M1X10 9-1/4" Flatstock S4S E2E Primed MDF is a mdf flatstock board, factory-primed and ready for topcoat used for interior band moulding, panel frames, wainscoting cap rails, picture rails, and built-up moulding assemblies. Flatstock provides a smooth, consistent face that forms the base layer of detailed trim assemblies, and is the standard material for custom millwork details in both new construction and renovation projects. Available at Windsor Plywood locations across Canada.
Features
- Factory white primer -- paint-ready, no site priming required
- MDF -- consistent density, no knots, smooth painted surface -- smooth, flat face ideal for painted trim assemblies
- Eased 2 Edges (E2E) finish -- eased edges for a softer profile in painted applications
- Width: 9-1/4" -- suitable for band moulding, wainscot cap rails, and panel frame applications
- Used as the flat base component in built-up moulding assemblies between profile mouldings
- Pairs with casing, baseboard, crown, and panel moulding profiles from Windsor Plywood
Specifications
| Material |
MDF |
| Profile |
Eased 2 Edges (E2E) |
| Width |
9-1/4" |
| Finish / Coating |
Factory white primer |
| Application |
Interior -- band moulding, panel frames, wainscot cap rails, built-up assemblies |
| Availability |
In-store -- confirm current stock with your local Windsor Plywood location. Some products may be special order. |
Common Uses
M1X10 9-1/4" Flatstock S4S E2E Primed MDF is used as band moulding between baseboard and crown moulding, as wainscoting cap rails, picture rails, panel moulding frames, chair rails, and as the flat base component in custom built-up moulding assemblies. It is the most versatile trim component for custom millwork projects where a flat, smooth face is required between decorative profile mouldings.
Pro Tips
- Apply two finish coats of interior paint over the factory primer. For shadow-line band moulding applications, a semi-gloss finish shows the detail most clearly.
- For built-up moulding assemblies, nail the flatstock first to establish the base line, then add the profile mouldings above and below. This produces more consistent spacing than assembling all pieces at once.
- Use a pneumatic finish nailer for installation. Pre-drill near the ends of pieces if nailing by hand -- thin flatstock can split easily without pilot holes.
Frequently Asked Questions
What is flatstock used for?
Flatstock is a smooth, square-edged board used as the base component in built-up moulding assemblies -- band moulding between baseboard and crown, wainscoting cap rails, picture rails, and panel frames. It provides the flat face between decorative profile mouldings.
What is a built-up moulding assembly?
A built-up moulding is created by combining multiple individual profiles -- typically a flatstock base with smaller profile mouldings above and/or below it. This produces a more complex, architectural appearance than any single moulding can achieve alone, and allows for custom sizing and proportion matching to the room.
Can I paint this directly over the factory primer?
Yes. Apply two coats of interior latex paint directly over the factory primer. Lightly sand with 220-grit between coats for the cleanest result.
How much flatstock do I need?
Calculate the total linear footage of all the runs where flatstock will be used -- wainscot cap, band moulding, panel frames -- and add 10 to 15% for waste and cuts. Your local Windsor Plywood team can help calculate your order.
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