Steel Grating

Available in plain or serrated top. Standard finish is painted black, but galvanized and mill finish also available.

Bustin Steel 19W4 grating has a 4" CTC crossbar spacing and 1 3/16" CTC bearing bar spacing.

In addition, we offer another type of walking surface – one that requires mounting on the top of a flat surface (Bustin M4 Grating).

M4 grating walk surfaces are available in steel or stainless steel. Available only as 1/2" H x 1/8" T. Steel max length = 20' (up to 4' wide).  Stainless steel max length = 10' (up to 4' wide). Banding is also available.

Safety

Meets or exceeds OSHA and ANSI recommendations.

Self-Cleaning

With each footstep - ice, snow, mud and debris fall to the ground.

Maintenance

Maintenance free welded construction; no bolts to loosen or replace.

Slip Resistant

Most step slip resistance as verified by independent lab testing.

Weight Capacity

100lbs./sq. ft.

Call for recommended safe loads of additional sizes and spans.

SizeBar SizeRecommended
Maximum Span
 Span in Feet
2' 3' 4' 5' 6' 7' 8' 9'
2 3/4" x 3/16" 46" U 533 237 133          
D 0.099 0.223 0.397          
C 533 355 266          
D 0.079 0.179 0.318          
3 1" x 1/8" 51" U 632 281 158 101 70      
D 0.074 0.168 0.298 0.466 0.67      
C 632 421 316 253 211      
D 0.06 0.134 0.238 0.372 0.536      
4 1" x 3/16" 57" U 947 421 237 152 105      
D 0.074 0.168 0.298 0.466 0.67      
C 947 632 474 379 316      
D 0.06 0.134 0.238 0.372 0.536      
5 1-1/4" x 1/8" 61" U 987 439 247 158 110 81    
D 0.06 0.134 0.238 0.372 0.536 0.73    
C 987 658 493 395 329 282    
D 0.048 0.107 0.191 0.298 0.429 0.584    
6 1-1/4" x 3/16" 67" U 1480 658 370 237 164 121    
D 0.06 0.134 0.238 0.372 0.536 0.73    
C 1480 987 740 592 493 423    
D 0.048 0.107 0.191 0.298 0.429 0.584    
7 1-1/2" x 1/8" 70" U 1421 632 355 227 158 116 89 70
D 0.05 0.112 0.199 0.31 0.447 0.608 0.794 1.006
C 1421 947 711 568 474 406 355 316
D 0.04 0.089 0.159 0.248 0.358 0.487 0.636 0.804
8 1-1/2" x 3/16" 77" U 2132 947 533 341 237 174 133 105
D 0.05 0.112 0.199 0.31 0.447 0.608 0.794 1.006
C 2132 1421 1066 853 711 609 533 474
D 0.04 0.089 0.159 0.248 0.358 0.487 0.636 0.804

Theoretical values based on unit stress of 18,000 psi. 
U = uniform load, lbs per sq ft | D = Deflection in inches | C = Concentrated load, lbs per sq ft

When calling for a quote or to place an order, please have the following information available so we can process your order immediately:

  • Type of Grating
  • Type of Finish (mill, galvanized, primed)
  • Width
  • Length (Max length: 288")
  • Height and Thickness of bearing bar
  • Number of Pieces

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