Lead Lined Wood Door Spec 08 34 40

SECTION 08 34 40

LEAD-LINED WOOD DOORS

GUIDE SPECIFICATION - 2026

NOTE TO SPECIFIER: This section is written in CSI three-part format for lead-lined flush wood doors used in radiation shielding assemblies. Edit bracketed requirements to coordinate with Drawings, door schedule, hardware schedule, frame requirements, fire ratings, glazing requirements, and the project radiation shielding report prepared by the qualified health or medical physicist.

This section is based on products of Lead Glass Pro, located at:

1968 South Coast Highway

Laguna Beach, CA 92651-3681

Toll Free: (800) 506-9972

Email: sales@leadglasspro.com

Web: https://www.leadglasspro.com

Lead Glass Pro manufactures radiation shielding products including lead-lined wood doors, lead-lined hollow metal doors and frames, leaded X-ray glass, lead-lined view window frames, and related radiation shielding accessories.

Part 1 - General

Section Includes

Lead-lined flush wood doors for radiation shielding openings.

Lead lining, wood cores, edges, rails, face veneers or facings, and accessories required for complete lead-lined wood doors.

Coordination with radiation protective frames, hardware preparations, and vision lite glazing where indicated.

Related Sections

Section 08 11 13 - Hollow Metal Doors and Frames.

Section 08 14 00 - Wood Doors.

Section 08 71 00 - Door Hardware.

Section 08 80 00 - Glazing.

Section 08 88 60 - X-Ray Lead Glass.

Section 13 49 00 - Radiation Protection.

References

American National Standards Institute (ANSI):

ANSI A208.1 - Particleboard.

Architectural Woodwork Institute (AWI):

Architectural Woodwork Standards; requirements for flush wood doors and architectural woodwork quality.

ASTM International (ASTM):

ASTM E152 - Methods of Fire Tests of Door Assemblies.

Federal Specifications:

QQ-L-201F, Grade C - Lead Sheet, 99.9 percent pure.

National Council on Radiation Protection and Measurements (NCRP):

NCRP Report No. 49 - Structural Shielding Design and Evaluation for Medical Use of X-Rays and Gamma Rays of Energies up to 10 MeV.

NCRP Report No. 147 - Structural Shielding Design for Medical X-Ray Imaging Facilities.

National Electrical Manufacturers Association (NEMA):

NEMA LD 3 - High Pressure Decorative Laminates.

National Woodwork Manufacturers Association (NWMA):

NWMA I.S. 1 - Industry Standard for Wood Flush Doors.

Comply with local radiation safety regulations and requirements of authorities having jurisdiction where more stringent than references listed above.

Definitions

Lead Equivalence: Thickness of lead that provides the required radiation attenuation under specified conditions.

Radiation Shielding Report: Project-specific shielding report prepared by a qualified health or medical physicist, indicating required lead thickness and shielding configuration for doors, frames, glazing, hardware preparations, and adjacent assemblies.

Performance Requirements

Provide lead-lined wood doors with lead thickness not less than indicated on Drawings and required by the project radiation shielding report.

Provide lead lining in doors with lead thickness equal to or greater than the lead shielding in the partition or wall assembly in which each door occurs, unless otherwise indicated.

Maintain continuity of radiation protection at door edges, hardware cutouts, vision lite openings, glazing stops, frame interfaces, and adjacent lead-lined assemblies.

Provide doors manufactured to applicable national woodwork standards using cores, edging, rails, and face materials suitable for the scheduled finish and performance requirements.

Submittals

Product Data: Submit manufacturer's printed technical data for lead-lined wood doors, lead lining, cores, edge construction, rails, facings, finish options, handling instructions, and installation recommendations.

Shop Drawings: Indicate door sizes, thicknesses, handing, lead thickness, lead location, edge construction, rail construction, hardware preparations, vision lite openings, glazing stops, frame coordination, and fire ratings where required.

Radiation Shielding Coordination: Submit documentation verifying that proposed door lead thickness and details comply with the project radiation shielding report.

Door Schedule Coordination: Coordinate submittals with door schedule, frame schedule, hardware schedule, and glazing requirements.

Certificates of Compliance: Submit manufacturer's certificate stating that lead-lined wood doors furnished for the Project comply with this Section, the Drawings, and the project radiation shielding report.

Insurance Documentation: When requested, submit evidence that manufacturer is insured for fabrication of X-ray protection and radiation shielding materials.

Quality Assurance

Manufacturer Qualifications: Manufacturer regularly engaged in production of lead-lined wood doors and radiation shielding materials of type specified.

Installer Qualifications: Installer experienced in installation of wood doors, radiation protective doors, and related hardware and frame coordination.

Single Source Responsibility: Provide lead-lined wood doors and radiation shielding accessories produced as standard products of Lead Glass Pro.

Regulatory Requirements: Comply with applicable building codes, radiation safety standards, and requirements of authorities having jurisdiction.

Coordination: Coordinate door thickness, door weight, hinges, closers, hardware reinforcements, frame construction, wall shielding, and glazing before fabrication.

Delivery, Storage, and Handling

Deliver doors in manufacturer's original protective packaging with labels intact and legible.

Handle doors carefully to prevent warpage, delamination, edge damage, finish damage, and deformation.

Store doors flat, indoors, and protected from moisture, direct sunlight, temperature extremes, and construction traffic.

Keep doors flat until ready for installation. Do not store in the sun or in areas where moisture is present.

Project Conditions

Field Measurements: Verify actual frame openings and conditions before fabrication where field dimensions are required.

Environmental Conditions: Install doors only after building is enclosed, wet work is complete, and temperature and humidity conditions are suitable for wood door installation.

Part 2 - Products

Manufacturers

Approved Manufacturer: Lead Glass Pro, 1968 South Coast Highway, Laguna Beach, CA 92651-3681; Toll Free: (800) 506-9972; Email: sales@leadglasspro.com; Web: https://www.leadglasspro.com.

Substitutions: Not permitted unless approved in writing by Architect, Owner, and project radiation physicist of record, and unless proposed materials demonstrate equal radiation shielding performance, door construction quality, frame and hardware compatibility, and fire-rating compliance where required.

Lead-Lined Wood Doors

Basis of Design: Lead-Lined Wood Doors, as manufactured and supplied by Lead Glass Pro.

Construction: Flush solid-core wood door with one or more continuous, unpierced layers of sheet lead laminated within door construction to provide required radiation shielding.

Lead Location: Provide sheet lead in center of door or as otherwise engineered by manufacturer to maintain required shielding continuity.

Door Thickness: 1-3/4 inches (45 mm), unless otherwise indicated. Increased lead thickness may increase overall door thickness; coordinate with frames and hardware.

Sizes: Width and height as indicated on Door Schedule.

Core: 28 pound density particleboard core meeting CS 236-66, Type 1, Density C, Class 1, unless otherwise indicated.

Lead Sheet: 99.9 percent pure sheet lead complying with Federal Specification QQ-L-201F, Grade C.

Lead Thickness: Provide thickness indicated on Drawings and required by the project radiation shielding report; thickness must be equal to or greater than lead shielding in surrounding partition unless otherwise indicated.

Vertical Edges: Minimum 1-1/4 inch (32 mm) wide two-ply edge strips adhered to core; extend full height of door.

Top and Bottom Rails: Minimum 2-1/2 inch (64 mm) wide three-ply edge strips adhered to core.

Faces: Paint-grade hardboard, wood veneer, plastic laminate, or other scheduled facing as indicated.

Face Veneer: Species, cut, match, and grade as specified for Project or indicated on Door Schedule.

Vision Lites and Glazing Stops

Provide vision lite openings only where indicated on Door Schedule and approved by the project radiation physicist of record.

Glazing: Provide radiation shielding X-ray lead glass with lead equivalence not less than required for the door and surrounding assembly.

Glazing Stops: Hardwood stops of same species as face veneer or as otherwise scheduled; secure stops with wood screws.

Maintain radiation shielding continuity at lite kits, glazing stops, and cut edges.

Hardware Preparation

Factory-machine doors for scheduled hardware to the extent practicable.

Coordinate hardware locations, reinforcement, hinge quantity, hinge size, closers, and operators with increased door weight resulting from lead lining.

Line covers, escutcheons, plates, and hardware cutouts where required to maintain effective radiation shielding at penetrations and prepared openings.

Fabrication

Fabricate doors square, flat, and free from defects that impair appearance, operation, finish, or radiation shielding performance.

Laminate wood cores and facings under hydraulic pressure on each side of sheet lead.

Extend lead lining to door edges to provide X-ray absorption equivalent to adjacent partition or wall assembly.

Fabricate doors to fit scheduled frames with uniform clearances required for proper operation and applicable codes.

Part 3 - Execution

Examination

Examine frames, openings, supports, hardware preparations, and adjacent construction for conditions affecting installation, operation, or radiation shielding continuity.

Verify frames are accurately set, plumb, level, square, rigid, and properly lead-lined before installing lead-lined wood doors.

Do not proceed with installation until unsatisfactory conditions have been corrected.

Installation

Install lead-lined wood doors in accordance with manufacturer's written instructions, approved shop drawings, Door Schedule, hardware requirements, and the project radiation shielding report.

Install doors level and plumb, aligned with frames, and with uniform clearances at heads, jambs, and meeting edges.

Coordinate installation with radiation protective frames. Maintain radiation shielding continuity between doors, frames, walls, and hardware preparations.

Install hinges, pivots, closers, operators, and related hardware suitable for door weight and required operation.

Protect lead-lined doors from field cuts, penetrations, or modifications not approved by manufacturer and project radiation physicist of record.

Where field fitting is required, do not cut into lead lining or reduce radiation shielding continuity.

Field Quality Control

Manufacturer Certification: Upon completion of material supply, manufacturer shall furnish certificate of compliance stating that materials are in accordance with this Section and the project radiation shielding report.

Radiation Shielding Testing: When required, test radiation shielding after X-ray equipment has been installed and placed in operating condition and before occupancy and use.

Correct deficiencies in radiation shielding Work identified by inspection or testing.

Adjusting

Check and readjust operating hardware, leaving doors and frames undamaged and in proper operating condition.

Adjust doors for smooth, balanced, quiet operation without binding, scraping, or excessive clearance.

Cleaning

Remove excess materials and debris from site.

Clean exposed door surfaces in accordance with manufacturer's recommendations.

Leave exposed surfaces ready for specified finishing or final acceptance.

Protection

Protect installed doors from damage by construction operations until Substantial Completion.

Limit unapproved access to radiation-protected rooms after door hardware is installed.

Replace damaged doors or components that compromise appearance, operation, fire rating, or radiation shielding continuity.

End of Section