be aware of the pre-installed lighting and exercise extra care. Perhaps offer to be on-site during the granite installation to provide guidance and support.

Test Before Setting

This is KEY! Test the ENTIRE run of strip lighting before the granite is set. This ensures all connections are good and avoids a huge problem later.2.

"Slide-In" Method (High Risk, Low Reward)

Only consider if pre-installation is absolutely impossible.

The Idea

Cut the granite along the bottom edge to create a slight angle. Slide the entire strip into the created gap.

Risks



Damage to Strip

The act of sliding it could easily damage the strip light, especially the LED components.

Difficult Connections

Making the jumper cable connections inside the confined space will be extremely difficult and frustrating.

Poor Alignment

Maintaining a straight, even run within the limited space would be a challenge.

Potential for Binding

If there's any slight variation in the gap, the strip could bind and be impossible to slide in fully.3.

Modified Granite (Highly Unlikely)

Requires major changes to the granite and is probably not feasible.



The Idea

Have the granite fabricated with a channel or groove on the underside to accommodate the strip light.

Why It's Unlikely



Cost

This adds significant cost to the granite fabrication.

Structural Integrity

Carving into the underside of the granite could weaken it.

Aesthetics

It might be difficult to make the channel/groove look good.

Lead Time

Requires re-fabrication.

Key Considerations for Bidding



Contingency

Factor in a contingency for potential damage to the strip lights during installation. This is especially important if using the slide-in method.

Material Choice

Are the strip lights flexible or rigid? Flexible strips will be easier to work with. Consider using high-quality strips with good protection against moisture (even if it's an indoor application).

Connection Method

Are the jumper cables plug-and-play, or do they require splicing/wiring? Plug-and-play will be much easier in this tight space.

Detailed Plan

Provide a very detailed installation plan in your bid, showing how you will handle the limited space, make connections, and protect the lighting during the process.

Collaboration with GC

Emphasize your willingness to work closely with the GC to ensure a successful installation. Clear communication and coordination are critical.

Cost

Balance the cost of the installation with the need for quality and durability. Don't cut corners just to win the bid if it compromises the outcome.

In your response to the GC, I recommend focusing on the pre-installation method with the safety precautions outlined above.* Explain the benefits of this approach (better quality, more reliable connections, less risk of damage) and emphasize your commitment to working collaboratively to ensure a smooth process. A confident, well-thought-out response will set you apart from other bidders. Flag for review