B-Stock - UnderBlock Rubber Underlayment - 48" x 15FT x 12mm (60 sq ft, 1 roll) SAVE 40%

If you're looking for our standard UnderBlock: A-Stock can be purchased on the UnderBlock listing.

B-Stock UnderBlock™ Rubber Flooring Underlayment

• Rubber underlayment excels at reducing impact noise, airborne noise, and vibration. 
• 90% recycled rubber.
• Compatible with just about any floor finish and assembly.
• Each roll is 12mm thick 4'x15' (60 Sq Ft).
• The b stock rolls have minor nicks, scraps, and chipped pieces at the ends of the rolls.

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