It depends on the spec and it’s genuinely the most honest place to start, because the gap between a sliding folding door system that’ll handle ten years of heavy commercial use and one that’ll start causing problems inside eighteen months often comes down to how it was specified in the first place, not the door type itself.

High volume commerce environments have used sliding and folding doors successfully. Warehouses, distribution centers, manufacturing plants, retail, and hospitality environments use them. However, door system workloads are not the same, and that is where customers are left disappointed. 

What high traffic actually means for a door system

In a busy commercial building, a door system may open and shut hundreds of times each day. This number can drastically increase in industrial environments, where the activity is made up of working vehicles, going and stopped pedestrians, and multiple shifts in a production facility. Annually, the number can reach thousands of operational cycles.

Most commercial sliding and folding door systems cycle rating achieved using good engineering judgements are calibrated for cycle life. A reasonable mid-range system might be rated for 100,000 cycles. Better-specified hardware pushes beyond that. When evaluating a building, cycle rating is one of the many numbers that are worth paying attention to, as it provides a clearer picture of service life of the product, compared to a warranty period alone.

The other thing to consider is the type of traffic likely to be going through the sliding and folding doors. Pedestrian traffic only is one scenario. Areas where forklifts, pallet trucks, or vehicles need to move through the same opening, puts entirely different demands on the system. And in particularly on the bottom track and the panel edges. In most cases, the design should factor in the construct impact resistance above all other considerations.

Framing and panel Materials

 Apart from a few exceptions, aluminium is one of the best material for most commercial sliding and folding door systems. It tolerates a high level of traffic without too much wear. It also doesn’t rust, and its stability is not adversely affected over time despite repeated use as a result of the hardware operating cycles. The operating hardware also does not have to work too hard to lift the panel’s.

Steel is used for structures where strength and safety are top priority. Examples include fire rated applications, secured access points, and industrial perimeters. While steel is effective for these purposes, it is also heavier. This adds a greater load to the track and hardware as time goes on. This is only an issue when specifications are incorrect. 

Glazing specifications and panel thickness also play a role in the durability of a structure. For example, standard float glass and thinner panels are more appropriate for less trafficked environments. In more trafficked environments, it is recommended to use tougher panels, laminated glazing, and heavier panel profiles. Damage to glazing is normal, this is laminated glass’s defence towards impacts. 

 Track system 

Top hung system panels work best in environments where there is a lot of foot and vehicle traffic. The reason is that there is no bottom track to collect material like paper and molding that will get caught underneath and effects the mobility of the people on top of it. This is also an important factor when considering food safety and hygiene in industrial food production environments. This is sometimes the main reason for selecting top hung systems over traveling bottom rail systems.

The bottom-track system is functional and efficient, but as a bottom maintenance issue, a bottom track can become a maintenance concern sooner than expected.  

What Routine Maintenance is Needed?

It’s a fairly obvious statement that high traffic doors need maintenance and servicing more often than low traffic doors. Unfortunately, this is often overlooked when designing and planning, and leads to regular and ongoing persistent issues and a poor user experience. Simple things, but really, in systems carrying a load load and doing 50 cycles a day, service intervals should be reduced to almost continuous.

Do I Need Automation?

 Digital automation should be a serious consideration. Mechanically, high-use doors should never be opened or closed manually. Once installed, modern operators are expected to perform, without to or from service. In fact, moving/opening doors manual presents a significant increase in operator wear and service requirements. On a busy opening, the upfront cost is justified through increased user satisfaction. Closing/opening doors manually presents a significant operator wear and service requirements. On busy openings, the upfront cost is justified through increased user satisfaction.

Correcting specifications

Conversations regarding your specifications should be had prior to ordering, not after. Cycle rating, panel weight, track type, hardware grade, glazing specification, these are not details to be sorted out after an order is placed. A door supplier or installer with real-world commercial experience will want to know usage patterns, traffic type, and environments before making any recommendations. If that conversation isn’t taking place, don’t be afraid to try to make it happen.