Irma is of Germanic origin, and it is used mainly in the English, French, German, Indian, Italian, and Spanish languages. The name is derived from the short form of German names with the first element irmin (meaning 'whole, immense, universal') or ermen and starting with 'Irm-', such as Irmingard.
Wood framing, or light frame construction, is the assembly of dimensional lumber or engineered wood lumber that is regularly spaced and fastened together with nails to create floor, wall and roof assemblies. Wood is the most common material used within the construction industry today.
Expert diagrams of the two major types of wood-frame construction for house walls and roofs. Two basic methods are used for framing a house: platform and balloon-frame construction. Platform construction is much more common than balloon framing, though balloon framing was employed in many two-story houses before 1930.