BedInABox.com's 8" American hardwood mattress foundation combines U.S. grown poplar hardwood and a high-quality quilted cover, to create a beautiful and strong foundation.
Please read our FAQ 'Do I need a foundation or can I use my existing box springs?' for more details.
Please note: Assembled King foundations are one complete 75.5 x 79" foundation. If your bed frame is designed for a 'Split' King foundation, please order two Twin Extra Long sizes. Assembled Cal-King foundations are one solid 71.5 x 83" foundation. 'Split' Cal-King foundations are not available.
|Mattress/Foundation Size||Dimensions||Weight||Shipping Dimensions|
|Twin Extra Long||37.75x79.25x8||42 lbs.||4x16x81|
|California King||71.75x83.25x8||79 lbs.||4x16x85|
Knockdown Frameworks, Inc. warrants all of its products for five years against any defects that are due to faulty materials or workmanship. This warranty covers product defects only and will expire five years after date of purchase by the original consumer purchaser, with proof of purchase required. This warranty does not apply to damage caused by and resulting from misuse, neglect, accident, or improper operation, maintenance, storage, transportation, or handling of the product. This warranty is for for residential use only and does not apply if the product is used in any commercial application (such as rental property). This warranty does not cover any incidental or consequential damages.