Cast Abrasive Nosings & Treads
BarryCraft Construction Casting Company's abrasive stair nosings and treads are designed for areas which are subjected to heavy foot traffic such as schools, public buildings, subways and shopping malls. BarryCraft Construction Casting Company's stair nosings and treads are attractively designed, non-corrosive, economically installed and will last virtually the life of the building.
Cast Abrasive Nosings & Treads:
Short form specifications
Nosings / treads will be BarryCraft Alumatread or Feratread style as manufactured by Barry Pattern & Foundry Co, Birmingham, AL. Surface will have silicon carbide abrasive, a minimum of 2-1/4ounces per square foot to a minimum of 1/32 of an inch.
All castings will be of uniform quality, free from blow holes, shrinkage defects, swells, cracks, or other defects. Treads will be true to pattern. Casting material will be of high quality iron or aluminum. Castings will be free of fins, burrs and slag. Cast iron will have one coat of black paint, aluminum will have a natural sand cast finish.
Widths available: 3" and 4" are standard. Other widths available from 2" to 12".
Standard surface: Cross-hatched abrasive.
Other surfaces available: Plain or fluted abrasive - must be specified.
Standard anchor for fresh concrete: Wing anchor.
Available anchor: Cast on bolt - must be specified.
Standard anchor for set concrete: Expansion shield or 1/4" Tapcon anchor.
|Table A: Thickness by width for nosings and treads|
|In Inches||Abrasive Cast Iron||Abrasive Cast Aluminum|
|3/8"||Up to 6"||Up to 6"|
|7/16"||Over 6" to 10"||Over 6" to 10"|
|1/2"||Over 10" to 24"||Over 10" to 44"|
Safety Nosing and Threshold Information for Engineers, Architects, Fabricators & Contractors
|Characteristics||Cast Iron||Cast Aluminum|
|Safety||Cast iron surface and nose with abrasive and cross hatched surface.||Cast aluminum and nose with abrasive and cross hatched surface.|
Lifetime - Outside
|Very Good - Outside
Very Good - Inside
|Cost (Initial)||Economical||Medium Economy|
|Color and Finish||Natural or with black asphaltic coating with abrasive grit showing on the surface.||Muted aluminum brightness with attractive abrasive grit showing on the surface.|
|Design||Patterns are inexpensively made for any design - curves and mitres available.||Patterns are inexpensively made for any design - curves and mitres available.|
|Sizes||Width 1" variable to 24"
Length to 5'6"
|Width 1" variable to 44"
Length to 5'6"
|Related Trade Names||Ferrogrit
Abrasive Filled Ribs
Continuous Epoxy Surface
|Safety||Epoxy and abrasive surface with plain aluminum ribs.||Epoxy and abrasive fill with plain, no design, smooth surface.|
|Durability||Poor - Outside
Good - Inside
|Fair - Outside
Good - Inside
|Cost (Initial)||Medium Economical||Medium to Very Expensive|
|Color and Finish||Filled with black abrasives with extruded ribs and nose showing. Colors available.||Normal smooth black epoxy abrasive surface. Other colors are available.|
|Design||Extrusions are costly to modify - can curve and mitre.||Extrusions are costly to modify - can curve and mitre.|
|Sizes||Width - Specified Standard widths only.
Length to 10'.
|Width - Specified Standard widths only.
Length to 10'.
Screws - Bolts
Quick Set Riveted
|Related Trade Names||Super Grit
|Anchoring - 3" From Ends - Approximately 12" Centers Standard|
(Click to enlarge)
|Style B-1 with wing
anchor set into poured in
|Style B-5 bolted to end
angles and riser plates.
May also have cast on end
pieced for bolting through
|Style B-16A For wide
coverage with beveled
back. Mounted on existing
concrete with adhesive
and expansion shields.
|Style B-31A with full-length
set in poured in place
|Style B-1SP with bolt type
cast on anchor set into
steel pan stairs.
|Nosings for poured-in-place stairs*|
|Style B-1 Nose 1/4" lip. Most popular
|Style B-16 Standard nose depth 1". Nose may be furnished up to 2" depth.|
|*Installed up to 3" from end of steps and even with front of riser line.|
|Nosings for concrete-filled steel pans
Installed full width of stair less 1/8 " from each end.
|Style B-1SP nose 3/8" lip. May also be superimposed
on existing steps.
|Style B-2 nose 1/2" x 3/8 ". Used as a nosing. May also be used structurally. Specify if structural.|
|Style B-3 nose 3/4"x 3/4". Used as a nosing. May also be used structurally. Specify if structural.|
|Style B-16A standard nose depth 1". Nose may be
furnished up to 2" depth, but must be specified. Style
B-16A may be used as a wide coverage repair tread
with a beveled back.
|Treads for other uses|
|Style B-100 square edges. For use as floor landing
plate or expansion joint cover.
|Style B-110 is used the same as style B-100 but has
two rounded edges.
|Style B-120 is frequently used as a grating nosing.
May also be used on a steel pan as a barrier free
nosing. One edge rounded.
||Curb bar is used primarily as heavy-duty curb protector, but can also be used as a stair nosing. Maximum length is 5'6" long. Cast on anchor is standard.|