Straighten a paperclip and push it through the carpet and padding until it hits the subfloor.

"): Requires a very thick, heavy-duty mat to prevent cracking. 2. Choose the Material Chair Mats Buying Guide - K-Log

To determine the necessary mat thickness, you must measure your carpet's pile.

Use mats with a smooth back . Spiked mats will damage hard floor finishes. The "Paperclip Test" for Carpet

To choose the right chair mat, you must first identify your floor type, as using the wrong mat can lead to floor damage or a cracked mat within weeks. 1. Identify Your Flooring

Mark the point flush with the carpet surface and measure that length. Requires a standard thin mat. Medium Pile (Up to "): Needs a thicker mat with slightly longer spikes. High Pile (Over

The backing of the mat is determined by the floor surface to ensure stability and protection.