* LONGEST WEARING
* IMPACT RESISTANT
* ANTI-SLIP SURFACE
* ECONOMICAL
American Safety Tread structural stair treads and platforms
are in use daily throughout the United States. The anti-slip
granules embedded in the walking surface create a positive
traction system that lasts for the life of the stairway.
RECOMMENDED THICKNESS FOR
STRUCTURAL TREADS
To To To
Span 3'0" 4'0" 5'0"
Thickness 7/16" 1/2" 5/8"
Thickness is for foundry casting purposes and may not be
adequate for structural strength.
Several designs are self-supporting, requiring no risers or
bracing. Other designs are installed with carrier angles and
risers. The choices are many.
When a heavy duty commuter stairway or industrial
stairway is the design project, structural castings by American
Safety Tread will provide the safety required by OSHA.
LONGEST WEARING: Effective anti-slip protection is
guaranteed for the life of the stairway.
IMPACT RESISTANT: The alloys used in the manufacture
of these cast structural treads and platforms create highly
impact-resistant treads to accommodate heavy interior and
exterior use.
ANTI-SLIP SURFACE: Whether wet or dry these treads
afford maximum protection against slipping hazards. The
proper blend of abrasive granules embedded in the exposed
walking surface assures secure traction under foot.
ECONOMICAL: Available in four metals, these cast structural
treads and platforms are the most economical on the market.
Our advanced manufacturing equipment and special
American Safety Tread molding process assure the lowest
cost per unit.
Choice of Metals
ALUMACAST Corrosion resistant, maintenance-free
aluminum alloy for exterior and interior use.
FERACAST Cast iron all purpose usage. Withstands
heavy industrial punishment.
BRONZACAST Rich bronze finish makes this an ideal
choice when fine architectural effects
must be achieved and maintained.
NICKELCAST A combination of cast nickel and bronze
designed to blend with stainlesss steel architecture.
| How to specify: Structural treads and platforms shall be style No._______ as manufactured by American Safety Tread Company. Treads shall be cast in Alumacast, Feracast, Bronzacast or Nickelcast with #24 virgin grain Silicon Carbide granules embedded into the walking surface while the matrix is in a molten state. Treads shall be furnished with front lip design matching the treads All metals shall be furnished in natural metal finish. Feracast shall have one coat of shop applied black paint. |
| RECOMMENDED THICKNESS FOR STRUCTURAL TREADS To To To Span 3'0" 4'0" 5'0" Thickness 7/16" 1/2" 5/8" Thickness is for foundry casting purposes and may not be adequate for structural strength. |
TYPICAL SPACING FOR HOLES IN END LUGS
AND DRILLING FOR CARRIER ANGLES

| Tread Width | Hole spacing from front &back | Hole spacingbetween holes |
| 4" | 1-3/8" | 1-1/4" |
5" | 1-1/2" | 2" |
| 6" | 1-1/2" | 3" |
| 7" | 1-3/4" | 3-1/2" |
| 8" | 2" | 4" |
| 9" | 2" | 5" |
| 10" | 2" | 6" |
| 11" | 2" | 7" |
| 12" | 2" | 8" |
Holes in end lugs for 1/2" diameter bolts.
Please consult factory for tread sizes available in these different styles.
Click here
for PDF on Structural Stair Treads
Click here
for PDF on Structural Stair Treads







