MCN-024 6-9/16″Reinforced Mull Post

The MCN-024 Reinforced Mull Post is a 6-9/16" vertical structural member designed for combined door and window systems. It connects and secures adjacent units (such as fixed windows, operable windows, doors, and sidelites), providing additional structural strength to ensure stability and safety for large-span openings.

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Dimensions

Overall Height / Length: 6.562″ (166.68 mm)
Main Body Width / Face Width: 2.5″ (63.50 mm)
Flange Depth / Installation Depth: 1.5″ (38.10 mm)

Note: Key profile dimensions shown above. The 6-9/16″ reinforced size is suitable for large-span openings or high wind load areas.

Key Features

Reinforced structure – Enhanced bending resistance and load capacity for large-span openings
6-9/16″ tall profile – Greater structural depth for improved rigidity
Designed for combined systems – Connects fixed windows, operable windows, doors, and sidelites
Three precision dimensions – Complete installation parameters for easy selection and on-site fitting
Wind load resistance – Enhanced capability to withstand wind pressure, suitable for high-rise buildings
Durable material – Resists warping and weathering; reliable for long-term use

Applications

Vertical connection between fixed and operable windows
Division post between door and sidelite
Mullion structure for large floor-to-ceiling windows or curtain walls
Combined door and window systems in commercial buildings and high-rise residences
Wide openings requiring additional structural reinforcement

Installation Tips

Ensure the top and bottom frames are level and the mull post position is plumb before installation
Secure the mull post to the top and bottom frames with appropriately sized screws
Butt adjacent window/door units tightly against the post and seal with caulk
For large-span openings, consider adding intermediate support or connecting to structural beams
After installation, check the post for plumb and ensure smooth door/window operation

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