Locks, Handles & Cylinders – Complete Selection and Installation Guide

Choosing the right lock based on door type

Entrance doors require multi-point locking systems with reinforced mechanisms, while interior doors work well with simpler variants. Pay attention to door thickness and frame profile – standard locks don't always fit specific dimensions. Brands like CISA and DORMAKABA offer lock systems adapted to different door types.

Security cylinders – understanding ratings

Cylinders are classified by their resistance to forced entry and manipulation. Labels like DIN EN 1303 or grade 5-6 indicate increased protection against drilling and extraction. Euro cylinders from Euro Elzett and AGB offer various security levels, from standard to anti-snap systems with reinforced break zones.

Cylinder length and proper measurement

The cylinder must precisely match door thickness plus hardware – oversized or undersized cylinders compromise security and functionality. Measure from the center of the rose to the door edge on both sides and add 5mm allowance. Incorrect length can prevent full locking or leave the cylinder exposed to attacks.

Door handles – materials and ergonomics

Quality handles are made from brass, aluminum or stainless steel, often with additional anti-wear coatings. Brands like Ghidini Cipriano and Fimet combine functionality and design, offering models that withstand intensive use. Pay attention to handle shape – ergonomic design reduces hand fatigue and makes operation easier for people with reduced grip strength.

Handle compatibility with locks

Handles must match the lock's type and dimensions – axle spacing, keyhole depth and hole diameter affect proper installation. Check whether you need a WC rosette, BB rosette or cylinder rosette. Mismatched components can damage the lock mechanism or cause locking problems.

Security hardware and protective rosettes

Hardware with cylinder pull-resistance and anti-vandal rosettes increase burglary resistance. Models from CISA and Bamit often include concealed screws and reinforced plates that prevent forced removal. For additional security, choose hardware with resistance certificates confirming tested protection against mechanical attacks.

Selection and Pricing

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