“Custos” is the Marsilii coplanar door with in-sight hinges.

Perfectly coplanar to the wall, the Custos door can be opened pushing or pulling without giving up the design freedom. It is an innovative project, based on an exclusive profile with double anti-crowbar wing.

Types of handles

Linea Custos
Linea Custos
Linea Custos Marsilii


Concealed hinges on the inner side of the door; Door frame finished off with the door casing coplanar to the panel; Excellent armouring with double 20/10 metal sheet; Metal sheet’s thickness over the whole lock area of 80/10; Possibility of having rotary handles.


The Custos security door features a superb mechanical invention, which allows the bolts to fit into their seats by simply placing the door closer to the wing.
The locking operation, so far carried out by the user with a key, is automatically performed by the “Custos P 12 laser” lock itself.
The door is constantly reinforced by six independent and burglar-proof pins, which are longer than 10 cm and come 3 cm out from the door leaf. The key is only needed to open the door from the outside; From the inside the Custos door is opened by simply turning the doorknob or the rotary (or sliding) handle.


Security doors requiring electrical controls are equipped with the “Custos P 12 Laser E” lock.
The door is closed mechanically without the aid of electrical devices, but it can be opened both mechanically and electrically.


Counter frame

It is realized in 25/10 sheet-zinc, properly shaped to contain the frame, making it unassailable to levers such as crowbars and screwdrivers. This system also allows to have major endurance during the assembly, in case the threshold is stalled higher or lower than it should be (about 2cm).



It is realized in double 20/10 sheet-zinc, properly shaped to fit into the counter frame and stove enamelled. It also has latch recorder, in-sight hinges with self-lubricating bushes, adjustable to high/low. The EPDM gasket is embedded in between the frame and the counter frame, isolating the inside from the outside both thermally and acoustically.


Door leaf

It is made of double metal sheet 20/10 thick, the first on the external side of the door and the second on the internal one. The internal reinforcement is made of a 60" tubular grating. The door leaf is insulated thermo-acoustically and is also equipped with a highly reliable clamping unit: the “Custos P 12 Laser” with automatic locking system moves six pivots 10cm long and is provided with the European profile cylinder, protected by a coplanar defender. The patented draught excluder functions as a seal both on the floor and on the frame’s gaskets, obtaining a result comparable to the fixed threshold system without the risk of having obstacles in the passage area.



It extends over the top of the door without any structural variation. It can be made of vandal resistant laminated glass of 18/19 thickness or anticrime glass of 19/21 thickness (under request also 26/27 or 39/41).


Exclusive features of the door

Constant guarantee of security, no longer tied to the use of keys; Practical opening from the inside with effective anti-panic function; Anti-jamming device: the key is always recast with the position of the pins.

Linea Custos