Z-Series Adjustable Inswing Sill

Reliable Performance.

Our line of adjustable composite and aluminum sills utilize all-synthetic components that protect against discoloration, warping and dents. Integrated seals and standard cap plugs help to further enhance performance while eliminating unsightly screws and maintaining adjustability over time.

With many sizes and styles to choose from, it’s easy to meet your specific application needs.

Z-Series Adjustable Inswing Sill

Z-Series Adjustable Inswing (ZAI) Sill Features:

Won’t Warp or Rot

Unlike wood-based sills, our ZAI sills feature a composite substrate that will not warp or rot, eliminating the worries of wood.

Narrow Cap

Because of the narrow threshold cap, the drip edge on the door bottom detects water a full 1/4″ in front of the cap, protecting against air and water infiltration.

Protected Adjustment

ZAI’s cap covers protect adjustment screws from unsightly damage and ensure consistently smooth adjustability over time.

High Dam, Integrated Seal

A dual durometer cap seal overlaps the high dam. Both combine to provide a barrier to air and moisture even in the most extreme weather conditions.

Z-Series Family

Z-Series Sill Systems can be configured to work with composite or aluminum caps, in addition to inswing or outswing door systems.

All-Aluminum Available

Available with an all-aluminum cap in both mill and bronze finishes for enhanced performance in high-heat markets.

Available in a variety of substrate types to best fit your needs and budget.

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