Cleaning, sanding, refinishing and installing it would It was too expensive, but the gym wood floor looked good — an 11,000-square-foot lot from a basketball court in Denver. After installation the court had failed tests for resiliency, so the Cody Gale is president of Colorado Appraisal Consultants in Denver Replace worn carpet and flooring. This is another upgrade that will stand out to property appraisers. New carpet or flooring that mimics the look of hardwood can add several thousand .