Get offer

NEXT SD 23 double-wing security door

Protection of your existing double-wing door provided by the NEXT SD 23 add-on security door mounted on the interior side of your original door. This completely inconspicuous door renovation is much more than a separate additional security lock or deadbolt. The door is secured in all critical places such as hinges, the lock, doorframe and door surface. This is the most affordable security solution for buildings subject to historical preservation requirements. The NEXT SD 23 can be installed on doors with metal or wooden doorframes.

DETAILS OF DOOR

Door Surfaces

Door surfaces form the character of the entire house or interior. You can choose veneer, laminate, wooden surfaces or varnished in a wide RAL range.

15 locking points

The fixed wing has six locking points and the moveable wing has nine. No door repair or renovation can achieve such a result.

Anchoring beam

The solid security beam is anchored directly in the panel or wall and serves for embedding the casing for the upper additional hinge and upper locking pins.

Upper locking-pin casing

The upper pins lock into the casing held in place by the security bar above the door, which doubles the original doorframe. The additional lock controls the upper pins.

Locking-pin casing in floor

The additional lock also controls the lower pins, which lock into a casing set in concrete in the floor.

Always custom manufactured

The door has a steel frame with ribbing and full-area armouring

Sound and thermal insulation improves these parameters of your original door

Protection of the area around the lock is reinforced with additional sheet-metal

Selection of surface materials including numerous types of artificial leather, laminate and veneer

The additional lock controls locking points on three sides

NEXT SD 23 double-wing security door

Bezpečnostní certifikáty

tt_119_2016_certifikat_shody_sd3_sd23_platnost_od_19_4_2016_do_19_4_2019.pdf.pdf

Leaflets (cz documents)

bp_sd3_cz.pdf.pdf

Price list (cz documents)

cenik_sd_2024.pdf.pdf

cenik_sd_2024_eur.pdf.pdf

Comparison table of security doors

TYPE	SD 101	SD 111	SD101 (2015)	SD 102	SD 121	SD 102D	SD 104
Recommended usage	The bestselling entry doors for apartments	For outward opening from a protected space	Zabezpečení bytových dveří větších rozměrů	The most robust entry door for houses in this category on the market	the highest requirements for security and thermal insulation	The most robust double-wing entry door in this category on the market	Represents a completely new generation of concealed security doors in concealed security doorframes
Suitable door hardware	the original a metal or SF1	the original a metal or SF1	SF1	SF2A	SF2A	SF2A	SF4
Security class (ENV 1627) for opening to inwards	BT 3	BT 4	RC 3	BT 3	BT 4	BT 3	RC 3
Security class (ENV 1627) for opening outwards	-	BT 3	-	-	-	-	RC 3
Fire resistance (označení F)	EI 30, EW 30		EI 30, EW 30	EI 45, EW 45	EI 30, EW 30	EI 30, EW 30	EI 45, EW 60
Thermal resistance	R = 0,32	R = 0,32	R = 0,32	R = 0,5	R = 0,55	R = 0,55	R = 0,54
Heat transfer coefficient	U = 2,0	U = 2,0	U = 2,0	U = 1,4	U = 1,4	U = 1,4	U = 1,4
Acoustic attenuation	Rw 33-39dB	Rw 33-39dB	Rw 36dB	Rw 33-42dB	Rw 33-42dB	Rw 33-42dB	Rw 38dB
Smoke resistance Sm, Sa	Yes	Yes	No	Yes	No	No	No
Air permeability	2	2	4	4	4	4	4
Water tightness	1A	1A	X	1A	1A	1A	3A
Resistance to wind load	1	1	C4	3	3	3	C5
Standard dimensions of door	bespoke	bespoke	bespoke	(800, 900) x (1970, 2100, 2200)		bespoke	(800, 900) x (1970, 2100, 2200)
Maximum dimensions of door (with security certificates)	1100x2100	1100x2100	1100x2100	1000x2500	1100x2200	2200x2500	1100x2540
Maximální rozměr křídla (with security certificates and fire resistance)	900x1970	900x1970	900x2200	900x2400	-	2070x2415	900x2200
Door thickness (mm)	42	42	42	74	74	74	70
Weight (kg)	70	82	78	95	115	approx. 150	95
Interior surface	laminate, veneer, H-dex, solid wood			veneer, solid wood, H-dex
Exterior surface	laminate, veneer, H-dex, solid wood			veneer, solid wood, H-dex
Interior surface for use	H-dex			solid wood, H-dex
Number of locking points	17	21	17	19	23	34	18
TYPE	SD 101	SD 111	SD101 (2015)	SD 102	SD 121	SD 102D	SD 104

The Company NEXT, s.r.o. reserves the right to change of the products. Colours of samples and specifications in the catalog and on the website www.next.cz need not agree with reality.

NEXT SD 23 double-wing security door - Gallery

NEXT SD 23 double-wing security door - Accessories

Door hardware

Security hardware R1

(knob + lever or handle + lever) chrome, TiN gold, powder coated

Security lock cylinders

Evva EPS

Security class 4, 6 active detection elements

Evva ICS

Security class 4, protection against copying of keys

Evva 3KS

Security class 4, functionality of springless tumblers

NEXT CPS

Security class 3, standard security lock cylinders

Hi-tech security systems

Fingerprint reader

In combination with a motorised lock cylinder, a fingerprint reader makes it possible to unlock a door without using a key.

Digital door view — with recording function

New, innovative door viewer with recording function — easy installation

EMZY – motorised lock cylinder

A special cylinder that can be operated with a key or electronically

Other accessories

Chain SK 66

High-quality door chain with child safety catch

Panoramatic door viewer

can be mounted in doors with thickness of 35-63 mm

Door stoppers

Door stoppers are used relatively rarely, even though they are very useful items.

Door closers

for exterior and interior doors with maximum weight of 120 kg

The Company NEXT, s.r.o. reserves the right to change of the products. Colours of samples and specifications in the catalog and on the website www.next.cz need not agree with reality.