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Blueprints > #2 > Flashcards

#2 Flashcards

1
Q

What are the types of Lumber?

A

Hardwood
Softwood
Bamboo
Palm

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2
Q

What are the classes of Lumber?

A

Yard Lumber
Structural Material
Factory and Shop Lumber

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3
Q

What are the types of Yard lumber?

A

Select Lumber

Common Lumber

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4
Q

What are the grades of Select Lumber

A

Grade A: Natural finishes
Grade B: Natural finishes
Grade C: High quality paints and finishes
Grade D: Paint finishes

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5
Q

What are the grades of Common Lumber?

A 
#1 Common: Use w/o waste, tight knotted, water tight
#2 Common: Framing, sheathing (stress and strain not to great).
#3 Common: Permits some waste, footings, guardrails, rough flooring
#4 Common: Permits waste, low quality sheathing.  
#5 Common: Low quality, dunnage, boxes and crates.
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6
Q

Factory and Shop Lumber is used for what?

A

Doors, sashes, window frames, millwork, patterns, toys, industrial commodities (free of knots and imperfections).

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7
Q

What are the two types of dimensions?

A

Nominal - referred to by thickness and width, w/ lengths of 2’ increments
Actual - Permits waste

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8
Q

What is the formula for finding Board Feet?

A

BF = (T)(W)(L)(# of pieces)/12 or 144

  • use 12 if L’
  • use 144 if L”
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9
Q

What is the formula for finding Board Measure?

A

BM = BF(1.1 or 1.2)

  • 1” thickness or smaller use 1.2
  • 2” thickness of greater use 1.1
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10
Q

What is a Joint?

A

A connection of 2+ pieces that meet at an angle.

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11
Q

What are the categories of Joints?

A

Butt
Lap
Splice - a connection of 2+ pieces that continue in a straight line. Uses scabs. Designed to resist tension, compression and bending

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12
Q

What are the types of Butt Joints?

A

Straight Butt
Oblique Butt
Miter Butt

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13
Q

What are the types of Lap Joints?

A 
Cross Lap
Middle Lap
Miter Half Lap
Plain Lap
Half Lap
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14
Q

What are the types of Splice Joints?

A 
Butt Splice
Halved Splice
Square Splice
Plain Splice
Complimentary Splice
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15
Q

What are the types of Nails?

A

Common Wire
Finishing
Scaffolding
Roofing

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16
Q

What are the typical sizes of Nails and how is it indicated?

A
  • Sizes range from 2d - 60d (1” - 6”)

- Indicated by the term “penny”, which is denoted by “d”.

17
Q

What size Nails are used for Framing?

A

10d - 60d

18
Q

What size Nails are used for Sheathing?

A

2d - 8d

19
Q

What is the formula for finding lbs. of Nails needed for framing? Sheathing?

A

Framing - d/6(BM/100)

Sheathing - d/4(BM/100)

20
Q

What are the “Rules of Thumb”, when Nailing?

A

Nail must penetrate 2/3 into second board.
Drive Nails at a slight angle toward each other.
Use a good nailing pattern.

21
Q

What is Design Life?

A

How long a building is intended to stand for w/o major repairs done to it.

22
Q

What are the categories of Design Life?

A

Permanent - 25+ years
Semi-permanent - 5 - 25 years
Temporary - up to 5 years

23
Q

What are the types of Framing

A

Platform - studs extend only one story
Balloon - Studs rise full height of bldg.
Bracing - “Post and Girt”

24
Q

What is the formula for estimating floor sheathing?

A 
(L)(W)/32 = X (round up)
X(2) = total number of floor sheathing
25
Q

What is the formula for laying out a Stringer?

A

(Stair height overall rise)/7.5 = X (round up)
(Overall rise)/X = Y
X = # of steps needed in stringer.
Y = the rise in inches for each step

26
Q

What are the three types of wall panels?

A

Long Wall

Shorrt Wall

27
Q

What are the three types of wall panels?

A

Long Wall
Short Wall
Partition Wall

28
Q

What are the different types of Roofs?

A

Gable
Hip
Hip and Valley
Gable and Valley

29
Q

What is the formula to determine Rafter length?

A

A^2 + B^2 = C^2

30
Q

How do you find the number of roof members needed?

A

(Building length)/O.C. spacing = X (rounded up)

X+1 = Number of roof members.

31
Q

What is the formula for estimating roof sheathing?

A

(Total rafter length)(Total roof Length)/32 (2) = Total # of boards (round up).

Blueprints (3 decks)

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