Tread Grip
Marco’s Tread-Grip® Products for Industrial Applications provide non-slip gripping surfaces that exceed all Federal Specifications for slip resistance and our quality system is certified to the ISO 9002 specification.
Marco's perforated-button treads make the difference. Because of the way these treads are designed and produced, Tread-Grip® flooring retains a larger percent of its original non-slip characteristics over a longer period of time that other types of surfaces that rely on "outside" corners to provide friction.
Tread-Grip® Planks
Standard Sizes
- Pre-Galvanized or HRP&0 Steel
- 13 and 11 Gauge
- .125" 5052-H32 Aluminum
- Low Open Area - Debris and Tools Will not Fall Through
- Custom Sizes Available
- Channels also available in Button-Hole® Patterns
- Safe Load Tables available upon request
| Width | Channel Height |
13 Gauge Steel Wt./Ln.Ft. |
11 Gauge Steel Wt./Ln.Ft. |
Aluminum Wt./Ln.Ft. |
| 7" | 1-1/2" | 3.63 | 4.82 | - |
| 2" | 3.63 | 4.82 | 1.73 | |
| 10" | 1-1/2" | 4.57 | 6.09 | - |
| 2" | 4.57 | 6.09 | 2.17 | |
| 12" | 1-1/2" | 5.13 | 6.85 | - |
| 2" | 5.13 | 6.85 | 2.44 |
Marco's perforated-button treads make the difference. Because of the way these treads are designed and produced, Tread-Grip® flooring retain a larger percent of their original non-slip charactersistics over a longer period of time that other types of surfaces that rely on "outside" corners to provide friction.
Tread-Grip® Sheets
Stock Sizes:
- HRP&O Steel 11, 12, 13, 14 and 16 gauge
- .125" 5052-H32 aluminum
- 36" wide x 120" long
- Other finishes and sizes available on special order
- 304-2B Stainless - 16 Gauge in the Chevron or 1-1/4" Square Patterns Only
- Pre-Galvanized available on special inquiry.
| Material | lb./sq.ft |
| 16 Gauge HRP&O Steel | 2.4 |
| 14 Gauge HRP&O Steel | 3.0 |
| 13 Gauge HRP&O Steel | 3.6 |
| 12 Gauge HRP&O Steel | 4.2 |
| 11 Gauge HRP&O Steel | 4.8 |
| .125" Aluminum | 1.7 |
Button-Hole® Sheets
Stock Sizes:
- HRP&O Steel 11, 12, 13, 14 and 16 gauge
- .125" 5052-H32 aluminum
- 36" wide x 120" long
- Other finishes and sizes available on special order
- 304-2B stainless - 16 gauge in the chevron or 1-1/4" square patterns only
- Pre-Galvanized available on special inquiry
| Material | lb./sq.ft. |
| 16 Gauge HRP&O Steel | 2.3 |
| 14 Gauge HRP&O Steel | 2.9 |
| 13 Gauge HRP&O Steel | 3.5 |
| 12 Gauge HRP&O Steel | 4.1 |
| 11 Gauge HRP&O Steel | 4.7 |
| .125" Aluminum | 1.6 |
Tread-Grip® Ladder Rungs
Standard Ladder Rungs
- Stock Sizes: 16", 18", 48-3/4", 60" lengths
- Pre-Galvanized or HRP&O steel, 13 and 11 gauge
- .125" aluminum
- 16 gauge 304-2B stainless steel
- Safe allowable design loads shown are concentrated at center of span on simple beam.
4 Row Stock Ladder Rungs
| Material | Safe Allowable Concentrated Load (lb.) |
Weight lb./ln.ft |
|||
| 16" Span | 18" Span | 20" Span | 24" Span | ||
| 11 Gauge Steel | 1138 | 1012 | 911 | 759 | 1.947 |
| 13 Gauge Steel | 862 | 766 | 689 | 574 | 1.411 |
| .125 Aluminum | 810 | 720 | 649 | 540 | 0.723 |
| 16 Gauge Stainless Steel | 580 | 516 | 464 | 387 | 1.066 |
3 Row Stock Ladder Rungs
| Material | Safe Allowable Concentrated Load (lb.) | Weight lb./ln.ft |
|||
| 16" Span | 18" Span | 20" Span | 24" Span | ||
| 11 Gauge Steel | 474 | 422 | 379 | 316 | 1.214 |
| 13 Gauge Steel | 375 | 334 | 300 | 250 | 0.888 |
| .125 Aluminum | 337 | 299 | 269 | 224 | 0.451 |
| 16 Gauge Steel | 260 | 231 | 208 | * | 0.675 |
*Does not meet OSHA 1910.26/1910.27 (Minimum Concentrated Load 200 lb. Live Load) in applications of this span.
2 Row Stock Ladder Rungs
| Material | Safe Allowable Concentrated Load (lb.) | Weight lb./ln.ft |
|||
| 16" Span | 18" Span | 20" Span | 24" Span | ||
| 11 Gauge Steel | 664 | 590 | 531 | 443 | 1.214 |
| 13 Gauge Steel | 508 | 451 | 401 | 338 | 0.888 |
| .125 Aluminum | 471 | 418 | 377 | 314 | 0.451 |
| 16 Gauge Steel | 345 | 306 | 276 |
230 |
0.675 |
- These loads are based on simple beam calculation.
- The minimum safety factor = 1.67
- Maximum deflection does not exceed L/240
