What are the dimensions of the Beautyrest Flat Foundation?

The dimensions for each size are as follows:


Twin: 74"L x 37.5"W x 9"H

Twin XL: 79"L x 37.5"W x 9"H

Full: 74"L x 52.5"W x 9"H

Queen: 79"L x 59.5"W x 9"H

King: 79"L x 75"W x 9"H

California King: 83"L x 71"W x 9"H

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