ATLANTIC ENTRY SOLUTIONS

The Performance Opening

An opening is an assembly, not a door.

Frame, leaf, glazing, louver, seals and threshold each come from a different factory — and each one decides how the finished opening performs. Select any component to see what it does and which line supplies it.

Select a component of the opening
Exploded view of a commercial door opening A commercial swing opening drawn as an exploded elevation: frame, door leaf, vision lite, door louver, perimeter seals and threshold, each supplied by a represented manufacturer. The same information is listed in text below the diagram. Frame Door leaf Vision lite Door louver Perimeter seals Threshold
Project type — typical considerations
Performance layers — switch one off to see the difference
  • A complete opening: leaf, frame, glazing where sight lines matter, perimeter sealing and a threshold.
  • Exterior openings put the most demand on the sill — that is where water, air and heat move.
  • Confirm what the section calls for before pricing; this is a starting point, not a schedule.

Typical considerations for discussion and bid checklists — not a compliance determination and not a recommended assembly. What a project actually requires is decided by the authority having jurisdiction and the architect of record.

  • Observation and sight lines usually mean vision lites; privacy requirements often rule louvers out.
  • Acoustic separation between patient areas is commonly a driver — the whole assembly decides that, not the door alone.
  • Cleanability and stainless or lead-lined options come up frequently in imaging and sanitary areas.
  • Openings see heavy traffic, so durability and factory prep quality matter more than usual.

Typical considerations for discussion and bid checklists — not a compliance determination and not a recommended assembly. What a project actually requires is decided by the authority having jurisdiction and the architect of record.

  • Supervision sight lines into classrooms typically mean vision lites.
  • Abuse resistance and repairability tend to outrank finish on high-traffic corridors.
  • Acoustic separation between classrooms and corridors is a common requirement.
  • Transfer air between spaces sometimes calls for louvers — confirm against the mechanical design.

Typical considerations for discussion and bid checklists — not a compliance determination and not a recommended assembly. What a project actually requires is decided by the authority having jurisdiction and the architect of record.

  • Daylight and sight lines drive glazing; louvers are uncommon in finished office areas.
  • Acoustic privacy for meeting rooms is usually the deciding performance requirement.
  • Finish and consistency across the floor plate matter — factory finishing beats site work.
  • Entrance openings carry the thermal and weather load; the sill detail earns its keep there.

Typical considerations for discussion and bid checklists — not a compliance determination and not a recommended assembly. What a project actually requires is decided by the authority having jurisdiction and the architect of record.

Frame

Carries the leaf and transfers its load into the wall. Profile and anchoring change with the wall condition — masonry, stud or existing opening.

Engineered structural integrity for the specific wall condition, so the opening still operates in year fifteen.

Supplied by either

Current technical data — from the manufacturer

Door leaf

The door itself — core construction and facing decide durability, and every cut-out and hardware prep is made at the factory, not on site.

Factory-prepped precision: hinge, lockset, lite and louver preps arrive correct, which is field labour your PMs never spend.

Supplied by either

Current technical data — from the manufacturer

Vision lite

Glass, glazing kit and frame assembled as one unit and glazed into the leaf — the glass and the frame that holds it are certified together, not separately.

The clearest proof of the one-contact case: three lines coordinated into a single assembly, quoted and delivered together.

Supplied together by

Current technical data — from the manufacturer

Door louver

Moves air between spaces while keeping sight lines and security intact — cut into the leaf and framed back into the assembly.

Airflow without giving up privacy or the integrity of the door it sits in.

Supplied together by

Current technical data — from the manufacturer

Perimeter seals

Close the gap around the leaf — head, jambs and meeting edges — controlling air, light and sound movement through the opening.

The gap is where openings underperform. Sealing it is the cheapest performance you can specify.

Supplied by either

Current technical data — from the manufacturer

Threshold

Closes the opening at the floor and manages water, air and thermal transfer at the one edge that meets the outside directly.

A thermal break at the sill is what stops condensation showing up on a Maritime job in February.

Supplied by either

Current technical data — from the manufacturer

Product specifications change. Everything above links to the manufacturer's own current documentation — we'll pull exactly what your project needs. Ask about an opening →

All components, as a list
Frame
Carries the leaf and transfers its load into the wall. Profile and anchoring change with the wall condition — masonry, stud or existing opening. Either DeLa Fontaine or Lambton Door.
Door leaf
The door itself — core construction and facing decide durability, and every cut-out and hardware prep is made at the factory, not on site. Either Lambton Door or DeLa Fontaine.
Vision lite
Glass, glazing kit and frame assembled as one unit and glazed into the leaf — the glass and the frame that holds it are certified together, not separately. Glassopolis, National Guard Products and Anemostat.
Door louver
Moves air between spaces while keeping sight lines and security intact — cut into the leaf and framed back into the assembly. Anemostat.
Perimeter seals
Close the gap around the leaf — head, jambs and meeting edges — controlling air, light and sound movement through the opening. Either National Guard Products, Draftseal or Unique Architectural.
Threshold
Closes the opening at the floor and manages water, air and thermal transfer at the one edge that meets the outside directly. Either Draftseal, National Guard Products or Unique Architectural.

Openings that move

The sliding assembly.

Not every opening swings. A sliding leaf is carried overhead rather than hinged, which moves the engineering into the track and the pocket — and removes the threshold entirely. Select a component to see what it does and which line supplies it.

Select a component of the sliding assembly
Elevation of a sliding door assembly A sliding opening drawn in elevation: an overhead track with hangers carrying the leaf, a concealed pocket frame the leaf slides into, and a guide at the floor. The same information is listed in text below. Track & hangers Sliding leaf Pocket frame Floor guide

Track & hangers

Carries the entire weight of the leaf and sets how it runs. The track is fixed to structure — not to the finish — and the hangers are matched to the leaf weight.

The part that decides whether the door still slides properly in five years. Under-specifying it is the most common reason a sliding opening gets warranty attention.

Supplied by KrisTrack

KrisTrack — track systems & hardware (opens manufacturer site in a new tab)

Sliding leaf

The same wood or hollow-metal construction used on a swing opening, prepped instead for hanger hardware and an edge pull rather than hinges and a lockset.

Wood or steel is still your choice here — sliding does not force a material, and the finish can match the swing doors around it.

Either line Lambton Door DeLa Fontaine

Lambton — architectural wood doors (opens manufacturer site in a new tab) DeLa Fontaine — hollow-metal doors (opens manufacturer site in a new tab)

Pocket frame

The concealed cavity the leaf slides into, framed so the wall stays straight and the door has a true path. Supplied knock-down, half knock-down or ready-made.

Buying the pocket as a manufactured frame is what stops a bowed wall becoming a door that binds — the failure that is effectively unfixable once the wall is closed.

Supplied by KrisTrack

KrisTrack — pocket door frames (opens manufacturer site in a new tab)

Floor guide

Keeps the bottom of the leaf in plane without carrying its weight. A sliding door has no threshold — this is what stops it swinging out of line.

Small, cheap, and the item most often left off a schedule. Its absence is what makes a new sliding door feel loose.

Supplied by KrisTrack

KrisTrack — track accessories & guides (opens manufacturer site in a new tab)

Every component, in text

Track & hangers
Carries the entire weight of the leaf and sets how it runs. The track is fixed to structure — not to the finish — and the hangers are matched to the leaf weight. Supplied by KrisTrack.
Sliding leaf
The same wood or hollow-metal construction used on a swing opening, prepped instead for hanger hardware and an edge pull rather than hinges and a lockset. Supplied by Lambton Door or DeLa Fontaine.
Pocket frame
The concealed cavity the leaf slides into, framed so the wall stays straight and the door has a true path. Supplied knock-down, half knock-down or ready-made. Supplied by KrisTrack.
Floor guide
Keeps the bottom of the leaf in plane without carrying its weight. A sliding door has no threshold — this is what stops it swinging out of line. Supplied by KrisTrack.

Why it matters

One assembly, one point of contact.

Coordinating six components across six factories is where commercial openings go wrong — a lite kit that doesn't suit the leaf, a threshold that doesn't suit the frame, a seal specified after the door was ordered. Representing complementary, non-competing lines means those decisions get made together, once.

For estimators, that means one call instead of six. For spec writers, it means the assembly is coherent before it reaches the project manual.

Ask about an opening See the full line card

Specifying a Division 8 opening? Talk to a specialist.

Technical support for specifiers, fast accurate quoting for estimators, and factory-direct training for your team.

(902) 956-1012 tam@atlanticentry.ca

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