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If you have a concrete subfloor, you must secure the carpet padding with adhesive or glue. However, if you have a wooden subfloor, use staples instead. Removing a glued-down carpet can be difficult and time-consuming, so it’s best to avoid glue when possible.

Carpet tiles are less expensive than traditional carpet. The average cost of carpet installation is $1,800, or $3 to $11 per square foot. In comparison, carpet tiles cost $2.50 to $11 apiece and can often be bought in bulk cartons. Since you can more easily DIY carpet tiles, you may be able to save on installation costs, too.

New carpet installation offers warmth, comfort, and aesthetic appeal. It can improve indoor air quality by trapping dust particles and provides a sound-dampening effect, which is beneficial for creating quiet environments.

In most cases, you do not need to put padding or underlayment under carpet tiles. Unlike traditional carpet, which requires a separate pad, carpet tiles are designed to be installed directly onto a firm subfloor like plywood, concrete, or tile. Many carpet tiles come with a built-in underlay and attach with peel-and-stick adhesive, double-sided carpet tape, or glue. For a more comfortable, cushioned feel, especially in residential settings, you can opt for padded carpet tiles that have a thicker underlay attached. While it's generally not recommended to install a separate pad, a compact underlayment might be used in some situations, though this typically requires professional installation. An acoustic underlay may also be considered in commercial spaces or multi-level homes where noise reduction is a priority.