On-Guard Straight Grain Jamb

On-Guard Straight Grain jambs, or frames, are a full composite jamb that has a lifelike wood grain appearance and is ready for paint or stain on site. It is a great jamb for houses that are close to the shore or get excessive water infiltration. The frame itself is rot proof and works great with a Therma-Tru Mahogany or Rustic door unit.

Reeb Finish

This jamb species can be painted or stained by Reeb Finish and will have a 10 year warranty.


On-Guard Straight Grain jambs can be used with single doors, double doors, doors with one sidelite and doors with two sidelites.


The On-Guard Primed jamb is available in 4-9/16″, 5-1/4″, 6-9/16″, and 7-9/16” jamb depths. This jamb cannot be customized to other jamb depths. Transom sills are also available in standard 4-9/16” and 6-9/16” sizes, with reinforced transom depth options of 4-9/16″, 5-1/4″, 6-9/16″, or 7-9/16″.


All standard heights are available for this type of frame.

Exterior Casing

Brickmould is available as an exterior trim in a matching material and will be 2” in width.

Updated on May 15, 2021

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