The Supreme F30 loft ladder is a great choice for commercial and industrial use where fire protection is required. The heavy duty loft ladder offers both strength and durability, yet remains very easy to operate (just 3 kg operating load). In addition, the wooden hatch box offers 30 minutes of fire resistance (from below), good thermal insulation and an airtight seal.

How it’s made…
Each Supreme F30 is hand-assembled, before being fitted to a test rig for final set-up and inspection. Premier Loft Ladders provide an insightful overview of the assembly process, highlighting the careful attention to detail that goes into every single one of the products they offer.

Fire rated hatch box construction…
Each Supreme F30 with wooden hatch box is made-to-order from fire resistant chipboard B1. This is because each hatch box is made to fit the exact dimensions of the project. As a result, the loft ladder achieves a perfect fit when it is installed. In turn, this saves time on-site and ensures a high-quality finish.

The corners are fixed together with steel brackets. Therefore, this gives the frame the strength and rigidity it needs for use in commercial and industrial buildings. Also, a thick steel bracket is used to reinforce the section that holds the ladder to the hatch box frame. The end result is a loft ladder that is able to support a load of 200 kg per tread.

Concertina ladder assembly…
The next step is to assemble the concertina ladder. Like the hatch box, each one is prepared to order. The side arms are fitted together in a jig, then each tread is bolted in place at precisely the right angle (as shown in this photo). As a result, the treads are perfectly flat when the Supreme F30 loft ladder is extended to the floor.

The ladder is made of cast aluminium components. This gives them high strength and rigidity. Also, it helps keep the weight to a minimum, such that it is as easy to operate as possible. They are fitted with non-slip protective feet, which help prevent damage to floors when the ladder is in use and under heavy loads.

Final assembly and testing…
Finally, the concertina ladder can be fitted to the hatch box. The Supreme F30 uses gas struts to counter-balance its weight. As a result, the ladder can be opened and closed with ease. Also, the gas struts prevent the ladder from falling down under its own weight, therefore improving safety.

Each Supreme F30 is then put onto a test rig. A few finishing touches are applied, it is inspected and tested. Final adjustments are made to the loft ladder, if necessary, and it is sent off for packaging and dispatch.