Technical Specifications

E8879.01-119-19
Page 4 of 15
3.5 Test Results
Designer’s Image™ Guardrail with Straight Bracket
Attached to 4x4 Treated Wood Post
Sample No.
Ultimate
Load (lb)
Deviation From
Average
Mode of Failure
1
1442
9%
Bracket broke around rail to post
fastener
2
1197
-9%
Average
1320
Allowable Capacity
1
528
≥ 200 lb

OK
1
Average ultimate load divided by a factor of safety of two and one-half (2.5)
Designer’s Image™ Guardrail with Collar Bracket
Attached to Aluminum Post
Sample No.
Ultimate
Load (lb)
Deviation From
Average
Mode of Failure
1
1609
16%
Bracket failure
2
1174
-16%
Average
1392
Allowable Capacity
1
557
≥ 200 lb

OK
1
Average ultimate load divided by a factor of safety of two and one-half (2.5)
3.6 Summary and Conclusions
The maximum design load rating required for guardrail systems for use in IRC - One- and
Two-Family Dwellings and for rail lengths up to and including 8 ft for use in IBC - All Use Groups
is 200 lb. Therefore, fasteners / connectors reported herein meet the performance requirements
of ICC-ES
™
AC273 for use in corner conditions.