Our beds are designed with safety as our top priority. Our beds have a 400 lbs weight capacity limit per bed, safely holds toddlers to teens. Our beds are equipped with solid pine, seven- 9 inches apart slats, and metal support bars. We offer an upgraded slat roll that has fourteen slats -2.5 inches apart. We offer this for customers who use softer foam mattresses that may need the added surface area. If you are interested, you can certainly purchase these upgraded slat rolls here here: https://maxandlily.com/collections/shop?q=slat+roll