Discover the Best Techniques for Measuring & Cutting LED Strips

LED strip lights are one of the most versatile and creative ways to brighten up a room, add ambiance, or highlight architectural details. But to make them fit your space perfectly, you’ll often need to measure and cut them correctly. If you’re new to DIY lighting, this guide will walk you through the basics of cutting LED strips safely and accurately.

Step 1: Measure Your Space

Before grabbing the scissors, start by measuring the area where you plan to install your LED strip lights. Use a tape measure and note the length carefully. It’s a good idea to add a little extra allowance so you don’t end up short.

Step 2: Locate the Cut Marks

LED strips are designed with designated cut points, usually marked by a small line or scissor icon. These are the only spots where you should cut. Cutting outside these marks can damage the circuit and prevent the strip from working.

Step 3: Make a Clean Cut

Once you’ve located the cut mark, use a sharp pair of scissors to make a clean, straight cut. Avoid bending or crushing the strip, as this may damage the internal wiring.

Step 4: Check the Polarity

If you plan to reconnect cut pieces, pay attention to the polarity. LED strips have positive (+) and negative (–) sides. Connecting them incorrectly can stop the strip from lighting up.

Safety Reminder

Working with LED strips is relatively safe but always be cautious. Double-check your cuts and connections, and if you’re unsure, don’t force it.

⚠️ Important: If you’re new to DIY projects, it’s always best to consult an expert. Incorrect cutting or installation may lead to wasted materials or safety issues.