Integra Wood International IntegraPly™ with man using nail gun in a large room

Prior to installation, make certain that the subfloor is sound and meets all local building codes. Wood should be allowed to acclimate at the job site for a minimum of 24-48 hours prior to installation. Subfloor surface should be cleaned of all oil, dirt and debris. Sanding may be necessary to correct any uneven joints.


  • Slide joints and ends offset at least 6″ from existing subfloor seams.
  • Lightly stagger end seams.
  • Offset underlayment end seams by 18″.
  • Use full sheets when possible.
  • Butt factory edge to factory edge.


  • Use a jigsaw or circular saw for best results.
  • Score before cutting to minimize splintering.
  • Use a power saw on the underside for a clean cut on the face.
  • Score or drill from the face.
  • Allow 1/8″ minimum to 1/4″ maximum expansion.
  • Undercut stationary vertical surfaces that require an even fit.
  • Butt seams lightly in the field.
  • Align 3 full sheets before fastening for a square layout.
  • Using the three panels in a stair-step configuration allows quick positioning for remaining sheets.


  • Nails should be crowned galvanized, ring shanked, 1-1/4″ long.
  • Fastener should be no longer than thickness of sub floor and IntegraPly™ combined.
  • Do not fasten to the underside of the subfloor.
  • Nail heads no larger than 1/4″ in diameter,
  • Drive nail head flush with the IntegraPly™ surface.
  • Staple’s crown should not exceed 1/4″.
  • Fasten IntegraPly™ every 2″ at the seams; 4″ in the field. Nail/staple on “X” marks for correct placement to ensure stability.
  • Nail or staple no closer than 1/2″ from the edge of the panel.
  • Fasten two edges, then work diagonally to the opposite unfastened corners.
  • Secure the remaining two edges.


  • Sand joints before patching for flush seams.
  • Use a belt sander at a 45 degree angle to the seam.
  • Use a polymer modified cement based patch.
  • Allow patch to dry, then sand.


  • Install floor covering according to the manufacturer’s recommendation.