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For an ongrade concrete sub floor under laminate floor, is foam or felt/fiber underlayment better? - MP Global Products, LLC
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QUIETBOARD Rigid Fiber Board 3-ft x 2-ft x 6-mm Premium Felt Flooring Underlayment (90-sq ft / (Panel) in the Flooring Underlayment department at Lowes.com
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CALI 27.3-ft x 3.67-ft x 3-mm Premium Felt Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com
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