Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Flush Wood Doors
…78 unchanged lines
- Face, finish, and edge-band samples
- Factory-finish system sample
−default: [Product data (core, face, duty level, listing), Door schedule shop drawings (per opening mark), Face, finish, and edge-band samples]
+default:
+ - "Product data (core, face, duty level, listing)"
+ - "Door schedule shop drawings (per opening mark)"
+ - "Face, finish, and edge-band samples"
```
…40 unchanged lines
## Doors shall comply with the quality grade specified for the project, verified against ANSI/WDMA I.S.1A duty levels or AWI/AWS Quality Grades.
−## The quality grade selected shall be stated explicitly and shall not be left to the manufacturer's discretion.
−
−## WDMA duty levels (Heavy, Standard, Economy) and AWI Quality Grades (Premium, Custom, Economy) are not interchangeable shorthand; AWI Premium Grade flush doors cost two to four times Custom Grade, and specifying Premium without confirming budget is a common over-specification — for most commercial work the project default is AWI Custom Grade solid-core, and for healthcare and education that grade is the baseline minimum. {note}
−
```datasheet
label: Quality grade (AWI / AWS)
…16 unchanged lines
```
+## The quality grade selected shall be stated explicitly and shall not be left to the manufacturer's discretion.
+
+## WDMA duty levels (Heavy, Standard, Economy) and AWI Quality Grades (Premium, Custom, Economy) are not interchangeable shorthand; AWI Premium Grade flush doors cost two to four times Custom Grade, and specifying Premium without confirming budget is a common over-specification — for most commercial work the project default is AWI Custom Grade solid-core, and for healthcare and education that grade is the baseline minimum. {note}
+
## Fire-rated doors shall bear a label from a listing agency acceptable to the Authority Having Jurisdiction, applied at the factory.
…4 unchanged lines
## The Contractor shall confirm whether the AHJ requires positive-pressure (UL 10C / ASTM E2074) listing rather than the older neutral-pressure protocol.
−## Most jurisdictions adopting recent IBC editions require positive-pressure fire-test listing; a door listed only to the older neutral-pressure protocol may be rejected, and confirming the required protocol during submittals avoids a late re-order of the entire rated-door package. {note}
−
```datasheet
label: Fire-test listing protocol required
…6 unchanged lines
```
+## Most jurisdictions adopting recent IBC editions require positive-pressure fire-test listing; a door listed only to the older neutral-pressure protocol may be rejected, and confirming the required protocol during submittals avoids a late re-order of the entire rated-door package. {note}
+
# Environmental and Service Conditions {toc}
…11 unchanged lines
max: 55
step: 5
−setpoints: [30, 50]
+setpoints: [25, 30, 50, 55]
```
…30 unchanged lines
## Door thickness shall be 1-3/4 in. (44 mm) for commercial interior openings unless a different thickness is required by the door's fire listing.
−## The 1-3/4 in. leaf is the 80%-case default for all commercial interior flush doors; the 1-3/8 in. leaf is reserved for light-duty residential and closet openings, and fire-rated leaves must match the labeled assembly thickness exactly since a thickness change re-opens the listing. {note}
−
```datasheet
label: Door thickness
…6 unchanged lines
```
+## The 1-3/4 in. leaf is the default for all commercial interior flush doors; the 1-3/8 in. leaf is reserved for light-duty residential and closet openings, and fire-rated leaves must match the labeled assembly thickness exactly since a thickness change re-opens the listing. {note}
+
## Door width shall be selected per opening, and the clear opening shall satisfy the accessibility requirement at accessible doors.
−## A 34 in. minimum door width with standard hardware is required to deliver the 32 in. clear opening mandated for accessible routes; a nominal 36 in. (3'-0") leaf is the common single-leaf corridor default, and width is per opening and is therefore deferred to the door schedule rather than fixed here. {note}
+## A 34 in. minimum door width with standard hardware is required to deliver the 32 in. clear opening mandated for accessible routes; a nominal 36 in. (3'-0") leaf is the common single-leaf corridor default, and width is per opening and is therefore deferred to the door schedule rather than fixed here.
```datasheet
…34 unchanged lines
## Each door shall be furnished with the face material specified, and for transparent-finish doors the veneer species, cut, and match shall all be stated.
−## Omitting species, cut (rotary, plain-sliced, quarter-sliced), or match is a leading cause of substitution disputes and mismatched door sets, because the manufacturer will otherwise supply the most economical compliant veneer; the three together define the appearance and none can be left implied. {note}
−
```datasheet
label: Face material
…6 unchanged lines
```
+## Omitting species, cut (rotary, plain-sliced, quarter-sliced), or match is a leading cause of substitution disputes and mismatched door sets, because the manufacturer will otherwise supply the most economical compliant veneer; the three together define the appearance and none can be left implied. {note}
+
## Transparent-finish veneer faces shall comply with the HPVA HP-1 face grade specified, and the default face grade for premium transparent work shall be Grade A.
−## HPVA face grades run from Grade A (virtually defect-free) through Grade B and Grade C to Backing grade; Grade A is the premium transparent-finish default, lower grades admit more color and figure variation, and face grade is referenced within both WDMA I.S.1A and AWI/AWS so it travels with the quality grade. {note}
−
```datasheet
label: Veneer face grade (HPVA HP-1, transparent finish)
…6 unchanged lines
```
+## HPVA face grades run from Grade A (virtually defect-free) through Grade B and Grade C to Backing grade; Grade A is the premium transparent-finish default, lower grades admit more color and figure variation, and face grade is referenced within both WDMA I.S.1A and AWI/AWS so it travels with the quality grade. {note}
+
## Face veneer for slice-cut transparent doors shall be a minimum of 1/42 in. (0.6 mm) thick per ANSI/WDMA I.S.1A.
## Veneer leaf matching within a single door shall be the match type specified.
−## Book match alternates adjacent veneer leaves like pages, slip match repeats them in the same orientation, and running match uses leaves in sequence without balancing; the choice is aesthetic but must be stated, and book-match veneer typically carries a 10% to 20% premium over running match. {note}
+## Book match alternates adjacent veneer leaves like pages, slip match repeats them in the same orientation, and running match uses leaves in sequence without balancing; the choice is aesthetic but must be stated, and book-match veneer typically carries a 10% to 20% premium over running match.
```datasheet
…9 unchanged lines
## Where doors occur in pairs or sets, the panel-match type for the opening shall be specified.
−## Pair and set matching (balance match, center-balance match, or running match across leaves) governs how grain reads across adjacent leaves of one opening; specifying a within-leaf match without also specifying the across-leaf panel match leaves pairs visibly mismatched. {note}
−
```datasheet
label: Pair / set panel match (across an opening)
…6 unchanged lines
```
+## Pair and set matching (balance match, center-balance match, or running match across leaves) governs how grain reads across adjacent leaves of one opening; specifying a within-leaf match without also specifying the across-leaf panel match leaves pairs visibly mismatched. {note}
+
## Where veneer matching is required to read continuously across multiple openings, the doors shall be sequenced from the same flitch and identified for sequenced installation.
−## A book or balance match specified across multiple-leaf openings is meaningless unless the leaves are cut from one flitch and installed in order; sequenced matching is a separate, more costly requirement and must be called out explicitly, with the leaves marked for their installed location. {note}
+## A book or balance match specified across multiple-leaf openings is meaningless unless the leaves are cut from one flitch and installed in order; sequenced matching is a separate, more costly requirement and must be called out explicitly, with the leaves marked for their installed location.
```datasheet
…8 unchanged lines
## Edge banding shall be the type and material specified, compatible with the face material and finish.
−## Edges may be solid wood (stile-applied or applied band), HPL-banded to match an HPL face, or MDF for opaque doors; solid wood edges on veneer doors allow site trimming and refinishing, HPL edges resist abrasion, and the edge type must suit both the face and the amount of field fitting expected. {note}
−
```datasheet
label: Vertical edge (stile) band
…6 unchanged lines
```
+## Edges may be solid wood (stile-applied or applied band), HPL-banded to match an HPL face, or MDF for opaque doors; solid wood edges on veneer doors allow site trimming and refinishing, HPL edges resist abrasion, and the edge type must suit both the face and the amount of field fitting expected. {note}
+
# Fire Rating {toc}
## Each door at a rated opening shall carry the fire-protection rating required for that opening by IBC Section 716 for the wall type and occupancy.
−## IBC Table 716.1 (and the corresponding NFPA 101 provisions) set the required opening-protective rating from the rated wall and occupancy: roughly 20-minute at corridor walls, 3/4-hour (45-minute) at 1-hour-rated walls, 1-hour at certain separations, and 1-1/2-hour at 2-hour walls; flush wood doors are commonly used at 45-minute and below, and specifying the wrong rating is a frequent design-phase error. {note}
−
```datasheet
label: Fire-protection rating
…9 unchanged lines
```
+## IBC Table 716.1 (and the corresponding NFPA 101 provisions) set the required opening-protective rating from the rated wall and occupancy: roughly 20-minute at corridor walls, 3/4-hour (45-minute) at 1-hour-rated walls, 1-hour at certain separations, and 1-1/2-hour at 2-hour walls; flush wood doors are commonly used at 45-minute and below, and specifying the wrong rating is a frequent design-phase error. {note}
+
## Glazed lite area in rated doors shall not exceed the area permitted by the door's listing and by NFPA 80 for the specified rating.
…31 unchanged lines
## Each door shall be delivered with the finish state specified: unfinished for field finishing, factory-primed, or completely factory-finished.
−## Factory finishing (catalytic lacquer, conversion varnish, or UV-cured systems) is increasingly the institutional norm because it removes field-finishing odor, schedule, and quality-control risk; for healthcare and education complete factory finish is the practical default, and field finishing remains acceptable where the project accepts the schedule and air-quality tradeoffs. {note}
−
```datasheet
label: Finish state at delivery
…6 unchanged lines
```
+## Factory finishing (catalytic lacquer, conversion varnish, or UV-cured systems) is increasingly the institutional norm because it removes field-finishing odor, schedule, and quality-control risk; for healthcare and education complete factory finish is the practical default, and field finishing remains acceptable where the project accepts the schedule and air-quality tradeoffs. {note}
+
## For opaque (painted) doors, the paint system, number of coats, and sheen level shall be specified rather than left to the manufacturer.
−## Factory opaque finishes vary widely in film build, durability, and VOC content; specifying only "opaque finish" produces inconsistent results between suppliers, and the system, coats, and sheen should be stated with VOC limits confirmed against the project's sustainability or local air-quality requirements. {note}
−
```datasheet
label: Opaque finish sheen
…7 unchanged lines
```
+## Factory opaque finishes vary widely in film build, durability, and VOC content; specifying only "opaque finish" produces inconsistent results between suppliers, and the system, coats, and sheen should be stated with VOC limits confirmed against the project's sustainability or local air-quality requirements. {note}
+
## Factory-applied finishes shall comply with the VOC content limit applicable to the project.
−## Where the project follows a green-building rating system or a local low-VOC ordinance, the factory finish must meet the governing VOC ceiling; this is confirmed during submittals so a compliant system is selected before the doors are finished, not after. {note}
+## Where the project follows a green-building rating system or a local low-VOC ordinance, the factory finish must meet the governing VOC ceiling; this is confirmed during submittals so a compliant system is selected before the doors are finished, not after.
```datasheet
…4 unchanged lines
max: 350
step: 25
−setpoints: [50, 250]
+setpoints: [50, 250, 350]
```
…2 unchanged lines
## Doors shall be factory pre-machined for all hardware preparations indicated on the hardware schedule, including locksets, closers, hinges, viewers, and electrical preps.
−## Factory machining to the listed bolt patterns is required for rated doors and strongly preferred for all doors, because it is accurate, label-safe, and avoids field-cutting damage; pre-machining locations and patterns must be specified and confirmed against the hardware schedule before fabrication, or field cuts and RFIs follow. {note}
−
```datasheet
label: Hardware preparation
…5 unchanged lines
```
+## Factory machining to the listed bolt patterns is required for rated doors and strongly preferred for all doors, because it is accurate, label-safe, and avoids field-cutting damage; pre-machining locations and patterns must be specified and confirmed against the hardware schedule before fabrication, or field cuts and RFIs follow. {note}
+
## Hollow-core doors shall be furnished with continuous wood blocking at lockset, closer, and hinge locations.
…2 unchanged lines
## Blocking locations for special hardware, continuous push/pull, Dutch doors, and anticipated future hardware shall be specified in the door schedule.
−## Oversized and custom doors with non-standard hardware, hospital push/pull plates, or future signage and viewers need blocking placed during fabrication; omitting the blocking layout leads to RFIs when the Owner adds hardware after fabrication, when the leaf can no longer be opened up to add a core. {note}
−
```datasheet
label: Blocking
…8 unchanged lines
```
+## Oversized and custom doors with non-standard hardware, hospital push/pull plates, or future signage and viewers need blocking placed during fabrication; omitting the blocking layout leads to RFIs when the Owner adds hardware after fabrication, when the leaf can no longer be opened up to add a core. {note}
+
# Testing {toc}
…35 unchanged lines
## Field cutting of doors shall be limited to the manufacturer's permitted trim allowance, and rated doors shall not be field-cut beyond their listed tolerance.
−## Trimming beyond the allowance exposes the core, unbalances the leaf, and on rated doors voids the label; where a leaf will not fit within the trim allowance the door is the wrong size and must be re-ordered, not forced. {note}
+## Trimming beyond the allowance exposes the core, unbalances the leaf, and on rated doors voids the label; where a leaf will not fit within the trim allowance the door is the wrong size and must be re-ordered, not forced.
## Installed doors shall be adjusted, and any damaged or warped leaf shall be replaced rather than repaired in the field.
…17 unchanged lines
## Each door shall be sealed on all edges, including the top and bottom rails, before or promptly after installation.
−## Unsealed top and bottom edges absorb moisture and are the most common path to field warp and edge swelling; sealing all six surfaces, including the often-overlooked top and bottom, is required to honor the flatness warranty. {note}
+## Unsealed top and bottom edges absorb moisture and are the most common path to field warp and edge swelling; sealing all six surfaces, including the often-overlooked top and bottom, is required to honor the flatness warranty.
# Warranty {toc}
…19 unchanged lines
## The Contractor shall furnish spare doors as attic stock where the Owner requires replacement leaves to be held on site.
−## For projects with many identical openings, a small attic stock of finished, matched doors lets the Owner replace a damaged leaf without re-ordering and re-matching, which is especially valuable for transparent-finish sets where later doors may not match the original flitch. {note}
−
```datasheet
label: Attic stock (spare finished doors)
…5 unchanged lines
setpoints: [0, 2]
```
+
+## For projects with many identical openings, a small attic stock of finished, matched doors lets the Owner replace a damaged leaf without re-ordering and re-matching, which is especially valuable for transparent-finish sets where later doors may not match the original flitch. {note}