A roller door for a Perth garage
A roller door makes sense where the ceiling space matters. The curtain winds up into a roll right above the opening, so the garage roof stays free for storage racks or a low pitched ceiling.
It works on a carport or a shed as well as an attached garage, and Steel-Line says its roller doors can be lifted by hand or run by a motor, so you can start manual and add an opener later.
Roller door sizes in Perth: two makers' figures
| Steel-Line | B&D | |
|---|---|---|
| Headroom, standard home doors | 430mm to 510mm (A and AA series) | 430mm to 470mm (Series 1) |
| Headroom, bigger doors | Up to 570mm (B series) | 515mm to 620mm (Series 2 and 3) |
| Widths quoted | 750mm to 3430mm (A), 3435mm to 5500mm (AA) | Up to 3150mm including the curtain overlap (Series 1) |
Reading the table
Each maker words it differently: Steel-Line calls its headroom figures a guide only, and B&D's figures shift with the model and the height of the door. Treat the table as a first check that a roller door is possible, then let the door specialist measure the opening, the space above and the room either side.
Finishes you can get in WA
Colorbond steel is the usual choice. Steel-Line makes its roller doors from BlueScope Colorbond and Zincalume steel, Gliderol offers a wide range of Colorbond colours, and B&D sells timber-look roller doors under the name Timber Coat.
One to cross off the list: Steel-Line says its UniCote LUX patterned roller door is not available in Western Australia.
Roller doors on bushfire prone land
If the home is on bushfire prone land, its BAL assessment and the building surveyor decide what the garage door has to meet. CSIRO says homes, garages and sheds in an area rated BAL-12.5 or above may need specific measures to cut their risk.
B&D says its BAL-Maze seal system performed up to BAL-40 in CSIRO testing, but it is sold on Panelift sectional doors and is not available on roller doors. In a high BAL area, ask early whether a roller door can meet your rating at all.
Roller doors around Perth
The hills
In the Perth Hills, where the 2021 Wooroloo fire destroyed 86 homes, find out the BAL rating before you settle on a door type.
Wind-rated doors
WA's version of the code brings in AS/NZS 4505 from wind region B. B&D says its Wind-Rated Roll-A-Door meets the NCC's high-wind requirements, using wind clips that tie the curtain to the door frame.
Near the sea
BlueScope's advice is to hose Colorbond down with fresh water at least every six months, and more often where marine salt spray is common, paying attention to spots the rain misses.
Made locally
Steel-Line says its own Perth factory serves the West Coast market, and B&D lists a Western Australian factory in its rolling door guide.
What we would do
On a carport or shed, check the side room on the motor side before you plan to add an opener. Steel-Line's A series needs 90mm beside the opening when it is worked by hand but 120mm with an opener, and that space has to be there before a motor can go on.

