General measurement planning only; verify wiring, drivers, transformers, code, mounting, cabinet drilling, heat, and product instructions.
Use this lighting placement sequence to move from the main room layer to task, accent, and clearance checks before choosing products.
Compare nearby lighting tools: chandelier sizeceiling fan size and downrodceiling medallion sizebathroom vanity light heightfloor lamp sizeflush mount ceiling light sizerecessed lighting spacing
For nearby kitchen and cabinet planning, see Recessed Lighting Spacing Calculator, Cabinet Hardware Placement Calculator, Kitchen Sink Size Calculator, Dishwasher Size Calculator, Microwave Size Calculator, and Refrigerator Size Calculator.
Measurement planning note: verify dimensions, clearances, product specifications, manufacturer instructions, local codes, and qualified guidance before buying or installing. Measurement planning only.
Under Cabinet Lighting Calculator Disclaimer is a practical measurement page for checking the dimensions that usually cause mistakes before a purchase or installation conversation. Start by measuring the finished space, then compare the result with the actual product drawing rather than relying on a category name, photo, or diagonal size. Write down the smallest usable width, height, depth, clearance, and access path because those tight points usually control the final decision.
Treat the calculator output as a planning range, not a promise that a specific product will fit. If the result is close to a boundary, choose the more conservative option or remeasure the area after moving furniture and opening nearby doors. For projects that involve drilling, wiring, cutting, load capacity, moisture, structural support, rental rules, or local code, use qualified guidance and current manufacturer instructions before making permanent changes.
Save the model number, dimension sheet, return window, and the measurement notes that led to your choice. Recheck delivery access, product weight, hardware, accessories, and replacement parts separately from the main size calculation. A good final choice should still work when people are using the room normally, not only when every object is perfectly aligned for measuring.
Under Cabinet Lighting Calculator Disclaimer should be checked as a lighting layout decision, not only as a fixture count. The best spacing depends on counter depth, beam spread, cabinet lip position, glare, and the work area below the cabinet.
| Measurement | Typical note | Planning use |
|---|---|---|
| Cabinet run length | Measure each uninterrupted run separately. | Sets puck count or strip sections. |
| Counter depth | Common counters are near 24 inches deep. | Helps choose front, middle, or rear mounting. |
| Fixture spacing | Even spacing usually looks better than crowding one end. | Controls center-to-center layout and end margins. |
| Driver and switch location | Product kits vary in wiring and connector limits. | Prevents buying a kit that cannot reach around corners or breaks. |
A 72 inch straight cabinet run could use four puck lights at roughly 18 inch centers, leaving practical end margins, or one continuous LED strip trimmed according to the product cut interval. A corner kitchen should be split into two measured runs so a connector, dark pocket, or cabinet break does not distort the spacing.
Front mounting often improves task light on the counter, while rear mounting can highlight backsplash texture. Test glare and hand shadows before drilling.
No. It organizes spacing and length measurements only. Verify drivers, dimmers, voltage, heat clearance, mounting, and electrical work with instructions or qualified help.
Measure each leg of the corner separately, then check whether the kit allows connectors, bends, or overlapping light near the inside corner.
For broader room planning, compare the recessed lighting spacing calculator, cabinet hardware placement calculator, and kitchen sink size calculator.