Introduction to Rationel
Since our very first order of 31 barn windows was shipped from our factory in Sonder Felding, Denmark in 1954, Rationel has been characterised by skilled design work and proud craftsmanship.
Today, Rationel supplies bespoke, premium quality windows and doors to families and homebuilders all around the world.
Our energy-saving products combine the aesthetic beauty of natural timber with durable, high performance hardware, bringing your family the highest standards of comfort and security.
Get the Rationel product catalogue - We have a wide range of detailed product catalogues available to download. Or, order a hard copy and we will send it directly to your door.