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BCSI-B1 SUMMARY SHEET
Guide for Handling, Installing and Bracing of Metal Plate Connected
Wood Trusses
General Notes
Trusses are not marked in any way to indentifiy the frequency or
location of temporary bracing. Follow the recommendations for handling,
installing and temporary bracing of trusses. Refer to BCSI 1-03
Guide to Good Practice for Handling, Installing & Bracing of
Metal Plate Connected Wood Trusses for more detailed information.
Truss Design Drawings may specify locations of permanent bracing
on individual compression members. Refer to the BCSI-B3 Summary
Sheet - Web member Permanent Bracing/Web Reinforcement for more
information. All permanent bracing design is the responsibility
of the Building Designer.
The consequences of
improper handling, installing and bracing may be a collapse
of the structure, or worse, serious personal injury or death.
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Banding and truss
plates have sharp edges. Wear gloves when handling and safety
glasses when cutting banding.
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Handling
Allow no more than
3" of deflection for every 10' of span.
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Avoid lateral bending.
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Use special care in
windy weather or near
power lines and airports.
Check banding prior to moving bundles

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Pick up verticle bundles
at the top chord.
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Bundles stored on the ground for
one week or more should be raised by blocking at 8' to 10'
on center.
For long term storage, cover bundles
to prevent moisture gain but allow for ventilation.
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Do not store unbraced
bundles upright.
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Do not store on uneven ground.
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Hand Erection
Trusses 20' or less,
support at peak.

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Trusses 30' or less, support at quarter
points.
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Hoisting
Hold each truss in position with
the erection equipment until temporary bracing is installed
and truss is fastened to the bearing points.
Do not lift trusses over 30' by the
peak.
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Hoisting recommendations by truss span
Bracing
Refer to BCSI-B2 Summary Sheet
- Truss Installation and Temporary Bracing
for more information.
Do not walk on unbraced trusses.
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Locate ground braces
for first truss directly in line with all rows of top chord
temporary lateral bracing.
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Bracing for Three Planes of Roof
This bracing method is for all trusses except
3x2 and 4x2 parallel chord trusses.
1) Top Chord
Truss Span
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Top Chord Temporary Lateral Brace (TCTLB)
Spacing
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Up to 30'
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10' o.c. max.
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30' to 45'
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8' o.c. max.
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45' to 60'
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6' o.c. max.
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60' to 80'
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4' o.c. max.
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2) Bottom Chord
3) Web Member Plane
DIAGONAL BRACING IS VERY IMPORTANT
Bracing for 3x2 and 4x2 Parallel Chord Trusses
Refer to BCSI-B7 Summary Sheet
- Temporary and Permanent Bracing for Parallel Chord Trusses
for more information.
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Installing

Construction Loading
Do not proceed with
construction until all bracing is securely and properly
in place.
Do not exceed maxiumum
stack heights. Refer to BCSI-B4 Summary Sheet - Construction
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Maximum Stack Height for
Materials on Trusses
Material
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Height (h)
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Gypsum Board
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12"
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Plywood or OSB
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16"
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Asphalt Shingles
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2 bundles
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Concrete Block
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8"
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Clay Tile
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3-4 tiles high
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Place loads over as many trusses
as possible.
Put loads over load bearing walls.
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Refer to BCSI-B5 Summary Sheet -
Truss Damage, Jobsite Modifications and Installation Errors.
Do not cut, alter, or drill any structural
member of a truss unless specifically permitted by the Truss
Design Drawing.
Trusses that have been overloaded
during construction or altered without the Truss Manufacturer's
prior approval may render the Truss Manufacturer's limited
warranty null and void.
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NOTE: The Truss Manufacturer and Truss
Designer must rely on the fact that the Contractor and crane
operator (if applicable) are capable to undertake the work they
have agreed to do on a particular project. The Contractor should
seek any required assistance regarding construction practices
from a competent party. The methods and procedures outlined
are intended to ensure that the overall construction techniques
employed will put floor and roof trusses into place SAFELY.
These recommendations for handling, installing and bracing wood
trusses are based upon the collective experience of leading
technical personnel in the wood truss industry, but must, due
to the nature of responsibilities involved, be presented only
as a GUIDE for use by a qualified Building Designer or Erection/Installation
Contractor. It is not intended that these recommendations be
interpreted as superior to any design specification (provided
by either Architect, Engineer, the Building Designer, the Erection/Installation
Contractor or otherwise) for handling, installing and bracing
wood trusses and it does not preclude the use of other equivalent
methods for bracing and providing stability for the walls and
columns as may be determined by the truss Erection/Installation
Contractor. Thus, the Wood Truss Council of America and the
Truss Plate Institute expressly disclain any responsibility
for damages arising from the use, application or reliance on
the recommendations and information contained herin.
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