I was struggling to choose between these or the interlocking tiles for a small home gym. I needed tiles so that we could easily access plumbing under the floor. I was advised to buy the interlocking ones, to avoid using adhesive and to avoid tiny gaps between the tiles; however my carpet fitter wasn’t keen on the interlocking tiles, as they’re more tricky to fit. We went with these and I’m really pleased with them, we didn’t use adhesive, as the fitter said they’re secure enough as they are. It’s a small area 8ft x 12ft, they went down easily, gaps not noticeable, dampens the noise of the treadmill and as an added bonus, they look great!