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Sill and Floor Construction

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Presentation on theme: "Sill and Floor Construction"— Presentation transcript:

1 Sill and Floor Construction
Chapter 11 Sill and Floor Construction

2 Platform Framing One and two story construction Easy Fast
Shrinkage is uniform Safe – solid surface for construction

3 Platform Framing Sill Plate – rests on the foundation, the beginning of the wood structure. (2 x 6) Sill Sealer Box sill construction Header Floor Joists

4 Platform Framing

5 Balloon Framing Older method Wall studs rest directly on sill plate.
Solid / Standard sill T-Sill Good Vertical stability Need for fire stops Poor work surface during construction

6 Balloon Framing Solid Sill No header Need for fire stops
Joists nailed to wall studs

7 Balloon Framing T-Sill Has header No need for fire stop

8 Balloon Framing

9 Joists and Beams Joists – Provide support for the floor
2 x 6 to 2 x 12 12” , 16” or 24” spacing Softwood Size depends on Length of span Load to be supported Species and grade of wood Spacing (O.C)

10 Wood sizing Nominal vs. Actual 2 x 4 is actually 1½” x 3½”
Chart on page 195

11 Floor Joist Span Data Page 196

12 Floor Systems Trusses P. 199 Girders Beams
Partition Walls (Parallel Walls) Cross Bridging P. 198

13 Sub floor Plywood Tongue and Groove Common Boards OSB

14 Cantilevering

15 Post and Beam Posts support Beams
Load bearing is spread over a greater span Non load bearing walls Curtain Walls Foundations are continuous wall or piers Beams are Longitudinal vs. Traverse Perpendicular to the ridge beam In line with the ridge beam

16


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