Hi, Yes all our bed frames are heavy duty so can be used for adult use. The base slats are thicker, the side rails have base slat supports that are screwed not stapled. Added with the fact this is solid pine not MDF this product is for heavy duty use. Each base has been tested to take a weight up to 40 stone. However, its not the weight but how the bed is used. A three stone child jumping on a bed caused more damage than an adult.