Trellis & Retractable Grille Doors
For Sliding Doors & Shop Fronts (2026)

What a trellis grille is

“Trellis”, “collapsible gate”, “accordion grille” and “retractable grille” all describe the same thing: a grille made of vertical bars joined by crossing, pivoting links, so the whole gate folds up like a concertina. Pulled closed, it forms a diamond lattice across the opening; pushed open, it stacks into a narrow bundle at the side. In Malay it is often called a grill lipat.

It is one of the four common grille door types listed in ClickBina's grille door price guide, alongside swing, sliding and mesh grilles. Trellis grilles earn their place where the opening is wide and you want it clear when open.

Trellis, sliding grille or roller shutter?

For shop frontages, our shopfront options guide compares glass fronts, folding doors and roller shutters.

Trellis grilles at home: sliding doors and balconies

In homes, trellis grilles are most often fitted behind wide sliding glass doors to a patio, garden or balcony, and at kitchen or back doors facing a back lane. Folded away, they leave the glass door clear; closed, they let you keep the glass open for air at night with the house still locked.

• Check the opening: a trellis needs a straight, square opening and a solid wall or frame at each side to fix to.
• Decide where it will stack: one side or split to both sides, and whether the stack blocks a switch or a curtain.
• Think about the floor track: on a balcony it must drain, or it fills with rainwater and dirt.
• In a condo, check the building's rules on grille design before ordering.

Trellis grilles on shop fronts

Shops use trellis grilles where they want the frontage open all day and a see-through security layer at night, so the display stays visible after closing. They are also common inside malls and arcades between units, and in front of glass shopfronts as a second line of security. Heavy daily use is the challenge: a shop grille is opened and closed twice a day, every day, so wheels, pivots and tracks wear much faster than on a house.

Landlords and malls often set rules for shutters and grilles on frontages, so check them before ordering. Our commercial renovation permit guide covers approvals.

Tracks, wheels and how it runs

Most trellis grilles run on a top track, a bottom track, or both. A top-hung grille keeps the floor clear, which matters for wheelchairs, trolleys and tripping, but needs a strong head to hang from. A bottom track carries the weight well but collects sand, leaves and water, and can be a trip hazard if it stands proud of the floor. Ask which design is proposed, how the track is fixed and whether it can be recessed into the floor.

Mild steel, aluminium or stainless steel

The material choices are the same as for other grilles. ClickBina's grille guides set out the trade-off: powder-coated mild steel is the cheapest and still strong, but rusts at the welds once the coating chips, and needs a full repaint every 5–8 years; aluminium does not rust and is lighter, which helps a folding gate run smoothly, with hinges and locks oiled every 1–2 years; stainless steel is the premium, low-maintenance choice. Near the coast, aluminium or stainless steel is the safer pick.

Locks and security

• Avoid relying on a padlock; a proper lock built into the grille is harder to cut.
• Make sure a hand reaching through the lattice cannot reach the lock or the inside handle.
• Fix the lock keeper and the end posts into concrete or a steel frame, not plaster.
• Check that the lattice links and pivots are riveted or bolted securely, because they are the weak points under force.

Fire safety: keep a way out

A trellis grille across a door is also across your escape route. Keep the key hanging near the grille on the inside, where an adult can reach it in the dark but a person outside cannot, and make sure at least one exit can be opened quickly from inside. ClickBina's grille door guide explains the same rule for every grille door in the house.

What a trellis grille costs

ClickBina's grille guides quote folding grilles after measuring, because the width, height, stacking and tracks vary so much. These published rates (indicative 2026, Klang Valley) for related grille types are reference points, not a trellis price.

Measure the width and height of the opening, note where the grille should stack and whether there is a wall or frame to fix to; that is what any quote will be based on.

Keeping it running

• Keep the tracks clear of sand and leaves, and make sure rainwater can drain out.
• Oil the pivots, wheels and lock regularly; a stiff trellis is usually a dirty or dry one.
• Touch up chips on mild steel straight away with a rust-inhibiting primer before rust spreads.
• If the grille drags or drops, have the wheels and hangers checked before the frame bends.

How ClickBina can help

Trellis grilles are measured and quoted per opening. WhatsApp us your job details for a quote: the width and height of the opening, where it is and whether it is a home or a shop. ClickBina is an experienced KL & Selangor contractor for whole-house refurbishment and trade coordination. We reply within the hour, the price we agree is a flat price with no hidden charges, and a site visit is RM150, waived if you go ahead.

Sources & methodology

• ClickBina metal grille cost guide — sliding grille rates by material and the openable mechanism.
• ClickBina grille door price guide — grille types, the folding grille row, worked example, maintenance intervals, locks and fire safety.
• ClickBina shopfront options guide — roller shutters and folding doors on shop fronts.

How we estimated prices: every RM figure on this page is quoted unchanged from the ClickBina guides named above; they are indicative Klang Valley ranges for 2026 for related grille types, not a price for a trellis grille.