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.
CHAPTER 5. Design of Wood. Framing. 5.1 General. This chapter addresses elements of above-grade structural systems in. residential construction. As discussed in Chapter 1, the residential construction. material most commonly used above grade in the United States is light-frame. wood; therefore, this chapter focuses on structural design that specifies standard.