The Crown HDO brand has had proven success for over 40 years and is ideal for applications that require higher panel reusability than a traditional Concrete Form MDO.

Features & Benefits

Crown HDO is constructed with high strength Douglas fir veneer.  The high resin content HDO is applied in a one-step process.  All adhesives used are fully waterproof phenolic resins that meet CSA exterior glue bond standards.

Available in 1220 mm x 2440 mm and 610 mm x 2440 mm in 17.5 mm thickness

  • CSA Certified Panel
    All of our products are built to meet CSA O121 for Douglas Fir Plywood and undergo rigorous inspection and testing by our Quality Control team.

  • Crown HDO Weights
    Crown HDO can be specified as either one or two sided panels with 100 or 120 weight pouring faces, and 30, 100 or 120 weight backs to meet your job site requirements.

  • Hardwood Options
    Crown HDO panels are also available with hardwood faces and backs.  This provides a smoother pouring face and more durable panel than our traditional softwood options.
    Click here to view the Hardwood page

  • Two Piece Inner Plies
    Our two piece, Douglas fir inner ply construction method is engineered to provide a more solid panel that can better stand up to job site wear and tear.

  • Multi-Layer Edge Protection
    For additional protection against moisture, all Crown HDO panels are edge puttied and then thoroughly coated with a silver, aluminized, resin-rich alkyd edge seal.

  • Factory-Applied Release Agent
    For safety reasons, Crown HDO panels do not come factory coated with release agent.  Prior to each use, Crown HDO requires application of Nox-Crete or equivalent release agent.

    See Care & Handling for more information

Load-Span Tables

Allowable pressure (kN/m2) for the indicated deflection limits – 17.5 mm thickness – Wet Conditions

Support Span
(center to center)
L/270
(kN/m2)
L/360
(kN/m2)
203 mm 96 96
305 mm 58 53
406 mm 33 25
488 mm 20 15
610 mm 11 8

8′ Perpendicular to supports

Support Span
(center to center)
L/270
(kN/m2)
L/360
(kN/m2)
203 mm 45 45
305 mm 28 22
406 mm 12 9
488 mm 9 7
610 mm

8′ Parallel to supports

Note: Applicable for plywood across two or more spans
Load Tables developed by APA: The Engineered Wood Association

Features & Benefits

Crown HDO is constructed with high strength Douglas fir veneer.  The high resin content HDO is applied in a one-step process.  All adhesives used are fully waterproof phenolic resins that meet CSA exterior glue bond standards.

Available in 1220 mm x 2440 mm and 610 mm x 2440 mm in 17.5 mm thickness

  • CSA Certified Panel
    All of our products are built to meet CSA O121 for Douglas Fir Plywood and undergo rigorous inspection and testing by our Quality Control team.

  • Crown HDO Weights
    Crown HDO can be specified as either one or two sided panels with 100 or 120 weight pouring faces, and 30, 100 or 120 weight backs to meet your job site requirements.

  • Hardwood Options
    Crown HDO panels are also available with hardwood faces and backs.  This provides a smoother pouring face and more durable panel than our traditional softwood options.
    Click here to view the Hardwood page

  • Two Piece Inner Plies
    Our two piece, Douglas fir inner ply construction method is engineered to provide a more solid panel that can better stand up to job site wear and tear.

  • Multi-Layer Edge Protection
    For additional protection against moisture, all Crown HDO panels are edge puttied and then thoroughly coated with a silver, aluminized, resin-rich alkyd edge seal.

  • Factory-Applied Release Agent
    For safety reasons, Crown HDO panels do not come factory coated with release agent.  Prior to each use, Crown HDO requires application of Nox-Crete or equivalent release agent.

    See Care & Handling for more information

Load-Span Tables

Allowable pressure (kN/m2) for the indicated deflection limits – 17.5 mm thickness – Wet Conditions

Support Span
(center to center)
L/270
(kN/m2)
L/360
(kN/m2)
203 mm 96 96
305 mm 58 53
406 mm 33 25
488 mm 20 15
610 mm 11 8

8′ Perpendicular to supports

Support Span
(center to center)
L/270
(kN/m2)
L/360
(kN/m2)
203 mm 45 45
305 mm 28 22
406 mm 12 9
488 mm 9 7
610 mm

8′ Parallel to supports

Note: Applicable for plywood across two or more spans
Load Tables developed by APA: The Engineered Wood Association

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CROWN HDO – JAN 2018