Bar Grating Load Charts

Load and Deflections Tables

All measurements are center to center of bearing bars.

STEEL BAR
Welded & Press Locked 19-W-4 (1-3/16")
15-W-2 (15/16")
Welded Close-Mesh & Press Locked
Close-Mesh 
13-W-4 (13/16")
11-W-4 (11/16")
10-W-4 (5/8")
8-W-4 (1/2")
Press-Locked Close-Mesh  7-P-4 (7/16")
Stainless Welded & Stainless Press-Locked  19-S-4 (1-3/16")
19-SP-4 (1-3/16")
Railroad Grating (AAR Approved)  25-W-4 (1-9/16")
27-W-4 (1-11/16") 
HEAVY DUTY STEEL
Heavy Duty Welded 15-H-4 (15/16")
19-H-4 (1-3/16") 
22-H-4 (1-3/8")
30-H-4 (1-7/8")
38-H-4 (2-3/8")
 ALUMINUM GRATING
I-Bar Swage Locked 19-SI-4 (1-3/16")
15-SI-4 (15/16")
11-SI-4 (11/16") 
I-Bar Swage Locked Close-Mesh 8-SI-4 (1/2")
Rectangular Bar Swage-Locked & Press Locked 19-SR-4
19-AP-4
(1-3/16")
  15-SR-4
15-AP-4
(15/16") 
Press-Locked Close Mesh 13-AP-4 (13/16")
Rectangular Bar Swage-Locked Close Mesh &
Press-Locked Close Mesh
11-SR-4
11-AP-4
(11/16")
10-AP-4 (5/8")
8-SR-4
8-AP-4
(1/2") 
7-AP-4 (7/16")
Duo Grip™ Extruded Table of Safe Spans
RIVETED GRATING
Steel Riveted Grating 18-R-7 (1-1/8")
12-R-7 (3/4")
Aluminum Riveted Grating 18-AR-7 (1-1/8")
12-AR-7 (3/4")
RIV-DEXTEEL® BRIDGE DECK GRATING
Basics for Design  Load Distribution per AASHTO

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