Layout of the Connection File
- Last UpdatedDec 03, 2025
- 4 minute read
The file is a free format text file where the definition of each connection code requires four numbers.
It is recommended to define one connection code in one line. The numbers should be separated by at least one blank.
Formally, the layout may be described in the following way:
<input file>::=
(<user code> <type> <dist> <offset>) (1 ...100)
<user code> is a number in the range 1-9999 that should be used by the designer. It must be unique within the file but may very well be equal to one of the default codes. In that case the standard code is redefined.
<type> defines the main type of connection. A picture of each type of connection is enclosed below.
|
<dist> |
Distance between the profile end and the component it is connected to. > 0 Gap (clearance) = 0 Abutting < 0 Overlap <dist> is irrelevant for <type>=4. <dist> <=0 for <type> >=3. |
|
<offset> |
Offset of the planes of the profiles. Relevant only for <type>=1. >0 Offset in the direction of the material (flange) of the profile to which the connection takes place <0 In the opposite direction. |
<type>=1 connect to the edge of another profile with the material (flange) in the same direction as the current profile.

Figure 5:1. Connection type 1, examples.
The table below shows the in-built connection codes of type 1 without any offset,
sorted on gap..
The table below shows the in-built connection codes of type 1 with tight connection
(dist=0) and offset, sorted on offset.
|
Dist |
Code |
|---|---|
|
0 20 25 30 50 60 75 85 100 125 150 175 200 225 250 |
4 30 44 83 3 35 2 36 1 37 38 39 41 42 43 |
|
Offset |
Code |
|
5 8 10 12 15 |
5 6 7 8 9 |
<type>=2 connect to profile edge, but with the material in different directions.

Figure 5:2. Connection type 2, examples.
The table below shows those in-built connection codes of type 2 that overlap the profile they are connected to (that means, have a negative value of dist). They have no offset. They are sorted on overlap.
|
Overlap |
Code |
|---|---|
|
30 40 50 65 70 75 100 150 200 250 300 350 400 450 500 550 600 |
81 31 13 46 82 47 20 21 22 23 24 25 26 27 28 29 30 |
The table below shows the in-built connection codes of type 2 that do not overlap but has a gap relative to the profile connected to, sorted on gap. They have no offset.
|
Dist |
Code |
|---|---|
|
40 50 75 100 |
33 12 11 10 |
<type>=3 connect the end of one profile to the flat side of another profile (or possibly to the outer contour of the panel).

Figure 5:3. Connection type 3.
The table below shows the in-built connection codes of type 3, sorted on gap.
|
Dist |
Code |
|---|---|
|
0 |
15 |
<type>=4 connect the profile end to the end of another profile. The default code for this is 40 (tight connection).

Figure 5:4. Connection type 4.
.
|
Dist |
Code |
|---|---|
|
0 |
40 |
<type>=5 connect the end of a profile to surface. The table below shows the in-built connection codes of type 5, sorted on gap.

Figure 5:5. Connection type 5.
.
|
Dist |
Code |
|
|---|---|---|
|
0 |
70 |
|
|
400 |
55 |
|
|
<dist> |
Distance between the profile end and the component it is connected to. |
|
|
> 0 Gap (clearance) = 0 Abutting < 0 Overlap |
||
|
<dist> is irrelevant for <type>=4. |
||
|
<dist> <=0 for <type> >=3. |
||
|
<offset> |
Offset of the planes of the profiles. Relevant only for <type>=1. |
|
|
>0 Offset in the direction of the material (flange) of the profile to which the connection takes place |
||
|
<0 In the opposite direction. |
||