Metal Gratings and Floor Plates

Read revision 4

Revision 4 · Oct 12, 2026 +22 −5

Datasheet constraints: every range, checkbox and listbox field now states its direction
Showing changes from Rev 3 to Rev 4 in Metal Gratings and Floor Plates.
---
title: Metal Gratings and Floor Plates
…92 unchanged lines
- "Grating and floor plate samples"
- "FRP resin, surface, fire, and load data"
+constraint: all_of
```
…28 unchanged lines
- "Welding procedures and welder qualifications"
- "Fabricator qualification statement"
+constraint: all_of
```
…20 unchanged lines
- "Coating repair record"
- "Field verification record"
+constraint: all_of
```
…7 unchanged lines
```datasheet
−label: Minimum Fabricator Experience
+label: Fabricator Experience
type: range
unit: years
…2 unchanged lines
step: 1
default: 5
+constraint: min
```
…35 unchanged lines
drawing_ref: "the structural drawings and the platform live load schedule"
default: deferred
+constraint: min
```
…7 unchanged lines
drawing_ref: "the structural drawings and the platform live load schedule"
default: deferred
+constraint: min
```
…30 unchanged lines
```datasheet
−label: Maximum Deflection Under Design Uniform Load
+label: Deflection Under Design Uniform Load
type: range
unit: in
…2 unchanged lines
setpoints: [0.125, 0.25, 0.375, 0.5]
default: 0.25
+constraint: max
```
```datasheet
−label: Maximum Deflection as a Span Ratio, L/n
+label: Deflection as a Span Ratio, L/n
type: range
unit: "span ratio denominator n"
min: 240
max: 600
setpoints: [240, 360, 400, 480, 600]
+constraint: min
```
…108 unchanged lines
derived: "the design loads, the span on the framing plans, and the deflection limit, read from the ANSI/NAAMM MBG 531 or MBG 532 load table for the material and construction selected"
default: derived
+constraint: exact
```
…7 unchanged lines
derived: "the design loads, the span on the framing plans, and the deflection limit, read from the ANSI/NAAMM MBG 531 or MBG 532 load table for the material and construction selected"
default: derived
+constraint: exact
```
…13 unchanged lines
derived: "the opening-size limit that applies to the area served and the ANSI/NAAMM load table for the bearing bar selected"
default: derived
+constraint: exact
```
…12 unchanged lines
setpoints: [2, 4]
default: 4
+constraint: exact
```
…103 unchanged lines
```datasheet
−label: FRP Flame Spread Index, Maximum
+label: FRP Flame Spread Index
type: range
unit: "flame spread index"
…2 unchanged lines
setpoints: [25, 75, 200]
default: 25
+constraint: max
```
…86 unchanged lines
derived: "the design loads, the span on the framing plans, and the deflection limit, by the fabricator's engineering for the plate material selected"
default: derived
+constraint: exact
```
…135 unchanged lines
```datasheet
−label: Maximum Handling Weight of a Removable Panel
+label: Handling Weight of a Removable Panel
type: range
unit: lb
min: 30
max: 150
step: 5
+constraint: max
```
…91 unchanged lines
setpoints: [1, 2, 5]
default: 1
+constraint: min
```
…15 unchanged lines
max: 10
step: 1
+constraint: exact
```
## Clips are lost at every lift of a removable panel, and a panel re-set with two clips instead of four is the panel that lifts under a cart. A small stock of the clip actually used, in the plant and not on order, is what keeps lifted panels re-secured. {note}
## Spare clips and fasteners shall be identical to those installed, of the same material and finish, and shall be delivered in labeled containers that name the panel type they fit.

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