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

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

Use mats with grippers or cleats on the bottom to anchor the mat in place. Use mats with a smooth back

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