The NGP 115NA is a smoke-rated astragal set for a pair of doors, the sealing assembly that closes the gap where two doors meet so smoke can't pass between them. An astragal is the molding that covers the vertical seam between the active and inactive leaves of a double door, and this one carries a neoprene seal that makes the joint smoke-resistant. It's clear anodized aluminum, comes as a 96" set, and is built for fire and smoke-rated openings where code requires the meeting edge of a pair to be sealed. The screws are furnished and the screw holes are slotted for adjustment, so you can fine-tune the fit on the door.

What a smoke-rated astragal does

This is worth understanding, because the astragal is a specific part of a rated door assembly. On a single door, perimeter gasketing seals the head and jambs, but on a pair of doors there's an additional gap right down the middle where the two leaves meet. Left open, that seam is a path for smoke (and drafts, light, and sound) to pass through. An astragal closes it: it's mounted on the meeting edge and overlaps or seals against the other leaf, so the pair functions as a continuous barrier when closed.

The "smoke-rated" part is what makes the 115NA more than a trim piece. With its neoprene seal, it's intended for smoke-rated and fire-rated openings, where building and life-safety codes require the door assembly to resist the passage of smoke, exactly the kind of detail an inspector checks on a rated corridor or stairwell pair. The neoprene compresses against the mating surface to form that seal while still allowing the doors to operate.

Built for adjustable, lasting installation

The 115NA is made for a clean, durable install. The astragal body is aluminum with a clear anodize finish, which resists corrosion and wear and coordinates with other anodized door hardware. It comes as a 96" length, the standard height for a pair of doors, and includes #6 x 3/4" stainless steel sheet metal screws. The screw holes are slotted rather than round, so you can shift the astragal slightly during installation to get the seal-to-door alignment right, which matters on a smoke seal where a poor fit means a poor seal. As an oversized item, it ships with appropriate freight handling.

NGP 115NA specifications

• Type: Smoke-rated astragal set, for the meeting edge of a pair of doors.

• Seal: Neoprene.

• Material/finish: Aluminum, clear anodize.

• Length: 96".

• Fasteners: #6 x 3/4" stainless steel sheet metal screws (furnished).

• Adjustment: Slotted screw holes for fit adjustment.

• Application: Fire-rated and smoke-rated door pairs requiring a sealed meeting edge.

• Manufacturer: National Guard Products (NGP).

• Model: 115NA (115NA96).

Why choose the NGP 115NA

National Guard Products is a leading maker of door gasketing, thresholds, and seals, and the 115NA is its smoke-rated astragal for sealing the meeting edge of a pair. You get a code-oriented neoprene smoke seal, durable clear-anodized aluminum, a standard 96" length, furnished stainless screws, and slotted holes for a precise fit, everything needed to seal a double-door seam on a rated opening. For fire and smoke-rated pairs that need the center gap closed to pass inspection, it's a straightforward, reliable choice.

One thing to confirm before ordering: the 115NA is a 96" astragal set in clear anodize with a neoprene seal. Verify your door height and the swing/overlap configuration of your pair, and check your opening's fire and smoke rating requirements so the astragal matches what the assembly calls for. For perimeter sealing on the head and jambs, NGP also offers gasketing and seals to complete the opening.

Order the NGP 115NA from American Locksets

We stock NGP gasketing, thresholds, and astragals from authorized distribution, so every product ships with the manufacturer warranty. Compare options in the astragals category, see the full thresholds and gasketing range, or browse all builders hardware.