Zero 106A-36 Aluminum Bulkhead Door Adjustable Threshold
The Zero International 106A-36 Aluminum Bulkhead Door Adjustable Threshold is designed to provide a durable, weather-resistant seal for bulkhead and exterior door systems. Constructed from high-quality extruded aluminum, this threshold offers precise height adjustment to accommodate uneven flooring and ensure a tight seal against drafts, moisture, and debris.
Engineered for commercial and residential applications, the adjustable design enhances energy efficiency, sound reduction, and door performance. It ensures smooth door operation while maintaining a professional and seamless finish.
Features
-
Adjustable Height Design
Allows fine-tuning for a perfect seal against various floor surfaces. -
Durable Aluminum Construction
Made from high-strength extruded aluminum for long-term stability and corrosion resistance. -
Improved Environmental Sealing
Protects against air infiltration, water penetration, and dust accumulation. -
Energy Efficient
Helps maintain interior temperature by reducing heat loss and drafts. -
Universal Compatibility
Suitable for bulkhead and standard door applications in both commercial and residential buildings. -
Easy Installation
Pre-drilled holes and precision manufacturing allow for quick, secure installation.
Specifications
| Attribute | Details |
|---|---|
| Manufacturer | Zero International |
| Model / Series | 106A-36 |
| Product Type | Adjustable Door Threshold |
| Material | Extruded Aluminum |
| Finish | Mill or Clear Anodized Aluminum |
| Length | 36 inches |
| Design | Bulkhead door adjustable threshold |
| Adjustability Range | Varies based on floor alignment |
| Applications | Bulkhead, exterior, and high-traffic entry doors |
| Features | Adjustable height, weather seal, corrosion-resistant |
| Mounting | Surface mount |
| Compliance | ADA and ANSI standards (where applicable) |
Manufacturer Resources
Zero Full Line Catalog
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Thresholds
- Product Type:
- Thresholds
- ADA Accessible:
- No
- Commercial/Residential:
- Commercial
- Product Finish:
- Aluminum Mill
- Performance Rating:
- Fire Rated-UL10c
- Department:
- Door Hardware
Zero International 106A-36 – Frequently Asked Questions
1) Is the Zero 106A-36 threshold ADA compliant for a barrier-free opening?
No. The Zero 106A-36 aluminum adjustable threshold is listed as not ADA accessible, so don't spec it on an accessible route where the threshold height and bevel have to meet ADA. Use an ADA rated saddle or low-profile threshold for those openings instead.
2) Can the Zero 106A-36 threshold be used on a fire rated door opening?
Yes. The 106A-36 carries a Fire Rated UL10c performance rating, so it can go under a fire rated door assembly. Follow the opening's listing and use fasteners suited to the floor substrate.
3) Will a 36 inch threshold work on my 36 inch door, or do I need to cut it?
The 106A-36 is a 36 inch extruded aluminum threshold, which suits a standard 3-0 single door opening. Aluminum thresholds are routinely cut down on site with a miter saw for a tighter frame-to-frame measurement, so measure the actual opening between jambs before you cut.
4) What does the adjustable part of this Zero bulkhead threshold actually do?
The height adjusts so the top of the threshold can be brought up or down to meet the bottom of the door. That matters on bulkhead and exterior openings where the slab or stoop is uneven or has settled, and it lets you close the gap against drafts, water and debris without shimming the whole unit.
5) How does the Zero 106A-36 mount, and does it need a recess in the floor?
It surface mounts, so it sits on top of the finished floor or stoop rather than dropping into a recess. Pre-drilled holes are provided; you supply anchors appropriate to concrete, wood or steel underneath.
6) Is the Pemko 61 interlocking J hook the same thing as this Zero adjustable threshold?
No, they do different jobs. The Pemko 61 Series is a 36 inch steel interlocking J hook threshold accessory, a hook piece that pairs with a door bottom to interlock. The Zero 106A-36 is a standalone adjustable aluminum threshold that seals against the bottom of the door. If your door bottom already has a mating hook, the Pemko is the piece you need; if you're just sealing a bulkhead or entry opening, use the Zero.
7) For a fire rated commercial opening, should I use the Zero 106A-36 or a Pemko 61 J hook?
The Zero International 106A-36 carries a Fire Rated-UL10c performance rating and is designated for commercial use, so it is the one to specify when the sill hardware has to sit in a fire rated commercial opening. The Pemko 61 is described as an interlocking J hook threshold accessory in steel, a mating piece for an interlocking door bottom rather than a rated adjustable sill. Note also that the 106A-36 is not an ADA accessible profile, so if the opening must meet an accessible route requirement, neither of these is the right selection and a low profile ADA threshold should be used instead.
8) Is the Zero 106A-36 threshold rated for commercial traffic or is it a residential part?
It's classified commercial, and the aluminum extrusion is intended for exterior and high-traffic entry doors as well as bulkhead openings. For a property manager standardizing entries across a building, that's the duty level you want at an exterior door.
9) What finish does the Zero 106A-36 come in, and will it corrode outside?
It ships in aluminum mill finish, and it's sold in a single aluminum finish option. Extruded aluminum resists corrosion at an exterior opening, which is why it's used on bulkhead and entry doors rather than a plated steel part.
10) What is the material difference between the Zero 106A-36 and the Pemko 61 at the same 36 inch length?
Both run 36 inches. The Zero International 106A-36 is extruded aluminum in a mill aluminum finish, which resists corrosion and keeps weight down at an exterior bulkhead sill. The Pemko 61 is steel construction. Steel and aluminum behave differently where salt, standing water or dissimilar metal contact is a factor, so match the choice to the sill condition and to whatever door bottom the opening already carries.
How fast can I get the Zero International 106A-36 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Zero International 106A-36 come with a warranty?
Absolutely. The Zero International 106A-36 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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