Missing fire rated door hardware: do you bid it as drawn, or as required?

Set 11 has a 90 minute door, a lockset, three hinges, and nothing else. No closer. No seal. The bid is due Thursday and you’ve about four minutes to decide what that opening costs.

Most of the writing on this problem starts from the wrong place. It assumes the architect made a mistake and the question is what to do about it. Sometimes that’s right. Often it isn’t, because fire rated door hardware is governed by rules that a door schedule doesn’t show you, and an opening that looks underspecified may be correct as drawn. This is a different problem from an opening whose scope belongs to another division, and a different problem again from a set that’s simply incomplete.

A rated opening that looks underspecified is often correct as drawn

Before you decide how to price a gap, establish that there’s one.

This sounds pedantic and it’s the opposite. Estimators add hardware to rated openings all the time on the assumption that a rating carries requirements with it, and a good share of the time that assumption adds cost to a bid that didn’t need to carry it. The reverse error is more expensive but the first one loses jobs.

Three things drive what a rated opening actually needs, and a division 8 takeoff that prices only from the schedule will miss two of them. The rating itself drives very little of it. What the door is required to do is set by the wall it sits in, the occupancy, and the door’s own listing, and only one of those three appears on a typical door schedule.

So the sequence is: find out what’s required, then decide what to bid. Those are separate decisions and running them together is where the money goes.

A fire rating doesn’t trigger a smoke seal. The wall does

Gasketing requirements come from the door’s location, not from its fire rating.

This is the single most misunderstood item in Division 8 pricing, and it’s worth being precise about. Under the International Building Code, the air leakage requirement that drives gasketing appears in Section 716.2.2.1.1, and it applies to the doors scoped by Section 716.2.2.1: 20 minute fire door assemblies located in corridor walls or smoke barrier walls that are rated per Table 716.1(2). Those assemblies have to hold air leakage to no more than 3.0 cfm per square foot of door opening at 0.10 inch of water, in both the ambient and elevated temperature tests. Section 710.5.2.2 carries a parallel requirement for doors in smoke partitions, where required elsewhere in the code.

Read what that excludes. A 90 minute door in a 2 hour fire barrier isn’t in a corridor wall and not in a smoke barrier. Section 716 asks nothing of it on air leakage. It needs to be a rated assembly, self-closing and positive latching, and that’s the list.

A 20 minute door in a rated corridor, the cheapest looking opening on the schedule, is the one that carries the gasketing requirement.

If you’ve been pricing seals by reading the rating column, you’ve been pricing the wrong openings in both directions.

Where does the belief come from? Mostly from the United Kingdom. UK practice under Approved Document B does commonly put intumescent strips and smoke seals on fire doorsets as a matter of course, and a great deal of the searchable writing on fire doors is written to that regime. It doesn’t transfer.

The code requires self-closing. It doesn’t require a closer

A door closer is one way to satisfy the code, not the thing the code asks for.

Section 716.2.6.1 requires fire doors to be latching and self-closing or automatic-closing. The word “closer” doesn’t appear. Any listed means of achieving self-closing satisfies the requirement, and spring hinges are contemplated for this purpose in NFPA 80’s own annex material, which notes that they should be adjusted so the door achieves positive latching when released from 30 degrees open.

There are exceptions on the closing requirement itself, and they’re narrow. The code lists fire doors in common walls separating sleeping units in Group R-1, and elevator car and hoistway doors at the recall floor during Phase I emergency recall. The 2024 edition widens the first to dwelling units or sleeping units in Group R-1 and adds an exception for doors required only by ICC 500 storm shelter provisions.

Separately, Section 716.2.6.5 permits delayed-action closers on doors that have to be self-closing but not automatic-closing, and Section 716.2.6.6 permits hold-open devices on automatic-closing doors in seven listed locations, provided the door releases on smoke detector actuation or power loss and begins closing within 10 seconds.

For an estimator the practical consequence is narrow but real. If the schedule shows spring hinges and no closer on a rated opening, that may be a complete specification rather than an omission, and adding a closer to the bid adds cost the drawings didn’t ask for.

Both leaves of a pair need an active latch bolt

On a pair of rated doors, the inactive leaf needs latching too, and this is the gap that shows up in the field more than any other.

Section 716.2.6.2 requires that a single fire door and both leaves of a pair of fire doors have an active latch bolt that secures the door when closed, unless something else in the code specifically permits otherwise. Two words in that sentence do work. “Active” rules out a deadbolt, which doesn’t throw when the door closes. “Both leaves” means flush bolts, automatic flush bolts or a two point latch on the inactive leaf, depending on the opening.

There’s a specific and widely relevant exception worth knowing, because it goes the other way. Section 709.5 permits cross corridor pairs of opposite swinging doors in Group I-1 Condition 2, Group I-2 and ambulatory care facilities to go unprotected under Section 716, subject to close fitting tolerances, no center mullion, undercuts no greater than 3/4 inch, no louvers or grilles, and head and jamb stops with astragals or rabbets at the meeting edges. Where the door manufacturer’s listing permits, positive latching devices aren’t required on those doors.

If you price healthcare work, that exception is worth more to you than most of this article.

The S on the label doesn’t mean the door ships smoke compliant

This is the detail that quietly costs money, and it’s written plainly in the code.

Section 716.2.9.3 requires smoke and draft control doors complying with UL 1784 to show the letter S on the fire-rating label. Then it says what the marking means: “This marking shall indicate that the door and frame assembly are in compliance where listed or labeled gasketing is installed.”

Where installed. The S isn’t a property of the door as it leaves the plant. It’s a statement that this door and frame, with listed gasketing fitted, will perform. The gasketing is a separate product, a separate line on your takeoff, and a separate installation step.

A door that arrives S labeled with no gasketing on it isn’t a compliant smoke and draft assembly, and it’ll look entirely correct in the opening.

There’s a second distinction in the labeling worth carrying. On a door that’s both fire rated and smoke and draft rated, the S is required and goes on the fire-rating label. On a door complying only with UL 1784, typically a smoke only door in a smoke partition, Section 710.5.2.2.1 says the S is permitted on the manufacturer’s labeling, not required. So the absence of an S doesn’t by itself tell you the opening was priced wrong.

Intumescent and smoke seals are different products doing different jobs

They get used interchangeably in conversation and they aren’t interchangeable in a bid.

Intertek’s fire door categories separate them by function. An applied edge sealing system, their Category G, is intumescent and its job is to minimize the passage of flame; it’s what gets a door its positive pressure rating under UL 10C. Smoke and draft control gasketing, their Category H, is compression or brush gasketing and its job is to minimize the passage of smoke; it’s what delivers the UL 1784 air leakage performance behind the S.

Whether an opening needs intumescent edge sealing is a question about that specific door’s listing rather than about the code. Intertek’s Category A doors have the seal built into the door, concealed under the edgeband or dadoed into the edge, or need none at all. Category B doors require an applied edge sealing system to achieve their rating. Since Section 716.1 requires installation in accordance with NFPA 80, and NFPA 80 requires installation per the listing, a Category B door’s intumescent is required because the listing says so.

No US code section imposes intumescent edge sealing across all fire doors.

Which code edition the job is on changes the answer

Before you rely on any section number, including the ones above, confirm which edition your jurisdiction has adopted.

IBC 2021 references NFPA 80-2019 and NFPA 105-2019. IBC 2024 references NFPA 80-2022 and NFPA 105-2022. The current edition of NFPA 80 is 2025, which means the current standard isn’t the standard most projects are being built to. And the section numbering moved: IBC 2015 used 716.5.x, while 2018, 2021 and 2024 use 716.2.x, so a surprising amount of the guidance online cites numbers that are two cycles stale.

Adoption also varies by state, and states amend. Washington amends Section 716 and adds a state only exception releasing fire doors in Group I-1 Condition 2 dwelling and sleeping units from the self-closing requirement under stated conditions, including 24 hour staffing, NFPA 13 sprinklers, positive latching and interconnected smoke detection. That exception doesn’t exist in the model code.

This is one more reason the rating column can’t answer the question on its own. The same door, in the same wall, can carry a different requirement in two states.

There’s one more reason not to just add the hardware

Field modification of a labeled door is restricted, which turns a hardware addition into a lead time question rather than a line item.

NFPA 80 Section 5.1.4.2.1 requires that preparation of fire door assemblies for locks, latches, hinges, concealed closers, glass lights, vision panels, louvers and astragals be performed in accordance with the manufacturers’ listings and under label service. On the code side, Section 716.2.9.1 requires the label to be applied at the factory or at the location where fabrication and assembly are performed.

Read together, that means hardware prep belongs in a shop under label service, not on a jobsite with a hole saw. If a closer or a seal gets added to a rated opening after the door is on site, somebody has to answer for whether the label survived it.

So the cost of a late addition isn’t the cost of the hardware. It’s the hardware, plus the prep, plus whatever the schedule does when a labeled door has to go back.

Bid it as drawn, or bid it as required

Once you’ve established that something genuinely is missing, there are two defensible positions and your company has probably already picked one.

Fresco co-founder Arvind Veluvali describes the split as a settled fact about the market rather than a question with a right answer. “Some of our customers want to bid the job exactly how it’s going to be executed,” he said in a product demonstration. “Some people would rather come in with the low bid and then make the change in an RFI or a change order later.”

Bidding it as required means your number reflects the opening as it will actually be built. You carry the cost. You’re exposed if a competitor doesn’t carry it, you’re whole if you win, and on a job with forty rated corridor openings missing gasketing that spread against the estimator who left it out is real money rather than a rounding difference.

Bidding it as drawn means your number matches the documents in front of you. You’re competitive, and you’ve moved the cost into a change order you now have to win. That path lives or dies on your qualification language, and on whether the RFI goes out before the bid or after the award. It’s the same arithmetic that widens the spread between bidders on an incomplete set, applied to a set that’s complete and wrong.

The third option is the one most estimators actually use and nobody writes down: bid it as drawn and qualify it explicitly. Price the documents, state in writing that gasketing hasn’t been included on openings where the wall type wasn’t identified, and put the question in an RFI. That keeps your number competitive and keeps the exposure named. The Division 8 Estimator’s Guide covers the qualification and RFI language this depends on in Chapters 8, 10 and 11.

What decides between them is usually not the opening. It’s who you’re bidding to, how the general contractor handles change orders, and whether you’ve been burned by this particular architect before. Software doesn’t make that call for you, and a tool that silently adds code required hardware to your takeoff has made a bidding decision on your behalf. The useful behavior is a flagged suggestion you accept or reject, opening by opening.

What to check before you price a rated opening

Find the wall type before you look at the rating. Gasketing follows the wall, so a rated opening in a corridor or smoke barrier is a different price than the same rated opening in a fire barrier. The partition schedule is usually on a different sheet and often keyed by symbol.

Treat an S label as a line item, not a property. If the opening calls for smoke and draft control, the gasketing is separate material and separate labor. A door can arrive correctly S labeled and still leave your assembly non compliant.

Check whether a closer is actually specified or just assumed. The code requires self-closing, and spring hinges satisfy it. Adding a closer the documents didn’t call for adds cost nobody asked you to carry.

Count the inactive leaves. Every leaf of a rated pair needs an active latch bolt unless a specific exception applies, and the inactive leaf is the one that gets missed on takeoff and discovered at inspection.

Decide the bid posture before you price, not opening by opening. As drawn, as required, or as drawn with written qualification. Picking per opening produces a bid nobody can defend when the RFI comes back.

When this doesn’t apply

If you’re bidding residential work, most of this is beside the point. Rated assemblies in one and two family dwellings are a much shorter list, and the corridor and smoke barrier triggers that drive gasketing in commercial work mostly aren’t in play.

If you self-perform installation and carry the whole opening, the as drawn versus as required decision collapses. You’re going to install what the inspector requires regardless, so the only real question is whether you’ve priced it.

And if your jurisdiction is on an older code edition, or one with significant state amendments, treat the section numbers here as a starting point rather than an answer. The structure of the requirement holds; the numbering and the exceptions may not. Confirm against your adopted edition before you qualify anything in writing.

Key takeaways

• Gasketing on a fire rated opening is triggered by the wall the door sits in, not by the door’s fire rating, which means the rating column on a door schedule can’t tell you whether a seal is required.
• A 20 minute door in a rated corridor carries a gasketing requirement that a 90 minute door in a fire barrier doesn’t.
• The S on a fire-rating label indicates compliance where listed gasketing is installed, so an S labeled door with no gasketing fitted isn’t a compliant smoke and draft assembly.
• The code requires fire doors to be self-closing or automatic-closing and never specifies a closer, so a rated opening scheduled with spring hinges and no closer may be complete as drawn.
• Bidding as drawn with written qualification is a third position between carrying the cost and leaving it out, and it’s the one that keeps the exposure named.

Frequently asked questions

Price the wall, not just the rating. Fresco’s division 8 takeoff software reads the door schedule, the floor plans, the elevations and the 087100 specification against each other and flags the openings where they disagree, which on rated work is where the gasketing question lives.