The fields with the red border are required.

Welded                                                             AMICO Bar Grating Selection Tool                                                                            Press-locked   
    This grating selection tool is designed to handle the most common load configurations shown in the diagrams below. For other load configurations, please contact AMICO for assistance.             
Input   Grating Options**         How to Request a Quote and
 Specify Grating 
Enter design parameters in the yellow fields below.   Styles Bearing bar size (in) Bearing bar spacing (in) Approx. weight (psf) Section modulus* (in3) Moment of inertia* (in4) Select grating     (After grating options are shown)  
Step 1: Select ONE available box on the left.
Allowable stress   psi
Step 2: Choose desired surface finish
Cross rod/bar spacing
Grating surface
ADA-compliance req'd?
Americans with Disabilities Act (ADA) requires that
the clear space between bearing bars shall not be
greater than 1/2in.
Step 3: Email us the Specs below for a quote.
Clear span, L=   in 
Uniform load, U=
Commonly 100psf, or per project spec.
Concentrated load, C*=
Commonly 300 lbf, or per project spec.
Allowable deflection, D=
Commonly 0.25in, or per project spec.
        Step 4: (Specifiers/designers) Use our specifications tools . . .  HERE.
                          Contact AMICO  
      *    Per foot of grating width.           800-366-2642  
      ** All grating options shown on this list meet ANSI/NAAMM MBG 531 strength and deflection requirements.   E-mail  
        ©  2014 Alabama Metal Industries Corp. All rights reserved.            
AMICO Bar Grating Design Calculators
Q1: What are the most commonly used loads for pedestrian traffic?
A1: Uniform load U=100psf. Concentrated line load C=300 lbs per foot of grating. Allowable deflection D= 0.25in.
Q2: In the regular-duty and Aluminum grating calculators, why do I not see vehicular loads?
A2: These types of grating are not recommended for vehicular loads. Please try our Heavy-Duty Bar Grating or RivDexteel® Bridge Deck Grating.
Q3: In my project's design specs, there is a (non-vehicular) concentrated load, the footprint of which is not defined. Should I assume it to be the concentrated mid-span line load on 1ft of grating width as shown in your diagram?
A3: No. This often represents a heavy piece of equipment, which is a very different load pattern than the concentrated line load "C" shown in our diagram. Please contact AMICO for assistance. 
Q4: Why does the Serrated option give me deeper bars, but the section properties such as section modulus and modulus of elasticity don't change?
A4:  NAAMM 531 requires that when serration is present the top 1/4 depth of the bearing bars be discounted from the calculation of section properties.
  Contact AMICO
  © 2013 Alabama Metal Industries Corp. All rights reserved.