SECTION 08250
PREASSEMBLED WOOD DOOR AND FRAMES
PART 1 – GENERAL
1.1SUMMARY
A.Work included in this section: Prehung interior wood door and frame units.
B.Related work specified elsewhere:
1.Door finishing.
2.Finish hardware, except as specified herein.
1.2SUBMITTALS:
A.Shop drawings: Submit schedules, elevation and frame details indicating door sizes, swing, fire rating, undercut and hardware locations.
B.Product data: Indicate that doors and frames meet specified requirements. Indicate materials, construction, finishes and installation instructions for pre-hung units.
C.Samples: Submit one of each type door and frame assembly and 1’-0” by 1’-0” door corner samples indicating construction for each door type. Full size units will be available to Contractor for use in the construction following approval by Architect.
1.3DELIVERY, STORAGE AND HANDLING:
A.Deliver no doors to building until weatherproof storage space is available. Store doors in a space having controlled temperature and humidity.
B.Stack bi-fold doors flat, off of floor supported to prevent warpage. Protect from damage and direct exposure to sunlight.
C.Store prehung doors upright, off of floor and supported to prevent warpage. Protect from damage and direct exposure to sunlight.
D.Seal edges of wood doors immediately after delivery, unless factory sealed.
E.Provide corrugated car card, polyethylene foam or heavy polyethylene sheet protection between stacked individual doors and for door faces in contact with other surfaces. Cover stacked doors with polyethylene.
F.Do not walk or stack other materials on top of stacked doors, do not drag doors across one another.
1.4QUALITY ASSURANCE:
A.Allowable door tolerances:
1.Overall dimension: +/- 1/16”.
2.Maximum warp, bow, cup or twist: 1/4".
3.Squareness: Maximum 1/8” difference in diagonal measurement.
B.Allowable door assembly and installation tolerances:
1.Variation from specified clearances: +1/32”, -0.
2.Maximum variation in edge alignment, pairs of doors: 1/16”.
C.Other tolerances shall be as specified in NWWDA reference standards.
D.Applicable standards:
1.Standards of the following, as listed or referenced herein:
a.American Hardboard Association (AHA).
b.American National Standards Institute (ANSI).
c.National Wood Window and Door Association (NWWDA).
d.Architectural Woodwork Institute (AWI), “Architectural Woodwork Quality Standards, Guide Specifications and Quality Certification Program,” Sixth Edition, 1996, herein referred to as AWI Standards.
e.Underwriter’s Laboratories, Inc. (UL).
f.Warnock Hersey International (WHI).
E.Labels:
1.Provide each door with a label, which identifies manufacturer, trade association of which he is a member, grade and type of door or industry standard with which it complies.
2.Fire-rated doors and frames shall be label of testing and approval by Underwriters Laboratories (UL), Warnock Hersey International, Inc. (WHI), or other acceptable independent Testing Agency; doors and frames having been tested in accord with NFPA 252-1990 for 20-minute Label, provide each fire-rated door and frame with a label permanently attached to hinge stile, showing fire rating.
1.5WARRANTIES:
A.Provide manufacturer’s door replacement warranty against warpage, delamination and manufacturing defect for two years.
1.6SUPPLIER:
A.Supplier recommended for consideration:
BSH
1802 E. 123rd Terrace
Olathe, Kansas 66061
(913) 764-2322
(913) 764-6599 (FAX)
Contact: Jerry Pennington
PART 2 – GENERAL
2.1MANUFACTURERS:
A.Products of the following manufacturers, provided they comply with requirements of the contract documents, will be among those considered acceptable:
1.Ampco Products, Inc.
2.Buell Door Company.
3.Fenestra Corporation.
4.Mohawk Flush Doors, Inc.
5.Weyerhaeuser Company.
6.Jeldwen.
7.Masonite Corporation.
8.Or equivalent, approved by Architect.
2.2INTERIOR PANEL DOORS:
A.Characteristics:
1.Type: Hollow core with hardboard faces.
2.Standard: ANSI/NWWDA I.S.1-87 Series, and as further specified herein.
3.Thickness:
a.Standard interior doors: 1-3/8”.
4.Face panels: 1/8” thickness, single piece hardboard interior grade, panels as further specified.
5.Core:
a.Standard interior doors: Manufacturer’s standard mesh or cellular core.
6.Stiles, rails and blocking: Solid stock wood.
7.Adhesives: Type II or better.
8.Prefitting: Prefit and prepare for specified hardware. Prehang in jambs further specified.
9.Finish: Shop prime all faces and edges. Prime panel doors prior to prehanging.
B.Manufacturer: Masonite Corporation, Colonist Textured Design, six panel die formed with woodgrain embossing.
C.Door Finish:
1.Interior unit doors: Paint to match adjacent walls.
2.3WOOD JAMBS:
A.Material:
1.Frame and trim: Solid stock wood, finger jointed to meet the requirements of AWI Grade I, for opaque finish, or NWWDA I.S.6.91, Standard Grade.
2.Trim profile: As indicated on drawings.
3.Hinges: Minimum 3-1/2” by 3-1/2” with removable pin, satin brass finish to match lockset finish as specified in Finish Hardware section.
B.Fabrication: Split jamb design, meeting AWI reference standard, Custom Grade for Opaque Finish.
1.Frame depth: Match wall thickness.
2.Frame shall be completely assembled and door mounted in frame within specified tolerances.
3.Shim door brace frame to maintain tolerances during shipping and erection.
2.4FACTORY FITTING MACHINING AND HANGING:
A.Factory machining is required for all wood and panel doors.
B.Prefitting and premachining:
1.Factory prefit and machine doors to clearances and bevels specified.
2.Prepare for hardware installation using hardware manufacturer’s templates. Locate in accord with ANSI/NWWDA I.S. 1-A-93, unless otherwise indicated.
3.Protect door faces from damage during cutting.
C.Clearances and bevel:
1.Hinge stile: 1/8”.
2.Lock stile: 1/8”.
3.Top: 1/8”.
4.Bottom: 1/4" above floor finish or threshold, except where undercutting is indicated. Confirm installed floor covering thickness before cutting door bottom edges.
5.Meeting stiles, pairs of doors: 1/8”.
6.Bevel: 1/8” in 2”.
D.Fit doors for width by planning equally from both stiles; for height by sawing not more than 1/4" from each top and bottom rail.
E.Following cutting or planning, sand sharp corners and edges smooth.
F.Hardware installation:
1.Install doors on hinges using threaded-to-the-head wood screws furnished by hardware manufacturer.
2.Drill pilot holes for all screws.
3.Securely anchor hardware in correct position and alignment.
G.Fitting: Shim frames to specified clearances and attach bracing to maintain door/frame alignment until unit is installed.
PART 3 – EXECUTION
3.1INSTALLATION:
A.Prehung door units: Install door/frame assembly in accord with fabricator’s product data and printed instructions.
1.Install units where possible without removing temporary bracing. Reshim doors to maintain specified door/frame clearances where bracing is removed.
2.Level and align door and shim unit to rough opening. Attach split jamb to structure using casing nails or trim head screws so that and heads will be concealed behind stop of other jamb half.
3.Re-check door unit level and clearances, and anchor frame molding to structure with finish nails or trim head screws, anchor heads countersunk and filled.
4.Installation shall comply with AWI Custom Grade interior Millwork requirements.
5.Doors shall operate freely, within specified clearances.
B.Fire-rated door units: Install in accord with UL or WHI requirements, and NFPA No. 80 and No. 105.
C.Replace doors with defect in material, finish, fit or machining.
END OF SECTION
08250 - 1LK 00000