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Y2: Carpenter Theory > 201bA: Wall Framing - A > Flashcards

201bA: Wall Framing - A Flashcards

1
Q

5 main framing systems

A

1) platform (houses)
2) balloon (old houses)
3) post and beam (timber framing)
4) pole (farm buildings)
5) structural insulated panels (expensive pre-fab)

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2
Q

What is framing with separately constructed floors to then build and stand walls on?

A

Platform

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3
Q

Number of plates in walls

A

3 (bottom/top/cap)

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4
Q

What must be used to connect walls with only a single top plate?

A

Metal strap

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5
Q

If a truss lands on top of a stud or within 2” of its edge, can I use a single top plate?

A

Yes

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6
Q

What member spreads the weight around an opening?

A

Lintel

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7
Q

What members transfer the lintel load down to the floor?

A

Trimmer

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8
Q

What members frame the BOTTOM HEIGHT of a window opening (and sometimes top if specified)?

A

Cripple

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9
Q

3 Common stud spacing

A

16”
19.2”
24”

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10
Q

3 common precision end trimmed studs (PETS)

A

92-5/8 (8’)
104-5/8 (9’)
116-5/8 (10’)

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11
Q

3 common finished wall heights (studs + 3 plates)

A

97-1/8”
109-1/8”
121-1/8”

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12
Q

Besides spreading load out, what 2 additional things do wall plates achieve

A

1) keep OC spacing
2) fire stop

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13
Q

How much shrinkage per floor can you expect with traditional lumber?

A

1/2”

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14
Q

What differs balloon from platform framing?

A

Balloon = continuous wall studs from sill plate to roof

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15
Q

How do we support second story floors within the walls of balloon framing?

A

Ribbon; blocks or notched in framing to rest joists on

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16
Q

Common OC for post and beam (hint: OSB sheet

A

8’

17
Q

Can you toenail post and beam and leave it?

A

No, typically need engineered metal connectors

18
Q

Common roof sheathing for p+b (thicker than normal to account for large spans)

A

1-1/2”

19
Q

What is the “foundation” of a pole building?

A

The large diameter poles, dug into the ground

20
Q

2 Common ways to build pole floors

A

1) cut pole at finished floor height and bolt floor on, platform frame up
2) leave poles full length, and build floor around, poles finish at roof

21
Q

What are SIPS

A

Structural Insulated Panels

22
Q

Do SIPS usually have studs inside?

A

Not always

23
Q

Lumber for framing moisture content (under 20%)

A

19%

24
Q

When is shrinkage highly likely

A

Load bearing members on edge or on flat

25
Q

What rigid finishes can shrinkage affect

A

1) drywall
2) stucco
3) window and door frames

26
Q

Typical wall wind bracing, 3 points

A

1) AT LEAST 18x89 (1x4)
2) notched into studs
3) 45deg angle from top to bottom plates

27
Q

Why can balloon framing be advantageous?

A

Minimal material framed on edge = less shrinkage

Y2: Carpenter Theory (10 decks)

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