Rectifier 3 seater sofa or mattress 140/180 - Lattes wood fiber - Manufact. France -
Lack of information for installing this product, even if it is simple !!!!! Should we put flat or as in the picture? If this is the case, it does not and it's not long enough for a 3 seater sofa !! So I laid flat, but I had still put an extra reinfor