Door Casing Flat Stock -NAF
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NAF · DOOR CASING
Flat stock casing.
Square edge, primed face.
Pre-primed MDF trim from NAF in 5/8″ × 3-1/2″. A flat, uniform band around doors and windows, cost-effective and easy to paint.
3-1/2″
face width
5/8″
thickness
MDF
pre-primed
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Flat and uniform.
A square 5/8″ × 3-1/2″ section with no steps or coves. It gives openings a straight, contemporary edge.
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Paint-ready out of the box.
The factory primer means one less coat on site. Topcoat it in any colour once the trim is fastened and filled.
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Cost-effective trim.
MDF keeps the price down on whole-house trim runs. It stays dimensionally consistent from stick to stick.

Flat stock, 5/8″ × 3-1/2″, primed MDF.
Cut. Nail. Paint.
Cut the legs and head, fasten to the jamb and stud, fill and sand, then topcoat over the primer. Or let our team handle it — supply & installation across Kitchener-Waterloo with a free in-home estimate.
Tech Specs
Measure each opening and add 10% for cuts and waste. NAF primed MDF casing is available in other profiles to match.