<span style="margin: 0px; padding: 0px; box-sizing: border-box; border-color: #e5e5e5; font-weight: 600; color: #707070; font-family: Jost, sans-serif; font-size: 16px;">Solid core interior doors </span>are important for privacy, protection, <span style="margin: 0px; padding: 0px; box-sizing: border-box; border-color: #e5e5e5; font-weight: 600; color: #707070; font-family: Jost, sans-serif; font-size: 16px;">energy economy</span>, and the way a room looks. They are more than just ways to get from one room to another.