Greenheck NEMA-1 User Manual

Sidewall Propeller Fans

Belt and Direct Drive

Exhaust, Supply and Reversible

July

2009

Sidewall Propeller Fans

Greenheck’s sidewall propeller fan line is the ideal
choice for factory and warehouse applications
where high volumes of air and low pressures are
required. From general ventilation to industrial
duty, the range of construction and performance
capabilities offered in this catalog represent the
most comprehensive sidewall propeller fan line in
the industry.

Performance spans the range between 300
to 87,000 cfm (510 to 147,814 m

3

/hr) with static

pressures to 1.0 in. wg (249 Pa). Fan sizes range
from 8 to 54 inches (203 to 1372 mm) for direct drive
and 20 to 72 inches (508 to 1829 mm) for belt drive.
Regardless of fan size, performance or duty level,
all Greenheck sidewall propeller fans are built to
perform with the same high standards of reliability
and durability.

All models are available in exhaust or supply
arrangements. Propellers are available in fabricated
steel, fabricated aluminum or cast aluminum. Drive
frames and panels are constructed to match the
level of duty and the motor size from the smallest
low volume model to the largest industrial duty fan.

There is a wide variety of fans to choose from
including:

• Three airflow directions; exhaust, supply

and reversible

• Both belt drive and direct drive fans

• Three levels of construction from commercial

to industrial

• Multiple blade designs for low sound and

optimum efficiency

Quick Delivery
and Quick
Build Programs

Greenheck’s Quick Delivery Program
provides many options to help you meet your
project’s schedule. Stocking warehouses and
distribution centers around the world ensure same­day pickup and same-day shipment for orders in by
2 p.m. (CST). Hundreds of custom products can be
manufactured through Quick Build in just days.

For available options and accessories please refer to
the Greenheck Stock & Quick Build Catalog.

Leading Edge
Technical Support

When product and IOM

(Installation, Operation and
Maintenance Manual) information is needed, our
products are supported by the industry’s best
product literature, electronic media and Computer
Aided Product Selection (CAPS) program.
You’ll also find this information on our Web site at

www.greenheck.com

Our national and international representative
organization provide personal service and expertise.
To locate your nearest Greenheck representative,
call 715-359-6171 or visit our Web site at

www.greenheck.com.

Greenheck Fan Corporation certifies that the SB, SBC, S1, S2 and
SC3 models shown herein are licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed
in accordance with AMCA Publication 211 and AMCA Publication
311 and comply with the requirements of the AMCA Certified
Ratings Program.

Table of Contents

Model Comparison . . . . . . . . . . . . . . . . . . . . . . . . . 3

Basics of Fan Selection . . . . . . . . . . . . . . . . . . . . . 4

Mounting Options . . . . . . . . . . . . . . . . . . . . . . . 5-10

Options and Accessories for Mounting Options . 11

Dimensions for Sidewall Propeller . . . . . . . . . 12-13

Dampers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15

Accessories and Options . . . . . . . . . . . . . . . . . . . 16

Model Number Code . . . . . . . . . . . . . . . . . . . . . 17

Direct Drive Construction & Material Data . . . . 18

2

Sidewall Direct Drive, Sidewall Belt Drive, Sidewall
Belt Driven Cast and Sidewall Cast models
for electrical (UL/cUL 705) File no. E40001

*UL is optional and must be specified

are listed

Belt Drive Construction & Material Data . . . . . .. 19

Direct Drive Dimensional Data . . . . . . . . . . . . . . 20

Belt Drive Dimensional Data . . . . . . . . . . . . . . . . . 21

Direct Drive Level 1 . . . . . . . . . . . . . . . . . . . . . . . . 22

Direct Drive Level 2 . . . . . . . . . . . . . . . . . . . . . . . . 23

Direct Drive Level 3 . . . . . . . . . . . . . . . . . . . . . . . . 24

Direct Drive Level 3 Reversible. . . . . . . . . . . . . . . 25

Belt Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-38

Belt Drive Specifications. . . . . . . . . . . . . . . . . . . . 39

Direct Drive Specifications . . . . . . . . . . . . . . . . . . 40

Model Comparison

Direct Drive Fan Selection

Three propeller and drive frame combination levels are available with either
a L or H type propeller. Models SE1 and SS1 are designed for smaller size
applications where lower volumes and static pressures are found. Models
SE2, SS2, SCE3 and SCS3 are designed and constructed for applications
with higher volumes and static pressures.

Construction

Levels

Fabricated
aluminum
propeller riveted

Level 1

to the hub

Fully welded
and gusseted
steel blade and

Level 2

hub design

Cast aluminum
airfoil blades

Exhaust Supply Reversible

SCE3 SCS3 SCR3

Level 3

All measurements given in inches (mm), cfm (m3/hr) or in. wg (Pa)

Models

SE1 SS1 NA

SE2 SS2 NA

Size Range

wheel diameter

8 to 24 in.

(203 to 610)

16 to 54 in.

(406 to 1372)

24 to 54 in.

(610 to 1372)

Performance

Up to 6,700 cfm

(11,383) and up to

.625 in. wg (156)

Up to 45,000 cfm

(76,455) and up to

1 in. wg (249)

Up to 45,000 cfm

(76,455) and up to

1 in. wg (249)

Belt Drive Fan Selection Propeller Types

Three propeller drive frame construction levels with either a L or H type
propeller. The application requirements for sound and static pressure
determine propeller type. Propellers are available in fabricated steel,
fabricated aluminum or cast aluminum.

Construction

Levels

Galvanized steel
blades riveted
to the hub

Level 1

Dual thickness
galvanized steel
blades riveted

Level 2

to the hub

Fabricated, fully
welded/gusseted
steel blade and
hub design

Cast aluminum

Level 3

airfoil blades
and hub design

Exhaust Supply Reversible

SBE-1 SBS-1 NA

SBE-2 SBS-2 NA

SBE-3 SBS-3 NA

SBCE SBCR SBCR

Models

Size Range

wheel diameter

20 to 54 in.

(508 to 1372)

20 to 60 in.

(508 to 1524)

24 to 72 in.

(610 to 1829)

24 to 72 in.

(610 to 1829)

Performance

Up to 30,000 cfm

(50,970) and up to

.625 in. wg (156)

Up to 53,000 cfm

(90,048) and up to

.75 in. wg (19)

Up to 87,000 cfm

(149,513) and up to

1 in. wg (249)

Up to 87,000 cfm

(149,513) and up to

1 in. wg (249)

Level 1
Sizes 8 to 10

Level 2

Level 3
Fabricated

Level 1
Sizes 12 to 24

Level 3

Level 2Level 1

Level 3
Cast Aluminum

All measurements given in inches (mm), cfm (m3/hr) or in. wg (Pa)

Belt Drive Blade Designs

H Type Propeller:

• Straight, moderately pitched blade.

• Designed for applications where static

pressures are above 0.5 in. wg

• These propellers typically run at higher

RPMs and generate slightly higher
sound levels than the “L” propellers.

(13 Pa).

L Type Propeller:

• Swept, steeply pitched blade design.

• Propellers typically run at lower RPMs

and generate low sound levels.

• The best selection for sound critical

applications or applications that require
the best combination of both air and
sound performance.

• Typically used when the static pressure

is 0.5 in. wg

(13 Pa) or less.

3

Basics of Fan Selection

The first consideration in any fan selection is the
amount of air to be moved and the resistance to
this air movement. With specific performance and
application criteria in mind, propeller fan selections
typically require decisions based on the following
criteria.

Belt Drive vs. Direct Drive

Belt drive fans offer the ability to adjust fan speed for
system balancing if necessary. They also offer more
flexibility in speeds and motor selections. In a cost
comparison, belt drive fans are typically less costly
than comparable size direct drive fans with low
speed motors.

Direct drive fans are often preferred for jobs where
maintenance access is difficult. Maintenance costs
are generally lower with direct drive fans, since there
are no belts or bearings to replace and no pulleys
to adjust.

Larger Fans vs. Smaller Fans

In most applications, several fans may meet the
specified airflow and pressure requirements. Just
as larger fans tend to turn slower and generate less
sound, they also tend to have higher initial costs but
lower operating costs. Smaller fans, with their higher
speeds, have more stable performance curves, lower
initial costs, higher sound levels, and higher
operating costs.

Low Sound vs. High Static Pressure

Fans selected for high static pressures run at higher
speeds and produce higher tip speeds, resulting
in higher sound levels. Conversely, in low pressure
applications, fans generally run at lower speed
producing lower sound levels and are recommended
for sound sensitive applications.

How Accessories Affect Static Pressure

All accessory losses must be accounted for when
calculating static pressure load. In most cases
dampers, guards and weatherhoods actually
add very little to the total system pressure. This
means that propeller fans used in conjunction with
common accessories can typically be specified
with low pressure capabilities below .375 in. wg
(93 Pa). However, in cases where airflow velocities
exceed 1,500 ft/m (7.6 m/s) through the damper
or where filters are used, static pressure loss may
be significant. For more specific information on
pressure losses due to accessories, refer to pages
8, 9 and 10.

Motor Service Factor

Motors for sidewall propeller fans are cooled by
the airstream. With an uninterrupted flow of cooling
air, motors may be operated in their service factor
range (up to 20% above the motor’s nameplate
horsepower) without damage due to overheating.
Lesser overloads are recommended for applications
using totally enclosed or explosion resistant motors.

Belt drive performance tables in this catalog
show two speed selections for each propeller
type (L or H) at a given motor hp. The first selection
is at 1.0 Bhp service factor. The second speed
selection is at 1.2 Bhp service factor. Direct drive
performance tables show Bhp levels with service
factors ranging up to 1.2 Bhp. When a selection
at 1.2 Bhp service factor is not desirable for
the application, specify the next higher motor
horsepower.

4

Mounting Options Overview

Mounting Option Description Page

Standard Wall

Mounting

Standard

Horizontal

Mounting

Wall Collar

Optional

Accessories

Fan can be mounted
directly to a wall.

Fan can be
horizontally mounted
to move air up or
down.

The wall collar is an
easy way to mount the
sidewall propeller fan
and its accessories.

6

6

7

Wall Housing

Filtered Supply

Wall Housing

Optional

Accessories

The wall housing is
the easiest and most
flexible way to mount
the sidewall propeller
fan and all of its
accessories.

The filtered supply
wall housing is a
flexible and easy way
for installations where
filtering is required.

7

10

5

Airflow

Airflow

Hangers by
others

Wall

Housing

C

Standard Mounting Options

wall

spacer

guard

wall

damper

Standard Wall Mounting

The split drawing (right) illustrates the typical
ways of mounting fans directly to the wall
when a wall housing or collar is not used.

For exhaust fans, there is a minimum
dimension (M) which must be maintained
between the propeller and damper, or guard
to achieve optimum performance (failure to

meet this minimum dimension will result in
loss of fan performance, increased noise and

M

shortened fan and damper life). There is also
a minimum required wall opening dimension
(W.O.) to allow the venturi to fit into the
wall opening.

The chart at far right provides the minimum
“M” and wall opening dimensions.

This installation may require a spacer (by others) between the fan and
wall to achieve the minimum “M” dimension.

Fans can be mounted directly to a wall only if the wall is of sufficient
thickness to meet the minimum “M” dimension as shown here.

Standard Horizontal Mounting

Horizontally mounted fans are available for
applications requiring vertical airflow.

Modifications Shown in Diagrams

A Grooved shaft with snap rings (belt drive fans)

Motor pulley retaining hardware (belt drive fans with

B

motor on bottom)

Reinforcing angles on fan panel (all fans with motor

C

on bottom)

Propeller retaining hardware - not shown (direct drive

D

fans with motor on top)

NOTE: Protective guarding is also required below the fan for safety. When guarding is

not ordered with the fan, it must be supplied by the installer. When specifying
a fan for horizontal mounting, the motor location (top or bottom) and airflow
(upward or downward) are required information.

Typical applications include mounting fans in
ductwork or plenums as transfer fans or suspending
them from the ceiling in a wall housing for use
as recirculation fans. Both belt and direct drive
fans can be horizontally mounted. Motors can be
mounted on top or on bottom with airflow up or
down. Specify configuration best suited for access
and service.

Horizontally mounted fans are put under different
stresses than fans mounted in a wall. Construction
modifications are required depending on motor
location (top or bottom) and whether the fan is belt
or direct drive.

Fan

Size

8 6

10 6 (152) 121⁄2 (318)

12 7 (178) 141⁄2 (368)

14 8 (203) 161⁄2 (419)

16 9 (229) 181⁄2 (470)

18 10 (254) 201⁄2 (521)

20 12 (305) 221⁄2 (572)

24 13 (330) 261⁄2 (673)

30 13 (330) 321⁄2 (826)

36 14 (356) 381⁄2 (978)

42 15 (381) 441⁄2 (1130)

48 16 (406) 501⁄2 (1283)

54 17 (432) 561⁄2 (1435)

60 19 (483) 621⁄2 (1588)

72 19 (483) 741⁄2 (1892)

All dimensions given in inches (mm).

M

(152) 10

Wall

Opening

1

⁄2 (267)

Motor on Top

Air Blowing Upward

Supply

Guarding is strongly

recommended

6

Fan

A

Airflow

Motor on Top

Air Blowing Downward

Exhaust

Fan

Airflow

D

Hangers by
others

Motor on Bottom

Air Blowing Upward

(Shown as suspended
installation with fan
mounted in wall
housing.)

Wall

Housing

Exhaust

Fan

Airflow

B

C

A

Airflow

Guard or

Diffuser

Motor on Bottom

Air Blowing Downward

(Shown as suspended
installation with fan
mounted in wall
housing.)

Supply

Fan

Mounting Options

Wall Collar Mounting

Wall collars offer an alternate
method for mounting sidewall
propeller fans and the
optional accessories shown
here. Standard construction
is of galvanized steel (painted
steel is optional) with heavy
gauge mounting flanges and
prepunched mounting holes.

Note: Wall collar, fan, damper and guards

ship completely factory assembled
except when ordered as a kit.
Weatherhood ships loose.

Wall Housing Mounting

Wall housings are the safest, most efficient and sturdy platform for
mounting sidewall propeller fans and their optional accessories. Wall
housings allow for a wide range of mounting arrangements to meet
specific applications. It is constructed of galvanized steel (painted steel
optional) with heavy gauge mounting flanges and prepunched mounting
holes. Protective guards of welded steel wire completely protect the
drive side of the wall housing. Guards are coated with Permatector™, a
thermal setting polyester urethane. Other paint finishes are also available.
Wall housing guards that meet the OSHA requirements are also available.

The wall housing is designed to reduce installation time
and provide maximum installation flexibility. Attached
accessories such as backdraft dampers, guards
and weatherhoods may mount to either end. As a
result a wide variety of configurations are available
to accommodate the needs of the system
designer.

NOTE: Weatherhoods are strongly recommended
for all configurations to help prevent moisture
infiltration. Mounting flange, damper and guard
ship factory mounted on all arrangements as
shown except when ordered as a kit.

Note: Wall housing, fan, damper and guards

ship completely factory assembled
except when ordered as a kit.
Weatherhood ships loose.

7

Mounting Options

Wall

INTERIOR EXTERIOR

Closure Angles

Mounting
Angles

INSIDE OUTSIDE

Louver Mounting

INSIDE OUTSIDE

10 inch (254)

minimum*

Where an exterior louvered appearance is desired, a variety of louvers
can be used in conjunction with the wall housing or wall collar as
shown. However, since louver free area is less than half of the wall
opening, pressure drop across the louver must be considered when
specifying the fan. The graph below shows louver pressure drop for
Greenheck model EDJ-430 based on cfm and fan size.

For additional louver information visit www.greenheck.com or refer
to the catalog Louver Products: Severe Duty, Stationary, Operable.

*Can be smaller based on fan size

Mounting Arrangements for Interior Service Applications

The arrangements shown below are the most commonly
used and should be considered first for most applications.
The choice of flush interior or exterior mounting are based
on appearance or space considerations.

Belts, pulleys and motors are serviced from inside the
building with these arrangements. See reverse mounting
arrangements on page 9 for applications requiring service
from outside the building.

Note: To determine the correct arrangement required when ordering—specify
arrangement by the drawing number 1A, 2A, 1B or 2B as shown in the diagrams.

Flush exterior

1A Exhaust

1B Supply

Exhaust

Supply

Wall

Interior

Wall

Diffusers Wall
Housing Mounted
‑ Manual Operator

Diffusers are
constructed with heavy
gauge galvanized steel
frames, blades and
prepunched mounting

Flush interior

flanges. They are designed to mount to
the interior end of the wall housing when

Wall

Exterior

Interior

2A Exhaust

Exterior

used in the supply configuration. Manual
quadrants set the angle of the blades
to deflect air in 1, 2 or 4 directions.

Exhaust

Closure Angles

An extra set of

Supply

Wall

2B Supply

mounting flanges
are available for field
installation to close
off the interior wall
opening for a finished
appearance.

8

Mounting Options

Interior

Exterior

Supply

Exhaust

Wall

Wall

Supply

Exhaust

Wall

Wall

Interior

Exterior

Arrangements for Exterior Service Applications

Reverse Mount

Reverse mounting a wall housing simply
involves installing the wall housing through
the wall opening in the opposite direction of
the configurations shown. This results in an
opposite effect on fan function. An exhaust fan
in a wall housing will function as a supply fan
when the housing is reverse mounted.

Example: When the exhaust arrangement shown
as 1A is reversed (shown as 1A-R) the same
unit now becomes a supply arrangement. The
construction, fan position and mounting angle
location in both configurations remain identical.

EXHAUST FAN in Wall Housing with Gravity
Damper and Weatherhood

Airflow

Flush interior

1A-R Supply

Wall

Interior

Exterior

Supply

Exhaust

Wall

Note: To determine the correct arrangement required when ordering—specify
arrangement by the drawing number 1A, 2A, 1B or 2B as shown in the diagrams.

1B-R Exhaust 2B-R Exhaust

20"

Flush exterior

2A-R Supply

Supply

Exhaust

Wall

Interior

Wall

Exterior

SUPPLY FAN in Wall Housing with Gravity
Damper and Weatherhood

Airflow

Static Pressure

Pressure Loss

CFM x 1000

20"

Static Pressure

Pressure Loss

CFM x 1000

9

Mounting Options

Wall

INTERIOR EXTERIOR

Closure Angles

Mounting
Angles

Filtered Supply Wall Housing Mounting

Filtered supply wall housings are available
in seven sizes for fans ranging from size
24 to 54 inches (610 to 1372 mm). They
are designed with the draw-thru concept
to achieve the highest filter and fan
efficiencies.

Standard construction is galvanized steel
(painted steel optional). Mounting flanges
are factory installed for either flush exterior
or flush interior. Permanent 2-inch (51 mm)
washable filters are accessed through a
bolted panel and can be easily removed
for cleaning.

All accessory items available with the
standard wall housing can be used with
the filtered supply wall housing.

Diffusers ‑ Wall Housing
Mounted ‑ Manual Operator

Diffusers are constructed with
heavy-gauge galvanized steel
frames, blades and prepunched
mounting flanges. They are
designed to mount to the interior
end of the wall housing when used
in the supply configuration. Manual
quadrants set the angle of the
blades to deflect air in 1, 2 or
4 directions.

Size Filter Size & Quantity

1

24 (4) 23

30 (4) 245⁄8 (625) x 191⁄4 (489)

36 (6) 231⁄4 (591) x 221⁄8 (562)

42 (6) 241⁄8 (613) x 251⁄8 (638)

48 (12) 23 1⁄4 (591) x 183⁄4 (476)

54 (12) 231⁄4 (591) x 203⁄4 (527)

Filters are 2 inch (51 mm) nominal thickness.
Above filter sizes are actual dimensions.
All dimensions given in inches (mm).

⁄4 (591) x 161⁄4 (413)

Closure Angles

An extra set of mounting flanges
are available for field installation
to close off the interior
wall opening for a finished
appearance.

FILTERED SUPPLY FAN in Wall Housing with Filter
Bank, Gravity Damper and Weatherhood

10

Note: This chart is for manual
calculations only. CAPS has
filter losses built into the
selection tool when the
filtered housing option is
selected.

20"

Static Pressure

Pressure Loss

CFM x 1000

Options & Accessories

for Mounting Options

Option or Accessory

Motor Side Guard

Protective guards of welded steel wire completely
enclose the motor and drive side of the fan. Guards are
coated with Permatector, a thermal setting polyester
urethane. Other paint finishes are also available. Sizes
20 and larger only.

OSHA Motor Side Guard

Protective guards of expanded metal screen in
structural steel frames are available to completely
enclose the motor and drive side of the fan.

Mounting Option

Standard Wall

Mounting

Standard

Horizontal

Mounting

Wall Collar

Wall Housing

Filtered Supply

Page Number p. 6 p. 6 p. 7 p. 7 p. 10

 

 

Wall Housing

Weatherhood

Weatherhoods shield wall openings and dampers from
rain and snow. Weatherhoods are shipped unassembled
in kit form for field assembly. Construction is of
galvanized steel with wire mesh birdscreen. Mounting
flanges have prepunched mounting holes. 45° turn
down is for exhaust and 90° turn down is for exhaust
and supply. Options include aluminum construction,
insect screen and painted finish. The weatherhood
cannot be used with the damper guard option.

Damper Guard

Damper guards meet the OSHA requirements
completely enclose the damper or wall openings on
the discharge side of the fan. They are constructed of
expanded galvanized steel screen in galvanized steel
frames. Mounting flanges have prepunched mounting
holes. Options include aluminum construction and
painted finish. The damper guard cannot be used with
the weatherhood option.

Dampers

Used alone or in conjunction with the wall housing or
wall collar, a complete line of dampers are available for
exhaust or supply configurations.

   

   

   

11

Dimensions for Sidewall Propeller

OSHA Side Guard

Motor Side Guard

Damper Guard

90 degree Weatherhood

45 degree Weatherhood

Options and Accessories

Motor Side Guard OSHA Side Guard Damper Guard

B

G+

45° Weatherhood

E

A

90° Weatherhood

F

N

J

D

CH

P

Weatherhood F Dimension

45º 90º

8

10

12

14

16

18

20

24

30

36

F

42

48

54

60

72

12

(305)

141⁄4

(362)

167⁄8

(429)

187⁄8

(479)

207⁄8

(530)

227⁄8

(581)

247⁄8

(632)

313⁄4

(806)

377⁄8

(962)

437⁄8

(1114)

497⁄8

(1267)

56

(1422)

621⁄4

(1581)

683⁄8

(1737)

803⁄4

(2051)

123⁄4

(324)

147⁄8

(378)

171⁄2

(444)

191⁄2

(495)

211⁄2

(546)

231⁄2

(597)

255⁄8

(651)

331⁄8

(841)

391⁄4

(997)

451⁄4

(1149)

511⁄4

(1302)

573⁄8

(1457)

635⁄8

(1616)

693⁄4

(1772)

821⁄8

(2086)

Motor Side

Size

8 — —

10 — —

12 — —

14 — —

16 — —

18 — —

28

20

(305)

34

24

(305)

40

30

(305)

36

42

48

46

(305)

53

(305)

59

(305)

54 — —

60 — —

72 — —

All dimensions given in inches (mm).

12

Guard

OSHA Side

Guard

Damper Guard

Damper

Weatherhood

B G+ A H C D E J N P Width

1

⁄8

13

(305)

15

(305)10(305)

95⁄8

(305)

1

⁄4

18

(305)12(305)

20

(305)12(305)

22

(305)12(305)

1

⁄8

24

(305)12(305)6 (152)

173⁄8

(305)

191⁄2

(305)

221⁄2

(305)

1

⁄8

237⁄8

(305)

1

⁄8

257⁄8

(305)

1

⁄8

287⁄8

(305)

257⁄8

(305)

173⁄4

(305)

317⁄8

(305)20(305)

377⁄8

(305)

437⁄8

(305)

497⁄8

(305)

557⁄8

(305)

61

(305)

67

(305)

81

(305)

7

⁄8

7

⁄8

7

⁄8

213⁄4

(305)

241⁄4

(305)

281⁄2

(305)

281⁄4

(305)9 (229)

341⁄4

(305)

341⁄4

(305)

341⁄4

(305)

51⁄2

(140)

61⁄2

(165)

53⁄8

(137)

63⁄8

(162)

63⁄4

(171)

61⁄2

(165)

63⁄8

(162)

61⁄2

(165)

63⁄4

(171)

10

(254)

71⁄2

(191)

71⁄4

(184)

71⁄2

(191)

101⁄4

(260)

121⁄4

(311)

141⁄4

(362)

161⁄4

(413)

181⁄4

(464)

201⁄4

(514)

221⁄4

(565)

261⁄4

(667)

321⁄4

(819)

381⁄4

(972)

441⁄4

(1124)

501⁄4

(1276)

561⁄4

(1429)

621⁄4

(1581)

741⁄4

(1886)

10

(254)

12

(305)

14

(356)

16

(406)

18

(457)

20

(508)

22

(559)

26

(660)

32

(813)

38

(965)

44

(1118)

50

(1270)

56

(1422)

62

(1575)

74

(1880)

131⁄4

(337)

147⁄8

(378)

163⁄8

(416)

171⁄2

(445)

193⁄8

(492)

22

(559)

243⁄4

(629)

267⁄8

(683)

291⁄8

(740)

33

(838)

353⁄4

(908)

403⁄8

(1026)

443⁄4

(1137)

483⁄8

(1229)

531⁄4

(1353)

163⁄8

(305)

181⁄2

(305)

203⁄8

(305)

221⁄2

(305)

25

(305)

271⁄2

(305)

293⁄4

(305)

36

(305)

401⁄8

(305)

451⁄2

(305)

491⁄4

(305)

551⁄2

(305)

611⁄4

(305)

661⁄2

(305)

721⁄8

(305)

111⁄4

(305)12(305)

133⁄8

(305)14(305)

155⁄8

(305)

175⁄

(305)

195⁄8

(305)

215⁄8

(305)

235⁄8

(305)

303⁄8

(305)

361⁄2

(305)

421⁄2

(305)

481⁄2

(305)

163⁄8

(305)

183⁄8

(305)

203⁄8

(305)

223⁄8

(305)

243⁄8

(305)

313⁄4

(305)

377⁄8

(305)

437⁄8

(305)

497⁄8

(305)

545⁄8

(305)56(305)

607⁄8

(305)

67

(305)

791⁄2

(305)

621⁄4

(305)

683⁄8

(305)

807⁄8

(305)

101⁄2

(267)

121⁄2

(318)

141⁄2

(368)

161⁄2

(419)

181⁄2

(470)

201⁄2

(521)

221⁄2

(572)

291⁄8

(740)

351⁄8

(892)

411⁄8

(1045)

471⁄8

(1197)

531⁄4

(1353)

591⁄2

(1511)

655⁄8

(1667)

781⁄8

(1984)

Material

Gauge (ga)

Thickness

20

20

20

20

20

20

18

18

18

18

18

18

16

16

12