I put rubber backed rugs on the hardwood to stop the sliding (to save my floors, not the dogs). The tile kitchen they pinball through on the way outside/to food/out of kennels). If their hips are good the sliding floors won't hurt them, and will build environmental confidence. I (quietly) laugh when people say their dog is scared of slick floors... if my dogs were, they'd not survive in my house lol. there is no carpeting.
Hunter, USA trial helper, Charleston Working Dog Club Training Helper
Beschützer des Jägers v. Sportwaffen, HOT, IPO1, AD, CGC
Katya v. Hügelblick, HOT, IPO2, CGC
SG Aska v. Ketscher Wald, 2 x SchH3, Kkl 1