Our bedroom carpet needs replacing and I am looking at Allure planks. We plan on cutting out the old carpet as far as we can around the bed, then laying the Allure. Home Depot says let it ?float? but I thought of glueing it down. We can?t get under the bed far enough to have floating edges for the flooring. I welcome opinions and suggestions! Thanks! Haven?t looked yet but should I expect plywood particle board under the carpet?