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Contractor's B Trade > Rough Framing > Flashcards

Rough Framing Flashcards

Rough Framing, foundation

1
Q

On the top of the foundation wall is a wooden member called a

A

Sill Plate “Mud Sill”

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2
Q

Wood Sill Plates shall be bolted to the foundation or foundation wall with steel bolts with a minimal nominal diameter of

A

1/2” steel bolts

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3
Q

How deep should bolt’s bee embedded into the concrete or masonry?

A

7-inches

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4
Q

How far apart should the steel bolts be separated when embedded into the concrete or masonry foundation

A

not more than 6-feet apart

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5
Q

How many bolts should be be in one sill plate?
What is the calculation of 7 bolt diameters

A

Minimum two-steel bolts per piece with one-bolt not more than 12-inches or less than 7-bolt diameters
(1/2” bolt x 7 = 3.5-inches)

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6
Q

What must be tightened on each bolt to the plate?

A

A properly sized nut and washer

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7
Q

How many bolts does an 8=foot plate need?

A

Two bolts

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8
Q

How many bolts does an 9-foot plate need?

A

Three bolts

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9
Q

What type of wood should foundation plates use?

A

Treated wood or Foundation grade-redwood

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10
Q

What is the normal size a foundation plate laid flat?

A

2”x6” fastened to the foundation wall with anchor bolts cast into the wet concrete.

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11
Q

What is the maximum notch able to be made on joist depth?

A

1/4 or 25% of Joist Depth

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12
Q

Notches in the top or bottom of joist shall not exceed what depth ?

A

Shall not exceed 1/6 of the joist depth and not located in the middle of third span

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13
Q

Holes bored into framing shall not be within what distance of top or bottom of the joist?

A

Within 2-inches of top or bottom

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14
Q

What is the maximum bore diameter for any wood stud?

A

40%

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15
Q

When is it applicable to bore 60% of wood stud?

A

In nonbearing partions or where each bored stud is doubled.

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16
Q

Holes bored in joist shall shall not exceed what diameter of joist depth?

A

Shall not exceed 1/3 of joist depth

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17
Q

When are you required to provide fire blocks?

A

In openings around vents, pipes, ducts, chimney’s,fire places and openings

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18
Q

When plumbing, heating or other pipes are placed in a or partly in a partition, necessitating the cutting of soles or plates, what is required?

A

A metal tie

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19
Q

What dimensions and features of the metal tie should be?

A

not less than .058 -inches or 1.47mm, 16-galvanized gage and 1 1/2” (38mm)

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20
Q

What is the minimum thickness of solid blocking?

A

2-inches in thickness and the full depth of the joist

21
Q

Joist framing from opposite sides of a beam, girder or partion shall be lapped at least how many inches?

A

3-inches

22
Q

Joist framing into the side of a wood girder shall be supported by framing anchors or on ledger strips not less than?

A

2x2-inches or 5mm x 5mm

23
Q

When should a double header be used?

A

When the span of the header exceeds 4 FT

24
Q

How far should studs be spaced if supporting floors above?

A

Not more than 16-inches on center

25
Q

How far should studs be spaced if supporting only a ceiling and a roof?

A

May be spaced up to 24-inches on center.

26
Q

All __________ walls must be braced

A

Exterior

27
Q

What is the most common method used to brace corner’s?

A

Plywood panels at each corner

28
Q

What is another method to brace corner’s?

A

Use a 1-inch x 4-inch brace inserted at an angle into stud. runs from floor to top plate “california corner”

29
Q

What is the rule of thumb for a header?

A

Openings 4 feet or less can be made of DOUBLE 2x4’s on edge. For each 2 feet over 4 feet increase LUMBER size 2-inches.
ex. 6 foot opening? 2x6-inch
ex2. 8 foot opening? 2x8-inch

30
Q

What are the extra short studs called under the lower side of the window opening?

A

Cripple walls

31
Q

What is the requirement for cripple walls?

A

Minimum 14-inch lengths. If cripple wall exceeds 4-feet in height, the studs must be the size of the required for an additional story

32
Q

What wood has has a natural resistance to decay?

A

Redwood and Cypruss

33
Q

What is the minimum entry hole for under floor space?

A

18-inches x 24-inches (1’6*2)

34
Q

Why are fire blocks installed?

A

Installed between studs to form a barrier to air movement in the framing and between floors.

35
Q

In what places are fire blocks installed?

A

In concealed spaces of stud walls/partitions including furred space at ceiling and floor levels and at 10-foot intervals both vertical and horizontal

36
Q

What is the means of egress?

A

An exit system that provides a continuous, unobstructed and undiminished path of exit travel

37
Q

What is a public way?

A

Any, street alley or similar parcel of land unobstructed from ground to sky, having a clear width of not less than 10 Feet

38
Q

What is an exit court?

A

A yard our court providing access to a public way for one ore more required exits

39
Q

How many exit’s per story should there be?

A

Minimum 1 exit

40
Q

On a two story building where occupant load is 10 or more, how many exits must it have?

A

Two-exits

41
Q

Every required exit doorway serving occupancy load of 10 or more, how wide and how high should the door be?

A

minimum 3-feet width and 6’8 height with opening width of 32-inches

42
Q

What has more holding power? Wood Screws or Nails?

A

Wood Screws

43
Q

How far should a screw go in as a fastner?

A

Two-thirds

44
Q

When should Lag screws be used?

A

When fastening 1-inch or 2-inch pieces to heavier membranes and to attach metal shapes such as (angles,channels and straps).

45
Q

How deep should a lag screw/bolt go into wood? and pre-bored to what diameter?

A

At least 7 times shaft diameter and pre-bored 7/8 of the diameter of the screw

46
Q

How many types of timber connections are used to strengthen the joint where wood meets wood or other structural material?

A

60

47
Q

What are common sizes of shear plates? and fastened with what size?

A

2-inches to 8-inches and fastened with 1/2-inch or 3/4 inch bolts

48
Q
A

Contractor's B Trade (4 decks)

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