Attic stairs
A modern house is inconceivable without attic stairs, because almost all attics and attics are exploited premises, and it is not always possible to install a stationary staircase there. It is very convenient to use folding compact, functional structures called attic stairs. They are easy to use and relatively cheap. You can unfold them using an electric motor with a servo drive, or simply manually. When folded, ladders with a locking lock also serve as an obstacle to access to the attic. Folding loft ladders have several sections that overlap each other when they are extended and folded. They are usually made from pine, maple, beech, oak. There are also combined staircases with a metal frame and wooden steps. The main disadvantage of such structures is the impossibility of height adjustment. They need to be adjusted by cutting off the extra steps. In addition, it is not easy to use it due to its rather large weight. The Italian metal ladders B3 and B4, which have a system of springs and are designed for more than four meters in height, are easier to unfold and fold. The accordion-folding attic stairs are made only of metal. Usually they have an electric drive, which greatly facilitates the operation of this design..
