It is not recommended to install or stretch a carpet without a power stretcher. Skipping essential tools like a power stretcher and a knee kicker will likely result in an improper installation, leaving you with wrinkles, creases, and an unappealing final look. While a knee kicker can provide some limited stretching for thinner carpets, it is not a proper substitute. Attempting to stretch a carpet by hand or with homemade tools can also shorten its lifespan. For the best results, you should buy or rent a stretcher. If you do not want to use a stretcher, it is better to hire a professional for the installation.

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.

The type of flooring you choose for your bedroom comes down to personal preference. Many people prefer carpet over hard-surface flooring types (such as hardwood, tile, or stone) in their bedrooms because it’s warmer and cozier. Carpeting also helps muffle sound, which may benefit those who have trouble sleeping.

On the other hand, some folks prefer the look of hardwood over carpet. People with allergies might also opt for non-carpeted flooring since carpet fibers can attract dust, dander, and other allergens.

Avoid placing carpet in the bathroom or the kitchen. After all, moisture is no friend to carpeting. Beyond that, it’s down to personal preference. Some people dislike when a garage or basement features carpet, but others enjoy it.