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.
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, and on supports at least 1.5″ wide
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.
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, and on supports at least 1.5″ wide
Load Tables developed by APA: The Engineered Wood Association
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