IET 222 COMMERCIAL ARCHITECTURE DESIGN

1
Residential Framing
Prints
Unit 14
2
Unit 14Residential Framing Prints
page 131
Learning Objectives

• List the differences between heavy framing and
  light framing
• Recognize the construction of floor frames, roof
  frames, and wall frames
• Read framing drawings
• Explain the difference between platform and
  balloon framing

3
Residential Framing Prints
Unit 14
Learning Objectives continued

• Understand stair details and terms

• Recognize metal framing systems

4
Wood Framing
Unit 14 pages 143 - 144

• widely-used, widely-known
• affordable
• durable
• dependable
• flexible construction methods

5
Framing Components
Unit 14 page 144

• floor framing

• sill plates
• attached to top surface of foundation wall
• header
• nailed to top of sill plate
• joists
• floor supports

6
Framing Components
Unit 14 page 144
floor framing

• subfloor
• covers the joist (the floor)
• typically plywood sometimes wood lumber
• double header
• used when framing pattern is disrupted -
  typically an opening

7
Framing Components
Unit 14 page 144

• double trimmer
• two joist nailed together next to an opening
• tail joist
• run between double header and sill plate
• ledger
• small piece of lumber bottom edge of a double
  header

floor framing
8
Framing Components
Unit 14 page 144

• bridging
• small member between joist to provide lateral
  support
• floor framing
• shown on a floor framing plan
• 2 x 12 joist _at_ 16 O.C.

floor framing
9
Floor Framing
Unit 14 page 144 Figure 14 - 1
subfloor plywood or lumber
regular joist
header
sill plate
anchor bolt
10
Floor Framing
Unit 14 page 145 Figure 14 - 2
?
joist hanger
?
regular joist
?
?
double header
?
ledger
double trimmer
?
?
bridging
?
header
11
Dimensioning
Unit 14 page 144

• for exterior walls
• given to outside of stud
• for interior
• given to edge of stud or
• centerline of stud
• check drawing carefully to verify the
  dimensioning practice followed for any given set
  of plans

12
Wall Frames
Unit 14 page 146 Figure 14 - 4
cantilever floor
13
Wall Frames
Unit 14 page 145

• platform framing
• first floor on foundation
• first floor walls
• second floor platform
• second floor walls

14
Wall Frames
Unit 14 page 146 Figure 14 - 5
platform framing
15
Wall Frames
Unit 14 page 145

• balloon framing
• studs extend from first floor sill plate to
  second floor
• ribbons are used to support joist on second floor
• reduces lumber shrinkage in masonry and stucco
  structures
• spreads fire

16
Wall Frames
Unit 14 page 146 Figure 14 - 6
balloon framing
17
Wall Framing
Unit 14 page 148 Figure 14 - 9
18
Wall Framing
Unit 14 page 148 Figure 14 - 10
19
Sectional View
Unit 14 page 149 Figure 14 - 12
20
Wall Section
21
Roof Types
Unit 14 page 150 Figure 14 - 13
22
Roof Framing
Unit 14 page 150

• roof truss
• prefabricated member to span over roof
• rafter
• angled member that supports the roof
• typically 2x6, 2x8, 2x10 members

23
Roof Framing
Unit 14 page 150

• ridge
• horizontal member at peak of the roof

• collar beam
• horizontal member that ties rafters together
• rise
• vertical distance between the top plate and ridge
  board

24
Roof Framing
Unit 14 page 150

• run
• horizontal distance from the wall to the bottom
  of the rafter to the rafter ridge board

• span
• distance between wall supporting the rafters
• birds mouth
• cut out for rafter to set flat ontop plate of
  stud wall

25
Roof Framing
Unit 14 page 151

• common rafter
• that run at right angles from wall plate to the
  ridge

• hip rafter
• extend from the an outside corner to the ridge
  board
• usually at a 45º angle
• valley rafter
• extend from the inside cornerto the ridge board

26
Roof Framing
Unit 14 page 151

• cripple rafter
• runs between valley and hip rafter

• purlin
• horizontal member laid over truss to support long
  rafters or the break in gablrel roof rafter

27
Roof Framing Plan
Unit 14 page 151 Figure 14 - 14
28
Roof Framing Plan
Unit 14 page 151 Figure 14 - 15
29
Roof Framing Plan
Unit 14 page 151 Figure 14 - 16
30
Stair Frames
Unit 14 page 152

• stringer
• the member running between lower and upper levels
• typically 2x8, 2x10, or 2x12
• tread
• distance between front or back of adjacent stairs

31
Stair Frames
Unit 14 page 152

• run
• total horizontal length of a stairway

• rise
• vertical distance between floors

NOTE always one more riser than tread
32
Stair Section
Unit 14 page 152 Figure 14 - 17
riser
?
tread
?
rise
?
?
stringer
run
?
33
Stair Layouts
Unit 14 page 152 Figure 14 - 18
34
Metal Framing
Unit 14 page 153 Figure 14 - 20
35
Metal Framing
Unit 14 page 153 Figure 14 - 20
36
Test Your Knowledge
Unit 14

• take 10 minutes to complete the test on page 154

37
Wood Framing Prints
Unit 14

• Take 10 minutes complete the questions for
  Activity 14-1 on page 155 refer to large prints
  14-1a thru 14-1d

38
Wood Framing Prints
Unit 14

• Take 10 minutes complete the questions for
  Activity 14-2 on page 157 refer to large prints
  14-2a thru 14-2d

END OF UNIT 14