No part of a cabinet moves as often as a drawer. The cutlery or plate drawer in a kitchen can be pulled out dozens of times daily, loaded each time. Whether it glides and how many years it keeps gliding depends mostly on the runner fitted under or beside it, not on the box. Knowing the runner types helps both when ordering new furniture and when assessing what you already have.
What to compare
Different runners can be compared on a few criteria:
- Extension: does the drawer come out fully, or does its back stay inside the carcass?
- Load capacity: does the manufacturer's load rating match what the drawer will really hold?
- Smoothness and noise of movement.
- Whether soft-close or push-to-open is available.
- Appearance: is the runner visible when the drawer is open?
- Adjustment: can the front be adjusted in height and sideways after fitting?
Roller runners
The roller runner is the simplest design: a metal profile under the drawer sides runs on plastic wheels along a profile in the carcass. Usually the drawer does not open fully and its back stays in the carcass, making items at the back of a deep drawer hard to reach.
Roller runners suit light loads and are an economical choice thanks to their simple construction. They may be enough for a toy drawer in a children's room, a small drawer rarely opened, or light papers in an office. Under heavy crockery and intensive daily use, however, noise, wobble and stiffer movement tend to appear over time.
Ball-bearing telescopic runners
These runners fix to the side of the drawer and have a telescopic structure of several sections with metal ball bearings inside. Most models allow full extension and carry more than roller versions. Movement is smooth and stable.
Their drawback is appearance: when the drawer is open, the metal runner is visible at the side. The runner also occupies space between drawer and carcass, slightly reducing the drawer's internal width. Versions with soft-close exist. They are a reliable choice for office pedestals, workshop furniture and places where looks are secondary.
Concealed full-extension runners
Concealed runners fit under the drawer bottom and stay out of sight even when the drawer is open. The drawer extends fully, the movement is very smooth and soft-close is usually standard. These runners allow the front to be adjusted in height, sideways and sometimes in tilt, which is important for achieving even gaps between fronts.
Blum's Tandem and Movento runners belong to this group. They come in different load ratings, so in a kitchen a heavy pots-and-plates drawer and a light cutlery drawer can use different models. The requirement for concealed runners is precise manufacturing: the drawer dimensions and bottom construction must be made to suit the runner.
Metal box systems
In box systems the drawer sides are made of metal profiles rather than board and form a single system with the runner. Blum's Tandembox, Legrabox and Merivobox are examples. The manufacturer designs sides and runner together, which means consistent quality and accurate assembly.
Because metal sides are thinner than board, the drawer's internal volume increases. The look is contemporary, and the systems can be completed with accessories such as inner dividers, gallery rails and glass side panels. They are widely used in kitchens, bathrooms and wardrobes.
Whatever the runner type, correct installation determines its life. Runners must be fixed parallel and at the same height on both sides of the carcass; even a slight misalignment makes the drawer stick and wears the mechanism early. It is equally important not to load a drawer beyond the manufacturer's rating.
Which runner for which drawer
- Kitchen crockery and pan drawers: concealed full-extension runners or a box system, rated for the load.
- Deep kitchen base drawers: full extension is essential, or the back part goes unused.
- Internal wardrobe drawers: concealed or ball-bearing runners, coordinated with the door type.
- Office pedestal: ball-bearing telescopic runners; watch the load rating for file drawers.
- Light, rarely used drawers: roller runners may be enough.
Zaferoglu Mebel fits Blum runners; the runner type and load class for every drawer are picked in the design from its width and contents.
