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NEXT SD 3 add-on security door

An externally inconspicuous repair or renovation of a door is much more effective than a mere additional lock or deadbolt. The door is secured in important places, such as the hinges, lock, doorframe and door surface. On houses subject to historical preservation requirements, this is the least expensive and often the only possible security solution. Installation is certified for doors with metal and 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.

Add-on door

This door renovation will turn your original door into a full-fledged security door. The additional lock is secured by a solid side beam. The add-on door will be mounted on the interior side of your original door. The exterior side in the corridor will remain completely unchanged.

Anchoring beam

The solid steel 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.

Locking-pin casing in floor

The lower pins lock into a casing set in concrete in the floor and are controlled by the additional lock.

Upper locking-pin casing

The additional lock controls the upper pins, which lock into the casing. The security bar above the door reinforces the original doorframe.

Additional lock controls eight locking points

Always custom manufactured to fit your original door

Full-area sheet-metal armouring, reinforced with additional sheet metal in the area of the lock

Door renovation with steel frame and ribbing

Sound and thermal insulation

Suitable also for wooden doorframes

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

NEXT SD 3 add-on 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 3 add-on security door - Gallery

NEXT SD 3 add-on 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.