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Y2: Carpenter Math > Yead 2 ALL MATH > Flashcards

Yead 2 ALL MATH Flashcards

(89 cards)

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1
Q

Material enclosed BOTH ends?

A

+1

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2
Q

Material enclosed ONE end?

A

No change

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3
Q

Material enclosed NEITHER end?

A

-1

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4
Q

Perimeter x 3 plates

A

Exterior lineal plate material

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5
Q

Opening width + 150
X2 windows
X1 doors

A

Filler/rough sills

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6
Q

Interior wall total length x 3 plates
+ 8% for waste and interior lintels

A

Interior wall lineal material

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7
Q

Perimeter/o.c. Spacing
Round up spaces

A

Exterior regular studs

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8
Q

Wall length/o.c.
+1 starter

A

Plumbing wall regular studs

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9
Q

Junctions + ____
Corners + ____
Openings +____
Posts +____

A

2
2
2
4

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10
Q

8% of regular exterior studs

A

EXTRA studs

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11
Q

Opening width + 300mm
X2 plies

A

Lintel length

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12
Q

Perimeter x exterior wall height
- openings over 3m2

A

Exterior wall sheathing

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13
Q

Is there a difference in calculating for drop beams vs flush beams?

A

Flush beams require hangers to be estimated

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14
Q

Building length/o.c.
X 2 sides when supported by beam
+2 when ceiling opening > two joist spaces

A

Regular ceiling joists

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15
Q

Beam length + 300mm bearing
X # of plies

A

Beam length required

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16
Q

Beam length/o.c.
X # of sides with hangers

A

Joist hangers

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17
Q

Are regular ceiling joists for gables and hips the same?

A

Yes. # of us same, but end ones are “pushed back” and laminated with second one in

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18
Q

Building width/o.c.
- 3 (we don’t need due to open end + 2 get in way of hip rafters)

A

Stub joists

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19
Q

Stub ceiling joists ALSO =

A

Stub joist hangers

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20
Q

First step calculating roof stuff before ANYTHING

A

Hip or gable?

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21
Q

Building length + 2 overhangs

A

GABLE roof RIDGE

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22
Q

Sqrt((rise/run)^2 + 1

A

SGF90

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23
Q

Sqrt((rise/run)^2 + 2)

A

SGF45

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24
Q

Building width/2

A

Common rafter run

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25
(Width/2) + OH X SGF90
Common rafter TLL
26
Width/2 X SGF90
Common rafter LL
27
OH x 2 = length Common rafter/o.c. = # of per barge X 4 barges
Gable lookouts
28
Length/o.c. + 1 close off + 4 barges
# of Gable common rafters
29
Do gable ends have fascia?
No. They are calculated as common rafters
30
Length + 2OH X 2 sides
Rough fascia
31
Width/2 /o.c. Don’t add or subtract X 2 gable ends (Reusing cutoff for other half of same gable face)
Gable regular studs
32
Width/3 + 300mm
Collar tie length
33
Do we “close off”collar ties at building ends?
No. Same as ceiling joists. Don’t need collar ties on both end walls. Subtract 1 for open ends of building
34
X/(width/2) = rise/run
Comparison to find centre gable stud length
35
Roof rise = 1 side of 45deg triangle Pythagoras for hypotenuse X 2 gable ends
Gavel END bracing
36
Centre gable stud length x common rafter run X 2 gable ends
Gable sheathing
37
Length - width
Hip roof ridge length
38
Common run x SGF45
Hip rafter LL
39
Common run + OH X SGF45
Hip rafter TLL
40
Common run + OH X SGF45 X4 rafters
Total Length of hip rafters needed for hip roof
41
Length/o.c. +1 X 2 sides + 2 piba rafters
# of Hip roof Common rafters
42
Even though hip roof ends are “open” why do we add 1?
Hip roof needs even spacing at hips. Almost always has odd spacing along the ridge, so need to account for an odd space that must be filled.
43
Length +2OH Width +2OH X 2 sides each
Hip roof rough fascia
44
Minor run + projection + overhang
Minor gable roof ridge
45
Minor hip roof projection =
Minor hip ridge
46
Projection width/2
Minor common run
47
Projection offset from main building =
Hip valley cripple run
48
Main perimeter + projection x 2 sides
Intersecting roof rough fascia **account for gable ends not being fascia
49
Ridge length/o.c. + 1 to close off
# of Collar ties for hip roofs
50
Length + 2OH x width + 2OH (area) X SGF90
Roof sheathing
51
Perimeter/drip edge length
Drip edge material needed
52
WHERE DO WE FIND EAVES on a gable roof?
2 long sides, NOT gable ends
53
Where do we find EAVES on HIP roofs?
All 4 sides
54
Length/o.c. -1 not closed off + 2 gable end trusses
Regular trusses + gable end trusses
55
Length x 4
Truss lateral bracing
56
Exterior wall area -openings
Exterior insulation
57
Length x width (area)
Ceiling insulation/drywall
58
Interior wall length X wall height X 2 sides
Interior drywall
59
Perimeter x wall height
Exterior wall area
60
2x ( (Width + 2OH X SGF90) + (Length + 2OH)
Gable roof fascia perimeter
61
Fascia perimeter x OH
Soffit material
62
Fascia perimeter ALSO =
Finished fascia material
63
Length/o.c. + 1 close off Width/o.c. + 1 close off **repeat on similar sides # of x OH
Eaves lookout material **DO NOT calculate wave lookouts for gable ends; separate calculation
64
- 3m^2?
Opening areas > or = to subtract from gross wall area (perimeter x wall height)
65
Width/2 + OH X Roof rise
Gable end area for siding
66
NBC minimum wood siding lap =
1” 25mm
67
Wood siding width - lap = max exposure Wall height/maximum exposure = # or whole rows Wall height/whole rows =
Actual exposure of wood siding
68
Wall area/actual exposure
# of lineal material for wood siding
69
100mm =
Overlap for sheathing membrane **account for area a roll covers…NOT full roll, must subtract 100mm from width
70
Walls @ HORIZONTAL soffit Underneath window openings
Where we find undersill
71
Opening PERIMETERS (including doors) Gable end @ rake
All potential J-trim locations
72
Perimeter of building ALSO = (Finish material support)
Starter strip
73
Combine all opening widths
Flashing
74
DTLF/FO
Unit rise/unit run
75
Total rise/desired unit rise
Actual # of risers
76
Total rise/actual # of risers
Actual unit rise
77
Total risers - 1
Total runs
78
455 - unit rise
Unit run
79
Unit rise/x = 7/11
Unit run
80
FO + HF + HA
RO
81
DTLF - floor thickness
Head room
82
Wall —> wall - top landing - bottom landing
Total run of limited run stairs
83
Partial FO + OS
FO of straight stair with landing
84
Landing size - unit run
Landing Offset
85
Round up partial finished opening on stairs with landing?
No
86
Round up landing finished opening on L-shaped stair?
Yes
87
DTLF - Landing down
Landing drop **”B” side of L-shaped stair
88
LFO =
Compare landing drop to unit rise/unit run
89
Unit rise and unit run hypotenuse used for?
Hypotenuse x # of RISERS = backing stringer length Hypotenuse x # of RUNS = notched stringer length

Y2: Carpenter Math (1 decks)

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