Your Panel Garage Door Explained
A panel lift garage door and a sectional garage door are the same thing. The name you hear usually just depends on who is talking about it. B&D calls its version the Panelift. Gliderol calls its equivalent the Panel•Glide. Installers and homeowners tend to use “panel lift” and “sectional” interchangeably, and if you have seen “Panelift” written as one word on a spec sheet or an old B&D door, that is a brand name rather than a different type of door.
The door itself is made up of several horizontal panels, hinged together, that travel up a pair of vertical tracks and curve back to sit flat under the garage ceiling. It is a completely different mechanism to a roller door, which rolls the whole curtain into a compact bundle directly above the opening rather than travelling back into the roof space. That difference matters more than most people realise once they start choosing between the two, and we will get to it further down.
At Affordable Openings we supply and install panel lift and sectional doors from four brands: Gliderol, Signature, B&D and Danmar. Between them they cover most of what a Central Coast homeowner is likely to want, from a straightforward Colorbond panel door through to a fully custom timber-look design. Which one suits your home usually comes down to budget, the style of the house, and how much headroom you have to work with.
How Does a Panel Lift Garage Door Work?
Every panel lift door relies on the same basic system, regardless of brand: a torsion spring, a set of cable drums, and a curved track that changes direction from vertical to horizontal.
The spring sits above the door opening and does the actual lifting. As the door closes, the spring winds up and stores energy. When the door opens, that stored energy releases through the torsion bar, turning the cable drums, which wind in the lift cables and draw the panels up the tracks. Each panel is hinged to the next, so as the leading panel reaches the curve in the track, it tilts and begins travelling horizontally while the panels below it are still moving vertically. The result is a door that folds itself flat against the ceiling in one continuous motion.
One thing that catches a lot of homeowners out is assuming a panel lift door is heavier to operate than it looks. It is not, provided the spring tension is set correctly. A properly balanced door should stay roughly in place if you lift it halfway by hand and let go, rather than dropping or shooting upward. That balance test is something we check on every installation and every service call, because a door that is out of balance puts unnecessary strain on the opener motor and shortens its life.
Torsion springs are under serious tension, and adjusting or replacing one is not a job for anyone without the right training. If your door is struggling to open, sitting unevenly, or making a noise it did not used to make, that is usually the spring or the track rather than the opener, and it is worth getting it looked at before the motor takes the strain instead.
Garage door design and installation in Australia falls under AS/NZS 4505, and the steel components of a sectional door are covered separately under AS/NZS 4600. Not something most homeowners need to think about day to day, but it is the standard any installer worth using is working to.
Headroom, Materials and Panel Lift vs Roller Doors
Because the panels travel back into the roof space rather than rolling into a barrel above the opening, a panel lift door needs clear room above the opening for the springs, drums and track curve to sit. This is called headroom, and it is one of the first things we check before quoting a job.
As a working example, B&D’s own Panelift installation specifications call for a minimum of 300mm of headroom (320mm where combo brackets are fitted), 120mm of sideroom on each side (140mm where double wheels and axles are used), and backroom equal to the door height plus 350mm so the horizontal tracks have somewhere to run.
Gliderol, Signature and Danmar each have their own hardware and their own clearances, so those figures should be treated as a guide to what to expect from a torsion-spring panel lift system generally, not as a fixed number for every door we install. Where headroom is genuinely tight, low-headroom hardware kits are available that bring that clearance down considerably, though they add cost and complexity to the install.
How Much Headroom Do You Need?
The honest answer is that it depends on the brand and hardware you choose, which is exactly why we measure the opening before recommending a door rather than after. If your garage has a bulkhead, ducting, or a beam sitting close to the opening, say so when you call, because it often changes which brand or hardware kit makes sense.
Materials vary by brand too. Steel and Colorbond panels are the most common choice for their durability and colour range, while Signature and Danmar both offer timber-look and custom finishes for homeowners who want the door to match a particular architectural style rather than a standard palette.
It is worth comparing panel lift doors briefly against roller doors, since we supply both. A roller door needs more vertical headroom above the opening but no backroom at all, because the curtain rolls into a compact bundle rather than travelling into the garage. A panel lift door generally needs less headroom but does need that backroom clearance. For garages with a low roofline but plenty of depth, panel lift is often the better fit. For garages with limited depth but adequate height, a roller door can make more sense. We can talk you through which applies to your situation, since it genuinely varies from one garage to the next.
Panel Lift Garage Door Supply & Install on the Central Coast
Affordable Openings has been supplying and installing garage doors across the Central Coast since Shane O’Sullivan, a qualified carpenter with more than 30 years in the industry, started the business. We are the exclusive regional supplier of Gliderol, alongside our Signature, B&D and Danmar ranges, which means we are not trying to steer every customer toward a single brand regardless of whether it actually suits their garage.
Lets's Chat about your New Panel Garage Door
If you are weighing up a panel lift door for a new build or a replacement, the most useful next step is usually a measure and a conversation rather than a quote off a photo. We can tell you fairly quickly whether your headroom and backroom suit a standard installation or whether you would be better served by a different hardware kit or door type altogether.
Call us on (02) 4353 0853 for our Tuggerah showroom or (02) 4344 4838 for Woy Woy, Monday to Friday, 7:30am to 5:00pm, and we will talk through what will actually work for your garage.
Frequently Asked Questions
Nothing. They are the same product. “Panel lift” and “sectional” are both used across the industry, and “Panelift” is B&D's specific brand name for its version.
It is B&D's own panel lift, or sectional, garage door, built on a torsion spring system. Gliderol's equivalent product is called the Panel•Glide.
It depends on the brand and hardware. B&D's standard Panelift specification calls for a minimum of 300mm, or 320mm with combo brackets. Other brands vary, so we confirm the exact figure once we have measured your garage.
No. A panel lift door is made of hinged panels that travel back into the roof space. A roller door is a single curtain that rolls into a compact bundle above the opening. They suit different garages depending on available headroom and depth.
Disconnect the automatic opener and lift the door by hand to roughly halfway. A correctly balanced door should stay where you leave it rather than dropping or rising on its own. If it does not, the spring tension needs adjusting.
