Steel Building Details
Stub Column
Steel Building W/ Stub Columns
C-channel Or Purlin To Attach The Endwall Sheeting
To Above The Bi-fold Door
Lateral
Bracing
Side
Column
Stub Columns
Overall
Height Of
Bi-fold Door
Clear
Opening
Height
Door rolls Up
On Face Of
Side Column
Endwall
Building
Main Frame
Steel Building Endwall Details
Building's Side Columns
Must Be Strong Enough
To Support The Bifold
In All Positions
Stub Columns
Heavy Structural
Steel
Back Bracing
Very Important
SIDE COLUMNS
Steel Building Details - Callouts
Lateral Brace Back To Next Main Frame
Stubs Should Be Heavy
Structural Steel
Endwall Building Main Frame
C-channel Or Purlin To Attach The
Endwall Sheeting To Above The
Bi-fold Door
Stub
Columns
Stubs Should Stop Here
SIDE COLUMN
Door Rolls
Up Side
Column
Overall
Height Of
Bi-fold Door
Clear
Opening
Height
Stubs Do Not Have
To Hang Down Any Lower
(not Needed)
Placing Header Within Mainframe
Door
Column
Door Column
Header Plate And The
Door Column Must Be
Flush
Dotted Lines Represent The
Header Plate
Stubs Welded Or Bolted To The Main Frame Or The
Continuous Header To Support The Door Header Plate
Main Building
Frame
Endwall Sheeting Above
The Bi-fold Door
Finished Floor
- Clear Opening - Between Columns
- Distance To Stay Back With The Sheeting
Attaching Header Using Stub Ends
Stubs Welded Or Bolted To The Main Frame Or The Continuous Header To
Support The Door Header Plate. The Door Can Also Be Attached To The
Vertical Stubs Only Leaving The Continuous Header Off, Just Another Way
To Support The Door Frame.
Header Plate And The Door Column Must Be Flush.
Main Building
Frame
Door
Column
Endwall Sheeting Above The Bi-fold Door
Door Column
Finished Floor
- Clear Opening - Between Columns
- Distance To Stay Back With The Sheeting
Bi-Fold Door Mainframe Endwall
Main Frame
Continuous Header
For the Bi-Fold Door
Back Brace Square Tubing
Connects two Main Frames
Stub Column
That attaches to the
Continuous Header
to the Main Frame
Header Within The Main Frame
Side Column The Bi-Fold
Door rolls up on
Side Column &
Continuous Header
Faces must be flush
Maximize your Clear Opening height by placing your Header within the Main Frame
Bi-Fold Door Mainframe Endwall - Below Main Frame
Main Frame
Continuous Header
For the Bi-Fold Door
Back Brace Square Tubing
Connects two Main Frames
Stub Column
That attaches to the
Continuous Header
to the Main Frame
Side Column
The Bi-Fold Door
rolls up on
Side Column &
Continuous Header
Faces must be flush
Header Positioned Below The Main Frame
Steel Building Details - Side View
Lateral Bracing
Stub Column
Side Column
Top Of
Header
Overall
Height Of
Bi-fold Door
Clear
Opening
Bottom
Of Stub
Steel Building Details - Side View
Continuous Header
For the Bi-Fold Door
Stub Column
Attaches to the
Continuous Header
to the Main Frame
Side Column
The Bi-Fold Door
rolls up on
Main Frame
For the End Wall
A = The Distance
From the face of the
End Wall to the center
of the Main Frame
B = The Distance
From the face of the
Building Line to the
center of the
Main Frame
Main Frame
Side View
Back Brace
Square Tubing
Connects two
Main Frames
Diagonal Back Brace
Square Tubing
To Next
Main Frame
Main Frame
Main Frame Set Back from the Face of the End Wall
20' - 30'
May be any distance
from Main Frame
to Main Frame
Steel Building Details - Top View
Main Frame Building
Main Frame Rafter
Building Line
Bi-Fold Door End Wall
(Exterior Bi-Fold Door Frame)
Bi-Fold Door
Frame mounts
on the Face of
the Building
Door Side Column
Steel Building Details - Top View
Main Frame Building
Main Frame Rafter
Building Line
Bi-Fold Door End Wall
(Recessed Bi-Fold Door Frame)
Door Side Column
Commercial Doors - Endwall Header Placements
Example 1
Roof support
Lateral Support
Roof Sheeting
Endwall Beam
Side View
Header Channel
Schweiss Bi-Fold Doors can fit any steel buildings, old or new, providing the commercial
door that suits your needs.
Rake Angle
Building Sheeting
3 x 4 Header
Finished Floor
Center Hinge
Example 2
Lateral Support
Roof Support
Roof Sheeting
Endwall
Beam
Side View
Header Plate
Rake Angle
Building Sheeting
3 x 4 Header
Ceiling Height
Clear Opening
Finished Floor
Steel Building Details
I - Beam Column
Column Follower
Single Roller
Door Frame
Tube Steel Column
Side Rail
Single Roller
Weld
Door Frame
Wind Rail
Door Placement
(A) FLUSH MOUNT
Door shall be mounted flush with exterior walls of building - Select one.
Bi-Fold Door Frame
Building Line
Inside of Building
Sheeting is on the same plain
Recessed Door - Layout
Side Wall Girt
Steel
side column
Top View
Outside of Building
(B) FACE MOUNT
Door shall be mounted on the exterior walls of building - Select one.
Bi-Fold Door Frame
Building Line
Inside of Building
Sheeting is offset
Standard Header - Layout
Side Wall Girt
Building
Column
Top View
Outside of
Building
