Catalog

Commercial Rough Opening & Handling

Hollow Metal Frames – Sizing KD Drywall Frame • Width = Opening + 2" • Height = Opening + 1" Welded Frame (Block/Concrete)

• 2" Head → Width = Opening + 4 3/8". Height = Opening + 2 3/8". • 4" Head → Width = Opening + 4 3/8". Height = Opening + 4 3/8".

Jackson LUMBER & MILLWORK

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July 2026