In this reading ching covers wood steal and concrete. The wood consist of  factory lumber, dimension lumber, structural lumber, and timber. Wood is very good with tension and compression. Would is known for structural strength and appearance. Structural lumber includes beams of more than five inches wide stringer and post. Dimensional lumber consist of joice, light framing, and decking, Then theirs steal. Steal comes in four shapes, S shape, W shape, C shape, and tubing. Teal already comes cut from the factories. Steal has shear and moment connections. These connections consist of angles,plates, and bolts. Some ridged connections have well. Open web joist can span from twelve ft to 144ft.

Chapter 8

Mortar is used in machinery to steal and keeps water to seal and keep water away and for bonding. Mortar comes in many colors and strengths. Brick is fined resistant and also comes in many colors. Brick walls have different patterns like the running bond for cavity walls and Flemish bonds. Steal lintels are reinforced brick with cement grout and other lintels are made of precast reinforce concrete. Thicker walls are reinforce with grout.