Under Cabinet Lighting Pre-Wire Plan for a Kitchen Remodel

13. November 2026

Make the Lighting Plan Before the Walls and Backsplash Close

Before kitchen rough-in, mark every under-cabinet light run on the cabinet drawings, choose how each run will be powered and controlled, and agree on an accessible place for any LED driver. Then the electrician and cabinet installer can plan the cable exits, cabinet pass-throughs, switch locations, and future service access together. Waiting until the cabinets and tile are finished can leave a visible cord, a dark gap, or a driver trapped behind the new kitchen.

You do not need to design the household wiring yourself. You do need to decide where you want light, whether the system is a direct-wire fixture or a low-voltage light with a separate driver, and whether the wall control should switch or dim one or several groups. This guide turns those decisions into a brief you can hand to the people doing the work.

The Three Decisions That Become Harder to Change Later

Plan in the order the kitchen is built. The National Kitchen & Bath Association's kitchen guidance calls for useful task lighting at work surfaces and lighting from multiple, adjustable sources. For under-cabinet lights, that starts with the work zones rather than a single line drawn beneath every upper cabinet.

Before this stage ends	Settle this	Why it matters later
Walls are closed	Which cabinet sections get light; where power and any low-voltage runs begin and end; switch or dimmer locations; where a driver can be reached.	Moving a feed or adding a route after drywall can mean reopening finished surfaces.
Cabinets are fabricated or installed	Fixture depth, front or rear position, cable pass-throughs, hidden channels, and how separate cabinets connect without a visible bridge.	A shelf, drawer, face frame, or appliance housing can block the route you expected to use.
Backsplash is installed	Final cable exits, outlet locations, light direction, and a temporary light test against the actual counter and backsplash materials.	Tile and stone make last-minute relocation harder, and reflective surfaces can reveal glare that a drawing does not show.

If the backsplash is already finished, the available routes and trade-offs change. This page is for a remodel while the power and cable paths can still be planned.

Draw Light Runs Around Tasks, Not Just Cabinet Lengths

On a cabinet elevation, mark the counter where you chop, wash, read recipes, make coffee, or prepare food beside the range. Draw one light run beneath each cabinet section that serves those tasks. Mark the window, hood, open shelf, corner, or tall appliance that breaks the upper cabinets. A break in the cabinets does not mean the next run must use a separate switch, but it does need a planned power path.

Number the runs. “Prep left of range,” “sink right of window,” and “coffee nook” are clearer than “all uppers.”
Mark the preferred light position. A line too close to the backsplash may leave your hands in shadow; a line too close to the front may be visible from across the room. Test the proposed position with a sample fixture when possible.
Mark every interruption. Record the route around the hood, window, corner, or cabinet gap instead of assuming a strip can simply cross open space.
Show what should turn on together. The control group can include several physically separate runs; a night or coffee zone may deserve its own control.

The lighting plan and the cable plan are related but different. For example, a window may interrupt the visible light line while concealed wiring still reaches the cabinet on the other side. The exact route and cable type belong in the installer-approved plan.

Choose the Power Architecture Before Asking for Wire

A direct-wire LED bar connects to household power through its approved fixture or connection arrangement. A low-voltage bar or strip needs a driver that converts household power to the light's specified voltage. A plug-in kit needs a suitable, accessible receptacle and a route for its adapter cord. These options call for different rough-in decisions; “leave a wire somewhere under the cabinet” is not a complete specification.

Lighting route	Tell the electrician and cabinet installer	Check before committing
Direct-wire fixture	Exact fixture and approved power-entry position for each run; desired wall switch or dimmer; whether fixtures can be linked using the manufacturer's parts.	Cabinet span, fixture depth, electrical access, and compatibility with the selected control.
Driver-fed 12V or 24V light	Chosen light and voltage; proposed driver location; each low-voltage route from driver to light; control group and dimming method.	Driver capacity, permitted run length, cable path, ventilation, and access for replacement. The light itself must not connect directly to household voltage.
Plug-in system	Proposed receptacle location and cord route; whether the outlet should be controlled; space for the adapter without blocking storage.	Plug clearance, access, local electrical requirements, and whether the system's own control behaves as expected when power returns.

For a low-voltage example, Lumaz's 24V High Density COB LED Strip Light offers a 2-pin wire option and cut-to-fit lengths. It is the light component, not a pre-wired system: its 24V supply is separate, and the installer must match the driver, control, load, and route. If you prefer a complete product path, compare options in the Under Cabinet Lighting collection before the rough-in is finalized.

For outlet types, placement ideas, plug clearance, and appliance use, see the dedicated under-cabinet outlets guide. Here, the outlet matters only as one possible way to power the lighting system.

Plan the Wall Control and Driver Access as One Decision

Tell the installer how the kitchen should work, not only what devices you want. Do you want all under-cabinet runs on at once while cooking? A separate coffee or night zone? Dimming from a wall plate by the entrance? A control that can also be reached from the other end of the kitchen? These answers affect the power and control layout before cabinets hide the routes.

One switch, several runs: mark each run on the drawing and ask how they will be supplied and controlled together. Do not assume one continuous illuminated strip must cross a hood or window.
Wall dimming: choose the exact fixture or driver and compatible dimmer as a system. A strip labeled “dimmable” does not establish compatibility with an arbitrary wall dimmer. ENERGY STAR's fixture guidance likewise advises checking LED and dimmer compatibility.
Driver access: place a separate driver where it can be inspected and replaced without cutting into finished cabinetry or tile. Its approved enclosure, location, and ventilation depend on the selected product and local requirements.
Future changes: if another zone or different control may be added, discuss a documented, code-compliant pathway or provision while the wall is open. Do not install an unspecified spare cable and assume it will suit any future light.

Manufacturer instructions can impose real limits on driver-to-light distance and wiring. For example, Lutron's linear-light instructions specify driver locations and model-dependent maximum wire lengths, and recommend checking the light at the intended location before final mounting. Your chosen system's instructions, not a generic online wire size, must govern the final design.

A Simple Sketch You Can Hand to the Project Team

Use one cabinet elevation and a short schedule like this. The example is illustrative; your installer fills in the actual product, power, and approved wiring details.

Run on drawing	What the light must do	Control group	Questions to resolve before rough-in
A · Main prep counter	Even light over chopping and meal preparation.	Main kitchen task-light switch or dimmer.	Fixture length and front-to-back position; feed or driver location; access after cabinets are installed.
B · Across the window	Continue useful light on the second cabinet section without lighting the open gap.	Same group as A, if desired.	Where the concealed route crosses the break; whether a second feed or driver is needed.
C · Coffee nook	Small task area that may be used separately in the morning or evening.	Separate control if the household wants it.	Whether it needs its own switch, power route, and future service point.

Attach the fixture or system specifications, mark the switch and any driver on the same drawing, and ask the electrician and cabinet installer to agree on the route together. Keep an updated copy and photographs of the rough-in for future service. For a kitchen with corners, windows, or missing upper cabinets, the L-shaped kitchen lighting plan shows how to separate visible light runs from power groups.

Before the Finish Work Hides the Plan

Before drywall: confirm the number of lighting runs, desired control groups, approved power and low-voltage paths, and where any driver will remain reachable.
Before cabinets are fixed: compare the drawing with actual cabinet dimensions, shelves, drawers, hood, window trim, and appliance locations; agree on every concealed exit and pass-through.
Before backsplash: temporarily view the proposed light on the work surface and backsplash if possible, then verify that outlets, visible cables, fixture positions, and access panels match the finished design.
Before handover: test each switch and dimmer with the installed lights, identify the driver and connection locations on the saved drawing, and keep the product instructions.

Electrical connections, box placement, cable selection, permits, and inspection are for the qualified installer to determine under local requirements. The homeowner's job at this stage is to make the lighting outcome and access requirements unmistakable. Once the layout is agreed, the separate hardwired installation guide explains the project sequence.

Pre-Wire Planning Questions

Can I pre-wire now and choose the under-cabinet lights later?

You can reserve a planned power route, but the final cable, driver, voltage, control, and connection locations depend on the exact system. Choose at least the lighting architecture and control behavior with your electrician before rough-in. Confirm fixture dimensions and manufacturer instructions before cabinets and tile hide the route.

Where should an LED driver go in a remodel?

Choose an approved, reachable location that suits the driver's instructions and the cable distance to each light run. A cabinet interior or another serviceable area may work; a permanently sealed void behind tile is a poor maintenance choice. Let the installer confirm enclosure, ventilation, and local rules.

Do separate cabinet sections need separate switches?

No. Separate physical runs can share a control when the complete fixture, driver, load, and wiring plan supports it. Mark each run and the intended control group before rough-in so the installer can design the connection without a visible light bridge across a window or hood.

Should the lighting outlet be behind the backsplash?

It depends on whether you chose a plug-in system and how its adapter and cord will remain accessible. An outlet hidden in an unusable or sealed location creates a service problem. The outlet guide compares actual styles and locations; the electrician must confirm code-compliant placement.