IronPly ® Premium Underlayment

IronPly® Premium Underlayment – Premium Quality, Proven Performance

IronPly® plywood underlayment provides the strength, stability, and a smooth surface needed for lasting floor installations. With proven performance and excellent value, it’s ideal for contractors and homeowners looking for premium results on every flooring project.

  • Backed By Our Lifetime Warranty - For residential flooring only
  • Flooring Industry Approved - IronPly® plywood underlayment has been tested and approved by Armstrong®², Congoleum®, IVC US®, Mannington®, and Tarkett® for use with their flooring. IronPly® plywood uses an exterior glue bond³, as required by the major flooring manufacturers' warranties.
  • Approved For Use Under These Flooring Products - Sheet vinyl, vinyl composite tile (VCT), luxury vinyl tile (LVT), luxury vinyl plank (LVP), ceramic tile, carpet, engineered floors, cork floors, and wood floors.
  • TCNA Tested - Extra Heavy Classification - IronPly® panels received an "Extra Heavy" classification per the ASTM standards for ceramic tile installations by the Tile Council of North America.
  • GO GREEN - All the wood veneers in IronPly® plywood come from plantation and sustainable wood sources. IronPly® panels contain no tropical woods or species from endangered forests.
  • NGBS Green Certified - IronPly® plywood underlayment is certified for points toward ICC-700 National Green Building Standard™ (NGBS).
  • Awarded Utility US Patent - U.S. Patent No. 8,414,996
  • Awarded Method US Patent - U.S. Patent No. 9,242,391
  • Awarded Methods and Bonding Agents US Patent - U.S. Patent No. 12,312,501
  • Premium Grade - IronPly® plywood features a center core, face, and back all made from premium-grade wood veneers. Each 1/4" plywood underlayment panel is finely sanded to deliver a smooth, consistent surface - ideal for fast, reliable installation and superior finish results.
  • Delamination-Free, Solid, Uniform Core - IronPly® panels are manufactured using advanced, state-of-the-art technology and undergo multiple quality control inspections to ensure a tight, uniform core for performance you can trust.
  • No Bleed-Through - IronPly® plywood underlayment veneers are carefully selected to prevent bleed-through - ensuring a smooth, flawless surface for your finished flooring.
  • Best Packaging In The Industry - All crates of IronPly® plywood include two layers of packaging for complete product protection and damage-free arrival.
  • Easy To Use - No special tools are required for IronPly® plywood underlayment installations. Score and Snap IronPly® panels using a utility knife and a straight edge to quickly size each panel on the job - saving time and reducing mess without the need for saws or power tools.
  • EPA TSCA Title VI Compliant
  • Approximate Panel Weights - 4' x 4' = 9 lbs.  /  4' x 8' = 18 lbs. 
  • Available Sizes - 4' x 8' and 4' x 4'. All panels are 1/4" nominal thickness.

IronPly® - Flex & Look Test

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Additional IronPly® Plywood Underlayment Links:

¹ Please read our IronPly® plywood underlayment warranty for full details.
² Please contact Patriot Timber Products, Inc.
³ Panels are designed for interior and weather protected flooring applications only (not for direct exterior exposure).

IronPly® panels are protected by one or more issued U.S. and foreign patents, which may include U.S. Patent Nos. 8,414,996, 9,242,391, and 12,312,501.