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Hull and Outfitting

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Endcuts for I-bars

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  • Last UpdatedNov 28, 2025
  • 11 minute read

This section contains endcut types that may be used for I-bars. In all cases the upper and lower flanges are supposed to be equal as far as the shape is concerned. However, they may be of different length.

The figures below associated with each endcut type show one web view and one flange view of the I-bar.

Type 173:

Remark:

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R1

    R2

    17300, a, b[, a4]
    17310, a, b[, a4]
    17320, a, b[, a4]
    17330, a, b[, a4]

    KS10
    KS10
    KS10
    KS10

    16
    26
    35
    50

Type 174:

Code, parameters

R1

R2

17400[, a1, a4]
17410[, a1, a4]
17420[, a1, a4]
17430[, a1, a4]

10
15
35
50

10
15
35
50

Type 175:

Remark:

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above. If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R1

R2

17500, a, b[, c, a4]
17510, a, b[, c, a4]
17520, a, b[, c, a4]
17530, a, b[, c, a4]

KS10
KS10
KS10
KS10

16
26
20010
30015

Type 176:

Remark:

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R1

    R2

    17600, a, b[, c, a4]
    17610, a, b[, c, a4]
    17620, a, b[, c, a4]
    17630, a, b[, c, a4]

    KS10
    KS10
    KS10
    KS10

    16
    26
    35
    50

Type 177:

Remark:

The value given for radius R2 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R1

    R2

    17700, a, b, c[, a4]
    17710, a, b, c[, a4]
    17720, a, b, c[, a4]
    17730, a, b, c[, a4]

    16
    26
    35
    50

    KS10
    KS10
    KS10
    KS10

Type 178:

Code, parameters

17810[, a1, a4]

Type 179:

Remarks:

  1. b=0 (or not given) means that b=R2

  2. a2=0 means that c becomes irrelevant.

    Code, parameters

    R2

    a2

    17910, a[, b, c, a1, a4]
    17920, a[, b, c, a1, a4]
    17930, a[, b, c, a1, a4]
    17931, a[, b, c, a1, a4]
    17940, a[, b, c, a1, a4]
    17941, a[, b, c, a1, a4]
    17950, a[, b, c, a1, a4]
    17951, a[, b, c, a1, a4]

    0
    20
    20
    30
    50
    50
    75
    75

    0
    0
    30
    30
    0
    30
    0
    30

Type 180:

Remarks:

  1. b=0 (or not given) means that b=R1

  2. a2=0 means that c becomes irrelevant

    Code, parameters

    R1

    a2

    18010, a[, b, c, a1, a4]
    18020, a[, b, c, a1, a4]
    18030, a[, b, c, a1, a4]

    0
    20
    30

    0
    0
    0

Type 181:

Remark:

If c = 0 or not given then c will be set to the value of b.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above. If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R1

R2

18100, a, b[, c, a4]
18110, a, b[, c, a4]
18120, a, b[, c, a4]
18130, a, b[, c, a4]
18140, a, b[, c, a4]
18150, a, b[, c, a4]

KS10
KS10
KS10
KS10
KS10
KS10

35
38
50
30010
40010
60015

Type 182:

Remark:

If c = 0 or not given then c will be set to the value of b.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above. If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R1

R2

18200, a, b[, c, a4]
18210, a, b[, c, a4]
18220, a, b[, c, a4]
18230, a, b[, c, a4]
18240, a, b[, c, a4]
18250, a, b[, c, a4]

KS10
KS10
KS10
KS10
KS10
KS10

35
38
50
30010
40010
60015

Type 183:

Remark:

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to sketch above. If R2 < 1000 the R2 defines an arc segment.

Code, parameters

R1

R2

18300, a, b[, a4]
18310, a, b[, a4]
18320, a, b[, a4]
18330, a, b[, a4]

KS10
KS10
KS10
KS10

35
50
20010
30015

Type 184:

Remark:

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS-notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive value greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above. If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R1

R2

18400, a, b[, c, a4]
18410, a, b[, c, a4]
18420, a, b[, c, a4]
18430, a, b[, c, a4]

KS10
KS10
KS10
KS10

16
26
40010
60015

Type 186:

Code, parameters

R1

R2

18610, a[, a4]
18611, a[, a4]
18620, a[, a4]
18621, a[, a4]
18630, a[, a4]
18631, a[, a4]

20
20
30
30
KS10
KS10

0
30
0
30
0
30

Type 187:

Code, parameters

R2

18710, a[, R1, a4]

0

18711, a[, R1, a4]

30

Type 188:

Remark:

b=0 (or not given) means that b=R1.

Code, parameters

R1

18810, a[,b, a4]
18820, a[,b, a4]
18830, a[,b, a4]

20
30
50

Type 191:

Remark:

If b < flange thickness then b will be set to flange thickness.

If c = 0 or c is not given then c will be set to the flange width and ?2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above.

If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R2

a2

19100, a, [b, c, R1, a4]
19110, a, [b, c, R1, a4]

60015
40010

18
30

Type 192:

Remark:

If b < flange thickness + radius R then b will be set to flange thickness + radius R.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R2

    a2

    19200, a, [b, c, R1, a4]
    19210, a, [b, c, R1, a4]

    20010
    30015

    18
    30

Type 193:

Remark:

If b < flange thickness + radius R2 then b will be set to flange thickness + radius R2.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R2

    a2

    19300, a, [b, c, R1, a4]
    19310, a, [b, c, R1, a4]

    16
    26

    18
    30

Type 194:

Remark:

If b < flange thickness then b will be set to flange thickness.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above.

If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R2

a2

a3

19400, a, [b, c, R1, a4]
19410, a, [b, c, R1, a4]

60015
40010

18
30

40
60

Type 195:

Remark:

If b < flange thickness then b will be set to flange thickness.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R2

    19500, a, [b, R1, a4]
    19510, a, [b, R1, a4]

    0
    20

Type 196:

Remark:

If b < flange thickness + radius R2 then b will be set to flange thickness + radius R2.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R2

    a2

    19600, a, [b, c, R1, a4]
    19610, a, [b, c, R1, a4]

    16
    26

    18
    30

Type 197:

Remark:

  • If R2 = 0 then notch will be omitted.

  • If R2 < 0 then notch will be a KS notch

  • If R2 > 0 then notch will be a R notch

    Code, parameters

    R2

    a2

    a3

    19700, a, [c, a1, a4]
    19710, a, [c, a1, a4]
    19720, a, [c, a1, a4]

    0
    30
    -30

    15
    25
    25

    30
    45
    45

Type 198:

Remark:

  • If R1 = 0 then notch will be omitted.

  • If R1 < 0 then notch will be a KS notch

  • If R1 > 0 then notch will be a R notch

    Code, parameters

    R1

    a2

    a3

    19800, a, [c, a4]
    19810, a, [c, a4]
    19820, a, [c, a4]

    0
    30
    -30

    15
    25
    25

    30
    45
    45

Type 199:

Remark:

If b < flange thickness then b will be set to flange thickness.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above.

If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R2

a2

a3

19900, a, [b, c, R1,a4]
19910, a, [b, c, R1, a4]

60015
40010

85
30

40
60

Type 200:

Remark:

If b < flange thickness + radius R then b will be set to flange thickness + radius R.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

    Code, parameters

    R2

    a2

    20000, a, [b, c, R1,a4]
    20010, a, [b, c, R1, a4]

    20010
    30015

    18
    30

Type 201:

Remark:

If b < flange thickness then b will be set to flange thickness.

If c = 0 or c is not given then c will be set to the flange width and a2 will become irrelevant.

The value given for radius R1 has the following meaning:

  • A negative value indicates a KS notch.

  • A positive value less than 1000 indicates a scallop radius.

  • A positive radius greater than 1000 indicates a fillet radius. The radius is received by subtracting 1000.

R2 contains encoded information according to the sketch above.

If R2 < 1000 then R2 defines an arc segment.

Code, parameters

R2

a2

20100, a, [b, c, R1,a4]
20110, a, [b, c, R1, a4]

60015
40010

18
30

Type 202:

Code, parameters

a2

a3

20200, [c, a1,a4]
20210, [c, a1, a4]

16
18

18
30

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