Endura Z-Series Adjustable Inswing Cap Sill

Z-Series Composite Door Sills are simply the best sills on the market. The Z-Series uses a patented design of all synthetic components that eliminates the worries of wood substrate sills. The Endura Z-Series family of sills provides modularity within components, allowing you to upgrade your system as your needs change.

Built to last, the advanced all-composite substrate and streamlined synthetic cap means no rotting, warping or deterioration over time. Screw covers keep debris out for easy adjustment anytime, and prevent exposure to unsightly rusted screws.

*While we know it’s fun to door-it-yourself, we recommend hiring a professional to replace your sill system. This product is recommended for uninstalled doors and professional use only. 

This product does not qualify for expedited shipping.

Starting at: $40.00

Product Options


Return Policy: 60 Days

Starting at: $40.00

Product Overview


• This product qualifies for $4.99 Standard Shipping to the contiguous 48 states

• Adjustable, composite sill for inswing doors
• Substrate design enables ultimate flexibility in cutting the sill for the proper size by providing a continuous surface throughout the length of the sill.
• Continuous-block substrate design enables custom cutting to ensure proper sizing for your door unit
• Full caulking surface –Full, continuous composite substrate surface provides a full caulking surface for easy, secure attachment to the rough opening during installation
• Sealed adjustment screws to prevent water and debris from entering the cap channel and interfering with the adjustment mechanisms. Screws located within the cap allow for easy adjusting to ensure a proper seal against the bottom of the door. Sill cap plugs protect adjustment screws and enhance the appearance of the cap.
• Unique Design – Sill cap with integrated seal overlaps the front of the aluminum sill dam to provide a barrier against air and moisture and protect the channel from dirt and debris
• Available in a variety of length and finish options for ultimate customization

• Endura Part Number: ZAIL__F__

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