TERMS & CONDITIONS

HOME

INTERIOR DOOR STYLES

CONSERVATION & HERITAGE

COMMERCIAL

SPECIFICATION

HARDWOODS

DOOR FURNITURE

JOINERY

GLAZING

TIMBER & FINISHES

PERFORMANCE
CHARACTERISTICS

CARE FOR TIMBER DOORS

COMPANY POLICIES

CASE STUDIES

DOORSET GALLERY

home » door styles » The Modern Collection » technical »

Technical

Door Construction

Flat Panel Doors

The flat panels are manufactured from high performance materials, selected to suit particular applications.

They are tongued into grooves within the framings and are typically 13mm thick for FD30 doors.

These dimensions represent the minimum needed to achieve fire resistance but other panel thicknesses can be supplied.

Application:

Plaza
Strand
Eltham
Metro
Lexington
Clinton
Orient
Broadway
Rio
Napier
Astoria

Raised and Fielded Panel Doors

Charateristically raised and fielded panels are constructed from solid timber. The panels are tongued into grooves within the framings and are typically 32mm thick for non-rated and FD30 doors.

Application:

Century

Door Components

Table of Door Components

Both raised and fielded panel and flat panel doors are constructed with solid timber stiles, rails and muntins. All main joints are through mortice and tenon, wedged joints bonded for maximum durability.

	Square Shoulder		Splay		Ovolo
	Overall width	Flat width	Overall width	Flat width	Overall width	Flat width
Top rail and stiles	108	N/A	108	102	108	95
Muntin	92	N/A	92	80	92	66
Bottom rail	216	N/A	216	210	216	203

Profile Moulds


Applied Mouldings

Frames

Overview

The Longden Moderne door set frames below can be manufactured from the same solid timber as the door leaves. Generally they are manufactured to the sections shown but alternative designs incorporating mouldings can be accommodated.

Extension Lining

Extension lining can be used to extend the width of the frame to fill the reveal.
Alternatively, Longden can supply reveal panelling to complement doors and other joinery.

Performance Characteristics

The Moderne door designs are able to meet the performance characteristics as indicated in the table below.
*Note: Higher acoustic levels may be available, please contact Longden on 0114 270 6330 to discuss your project requirements at design stage.

Door design	Fire Resistance (Performance to BS476 Part 22)	Thickness (mm)	Smoke Control	Sound Reduction Acoustic Seals*
Plaza	Non-rated / FD30	45	Yes / No	30 RwdB
Strand	Non-rated / FD30	45	Yes / No	30 RwdB
Eltham	Non-rated / FD30	45	Yes / No	30 RwdB
Metro	Non-rated / FD30	50	Yes / No	30 RwdB
Lexington	Non-rated / FD30	50	Yes / No	30 RwdB
Clinton	Non-rated / FD30	50	Yes / No	30 RwdB
Orient	Non-rated / FD30	50	Yes / No	30 RwdB
Broadway	Non-rated / FD30	45	Yes / No	30 RwdB
Rio	Non-rated / FD30	50	Yes / No	30 RwdB
Napier	Non-rated / FD30	50	Yes / No	30 RwdB
Astoria	Non-rated / FD30	50	Yes / No	30 RwdB
Century	Non-rated / FD30	45	Yes / No	30 RwdB

.....................................................................................................................................................................................................................................