This document summarizes Chapter 7 of a textbook on interior finishes for wood light frame construction. It discusses sequencing of interior finish work, insulating methods, common wall and flooring materials, and stair design. Sample problems are provided on proportioning fireplaces, stairs, and designing a prototype hostel building with platform frame construction. Review questions at the end assess understanding of insulation methods, popularity of wall finishes, moisture control during construction, and key stair design considerations like safety, consistent dimensions and code compliance.