When laying carpet pad on a wood subfloor, it's essential to ensure a smooth and stable foundation for your carpet to maximize comfort and durability. From my personal experience, one key step is thoroughly cleaning the subfloor before installation. Dirt, dust, or protruding nails can cause unevenness or damage the carpet over time. Choosing the right type of carpet padding is equally important. For wooden subfloors, cushioned foam pads—often branded like the 'Future Foam' recognized in your images—are popular due to their resilience and moisture resistance. These pads reduce wear on both the carpet fibers and the wood underneath while providing insulation and soundproofing. Before laying down the pad, measure your room carefully and cut the padding to fit, leaving a small gap along walls to allow for expansion. Securing the padding with appropriate adhesive or staples ensures it stays in place without causing damage. Avoid overlapping pads since this can create lumps. After installing the carpet pad, it's advisable to inspect the entire surface to confirm there are no bumps or wrinkles, as these can lead to premature carpet wear. Additionally, maintaining ideal indoor humidity prevents the wooden subfloor and padding from warping. Overall, taking your time with these preparation and installation steps will significantly enhance the longevity and comfort of your carpet floor covering, making your home improvement project more satisfying and effective.