Image Title: Full Size Mattress Box Spring Furniture Extra Long Twin Mattresses Within Plan 8. Filename: full-size-mattress-box-spring-furniture-extra-long-twin-mattresses-within-plan-8.jpg. Image Dimension: 584 x 584 pixels. Images Format: jpg/jpeg. Publisher/Author: Rickie Prosacco. Uploaded Date: Saturday - May 05th. 2018 00:25:20 AM. Category: Architecture. Image Source: zillow.com.