FS Industries ENGINEERED STEEL PRODUCTS
Priced Full Line Products Catalog
PO Box 72659 Providence, RI 02907
Toll free:(800) 421-0314 • In RI:(401) 421-0314 • Fax:(401) 421-5679
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BOCA PREFAB
STAIRWAYS
*BOCA TYPE STRUCTURAL
STEEL STAIRWAYS
Quality engineered to your specific height requirements.
Norminal 32 degree angle (7/11-rise/run)
Designed for safety and convenience.
Extra heavy duty bar grating or diamond plate stair treads
   won’t sag or dish (supplied as standard).
Factory welded handrails of 1 1/2" x 14 Ga. square tubing.
10" structural channel stringers.
Fire proof construction.
Meets BOCA requirements. Meets OSHA requirements. See
   OSHA standard 1910.24 (Fixed Industrial Stairs) listed below
   price table.
Standard finish gray or blue enamel (Chart I), galvanized
    (Chart II), or duplex galvanized and painted (Chart III).
Standard 36" or 48" wide treads, 40" overall stair width. Other
   widths available upon request.
Tread depths are 11" deep for diamond plate and bar grating
    treads.
*BOCA is an abbreviating for Building Officials and Code Administrators which is no longer in existence. The basic
design of the stairway shown here is still popular as an OSHA approved fixed industrial stair which has a more
comfortable (7/11-rise/run) 32 degree angle as opposed to the more conventional 45 degree OSHA stair. Because
of its more gradual rate of rise, the BOCA stair does require more horizontal floor space.
Shipped as 2 side frames
and 1 bundle of treads for
bolted assembly
CUSTOM SIZES - SAME DAY QUOTES
Custom sizes and configurations are readily available. We provide same day price quotes if you require a special
stair angle, specific tread rise/run, or a maximum horizontal stair run to satisfy available floor space constriants.

Special all galvanized BOCA stair with wire mesh fill panels

NEW! Optional Finishes!
Our standard finish is a quick dry enamel in a variety of colors.
Now we are pleased to offer our products with a
hot-dipped galvanized finish or in a
duplex system which is paint over a hot-dipped galvanized undercoat.

Order all galvanized frame and tread finish for
maximum durability and corrosion resistance.
*Important Note when ordering: Specify actual floor to floor
height when ordering, stairways are custom designed to meet
your height requirements. *Other sizes available upon
request.

CHART I
PRICING FOR BOCA STAIRS WITH STANDARD PAINTED ENAMEL FRAME
Back to Top
Steel Stair Treads
Bar grating stair treads are safe, self-
cleaning, skid-resistant and economical.
FRAME FINISH-BLUE OR GRAY
TREAD SELECTION
BOCA
TYP.
MODEL
NO.
PRICING
HEIGHT
RANGE
(Floor to Floor)
HORIZONTAL
RUN
TREAD
WIDTH
OVERALL
WIDTH

(A)
BLK BAR
GRATING 10
15/16" TREAD
OPEN RISER

(B)
GAL. BAR
GRATING 10
15/16" TREAD
OPEN RISER
(C)
DIA. PLATE
11" TREAD
OPEN
RISER
(D)
DIA PLATE
12" TREAD
CLOSED
RISER
B3638-P 3'-0"-3'-5" 5'-10"-6'0" 36 39 $1,220 $1,254 $1,414 $1,489
B4838-P  3'-0"-3'-5"  5'-10"-6'0" 48 51 $1,351 $1,398 $1,611 $1,711
                 
B3644-P 3'-6"-3'-11" 5'-10"-6'-10" 36 39 $1,371 $1,415 $1,605 $1,695
B4844-P 3'-6"-3'-11"   5'-10"-6'-10" 48 51 $1,530 $1,586 $1,841 $1,962
                 
B3650-P 4'-0"-4'-5" 6'-9"-7'-9" 36 39 $1,524 $1,574 $1,796 $1,901
B4850-P 4'-0"-4'-5"   6'-9"-7'-9" 48 51 $1,707 $1,776 $2,072 $2,212
                 
B3656-P 4'-6"-4'-11" 7'-9"-8'-8" 36 39 $1,676 $1,733 $1,989 $2,108
B4856-P  4'-6"-4'-11" 7'-9"-8'-8"  48 51 $1,888 $1,963 $2,302 $2,464
                 
B3662-P 5'-0"-5'-5" 8'-8"-9'-7" 36 39 $1,830 $1,894 $2,178 $2,316
B4862-P  5'-0"-5'-5" 8'-8"-9'-7"  48 51 $2,065 $2,151 $2,534 $2,714
                 
B3668-P 5'-6"-5'-11" 9'-7"-10'-6" 36 39 $1,982 $2,053 $2,371 $2,521
B4868-P  5'-6"-5'-11"  9'-7"-10'-6" 48 51 $2,244 $2,340 $2,762 $2,964
                 
B3674-P 6'-0"-6'-5" 10'-5"-10'-6" 36 39 $2,055 $2,127 $2,445 $2,594
B4874-P 6'-0"-6'-5"   10'-5"-10'-6" 48 51 $2,318 $2,414 $2,836 $3,038
                 
B3680-P 6'-6"-6'-11" 11'-4"-11'-5" 36 39 $2,207 $2,286 $2,636 $2,803
B4880-P  6'-6"-6'-11" 11'-4"-11'-5"  48 51 $2,497 $2,602 $3,068 $3,288
                 
B3686-P 7'-0"-7'-5" 11'-4"-12'-3" 36 39 $2,360 $2,446 $2,827 $3,009
B4886-P 7'-0"-7'-5"   11'-4"-12'-3" 48 51 $2,676 $2,789 $3,298 $3,539
                 
B3690-P 7'-6"-7'-11" 12'-3"-13'-2" 36 39 $2,512 $2,605 $3,018 $3,214
B4890-P 7'-6"-7'-11"  12'-3"-13'-2"  48 51 $2,854 $2,979 $3,520 $3,790
                 
B3698-P 8'-0"-8'-5" 13'-2"-14'-2" 36 39 $2,665 $2,765 $3,210 $3,420
B4898-P 8'-0"-8'-5"   13'-2"-14'-2" 48 51 $3,034 $3,166 $3,759 $4,041
                 
B36104-P 8'-6"-8'-11" 14'-1"-15'-1" 36 39 $2,817 $2,925 $3,400 $3,627
B48104-P  8'-6"-8'-11" 14'-1"-15'-1"  48 51 $3,212 $3,354 $3,991 $4,291
                 
B36110-P 9'-0"-9'-5" 15'-0"-15'-11" 36 39 $2,970 $3,084 $3,592 $3,833
B48110-P 9'-0"-9'-5"   15'-0"-15'-11" 48 51 $3,391 $3,544 $4,221 $4,541
                 
B36116-P 9'-6"-9'-11" 15'-10"-15'-11" 36 39 $3,044 $3,158 $3,666 $3,907
B48116-P  9'-6"-9'-11" 15'-10"-15'-11"  48 51 $3,465 $3,615 $4,295 $4,615
                 
B36122-P 10'-0"-10'-5" 16'-9"-16'-10" 36 39 $3,196 $3,317 $3,858 $4,113
B48122-P  10'-0"-10'-5"  16'-9"-16'-10" 48 51 $3,642 $3,805 $4,525 $4,865
                 
B36128-P 10'-6"-10'-11" 16'-9"-17'-8" 36 39 $3,349 $3,478 $4,049 $4,319
B48128-P 10'-6"-10'-11"  16'-9"-17'-8"  48 51 $3,823 $3,993 $4,756 $5,118
                 
B36134-P 11'-0"-11'-5" 17'-8"-18'-7" 36 39 $3,500 $3,637 $4,240 $4,526
B48134-P  11'-0"-11'-5" 17'-8"-18'-7"  48 51 $3,999 $4,182 $4,985 $5,369
                 
B36140-P 11'-6"-12'-0" 18'-7"-19'-7" 36 39 $3,654 $3,796 $4,432 $4,732
B48140-P 11'-6"-12'-0"  18'-7"-19'-7"  48 51 $4,179 $4,372 $5,217 $5,619

CHART II
PRICING FOR BOCA STAIRS WITH GALVANIZED FRAME
Back to Top
Steel Stair Treads
Bar grating stair treads are safe, self-
cleaning, skid-resistant and economical.
Shown Painted
Shown Painted
FRAME FINISH-GALVANIZED
TREAD SELECTION
BOCA
TYP.
MODEL
NO.
PRICING
HEIGHT
RANGE
(Floor to Floor)
HORIZONTAL
RUN
TREAD
WIDTH
OVERALL
WIDTH
(B)
GAL. BAR
GRATING
10 15/16" TREAD
OPEN RISER
(C)
GAL. DIA.
PLATE
11" TREAD
OPEN RISER
(D)
GAL. DIA.
PLATE
12" TREAD
CLOSED RISER
B3638-G 3'-0"-3'-5" 5'-10"-6'0" 36 39 $1,843 $2,244 $2,347
B4838-G  3'-0"-3'-5" 5'-10"-6'0"  48 51 $1,987 $2,521 $2,659
               
B3644-G 3'-6"-3'-11" 5'-10"-6'-10" 36 39 $2,032 $2,513 $2,637
B4844-G  3'-6"-3'-11" 5'-10"-6'-10"  48 51 $2,204 $2,846 $3,011
               
B3650-G 4'-0"-4'-5" 6'-9"-7'-9" 36 39 $2,221 $2,784 $2,928
B4850-G 4'-0"-4'-5"  6'-9"-7'-9"  48 51 $2,423 $3,170 $3,364
               
B3656-G 4'-6"-4'-11" 7'-9"-8'-8" 36 39 $2,411 $3,053 $3,217
B4856-G 4'-6"-4'-11"  7'-9"-8'-8"  48 51 $2,640 $3,497 $3,716
               
B3662-G 5'-0"-5'-5" 8'-8"-9'-7" 36 39 $2,601 $3,322 $3,508
B4862-G  5'-0"-5'-5" 8'-8"-9'-7"  48 51 $2,859 $3,800 $4,067
               
B3668-G 5'-6"-5'-11" 9'-7"-10'-6" 36 39 $2,789 $3,591 $3,798
B4868-G 5'-6"-5'-11"  9'-7"-10'-6"  48 51 $3,076 $4,145 $4,420
               
B3674-G 6'-0"-6'-5" 10'-5"-10'-6" 36 39 $2,893 $3,695 $3,901
B4874-G 6'-0"-6'-5"  10'-5"-10'-6"  48 51 $3,179 $4,249 $4,525
               
B3680-G 6'-6"-6'-11" 11'-4"-11'-5" 36 39 $3,083 $3,964 $4,191
B4880-G 6'-6"-6'-11"  11'-4"-11'-5"  48 51 $3,397 $4,573 $4,877
               
B3686-G 7'-0"-7'-5" 11'-4"-12'-3" 36 39 $3,271 $4,233 $4,482
B4886-G 7'-0"-7'-5"  11'-4"-12'-3"  48 51 $3,615 $4,899 $5,230
               
B3690-G 7'-6"-7'-11" 12'-3"-13'-2" 36 39 $3,461 $4,502 $4,771
B4890-G 7'-6"-7'-11"  12'-3"-13'-2"  48 51 $3,833 $5,223 $5,581
               
B3698-G 8'-0"-8'-5" 13'-2"-14'-2" 36 39 $3,649 $4,772 $5,062
B4898-G 8'-0"-8'-5"  13'-2"-14'-2"  48 51 $4,053 $5,547 $5,934
               
B36104-G 8'-6"-8'-11" 14'-1"-15'-1" 36 39 $3,840 $5,043 $5,351
B48104-G 8'-6"-8'-11"  14'-1"-15'-1  48 51 $4,269 $5,873 $6,286
               
B36110-G 9'-0"-9'-5" 15'-0"-15'-11" 36 39 $4,028 $5,312 $5,642
B48110-G 9'-0"-9'-5"  15'-0"-15'-11"  48 51 $4,487 $6,197 $6,639
               
B36116-G 9'-6"-9'-11" 15'-10"-15'-11" 36 39 $4,131 $5,416 $5,744
B48116-G 9'-6"-9'-11"   15'-10"-15'-11" 48 51 $4,591 $6,302 $6,742
               
B36122-G 10'-0"-10'-5" 16'-9"-16'-10" 36 39 $4,322 $5,685 $6,036
B48122-G 10'-0"-10'-5"  16'-9"-16'-10"  48 51 $4,807 $6,627 $7,093
               
B36128-G 10'-6"-10'-11" 16'-9"-17'-8" 36 39 $4,510 $5,954 $6,325
B48128-G  10'-6"-10'-11" 16'-9"-17'-8"  48 51 $5,027 $6,951 $7,446
               
B36134-G 11'-0"-11'-5" 17'-8"-18'-7" 36 39 $4,698 $6,223 $6,614
B48134-G 11'-0"-11'-5"  17'-8"-18'-7"  48 51 $5,243 $7,276 $7,799
               
B36140-G 11'-6"-12'-0" 18'-7"-19'-7" 36 39 $4,888 $6,492 $6,905
B48140-G  11'-6"-12'-0" 18'-7"-19'-7"  48 51 $5,463 $7,601 $8,151

CHART III
PRICING FOR BOCA STAIRS WITH DUPLEX COLORZINQ FRAME
Steel Stair Treads
Bar grating stair treads are safe, self-
cleaning, skid-resistant and economical.
Shown Painted
FRAME FINISH-GALVANIZED & PAINTED
TREAD SELECTION
BOCA
TYP.
MODEL NO.
PRICING
HEIGHT
RANGE
(Floor to Floor)
HORIZONTAL
RUN
TREAD
WIDTH
OVERALL
WIDTH
(A)
COLOR ZINQ
BAR GRATING
10 15/16" TREAD
OPEN RISER
(C)
COLOR ZINQ
DIA. PLATE
11" TREAD
OPEN RISER
(D)
COLOR ZINQ
DIA. PLATE
12" TREAD
CLOSED RISER
B3638-GP 3'-0"-3'-5" 5'-10"-6'0" 36 39 $2,328 $2,688 $2,819
B4838-GP  3'-0"-3'-5"  5'-10"-6'0" 48 51 $2,566 $3,048 $3,221
               
B3644-GP 3'-6"-3'-11" 5'-10"-6'-10" 36 39 $2,604 $3,037 $3,194
B4844-GP  3'-6"-3'-11"  5'-10"-6'-10" 48 51 $2,889 $3,466 $3,676
               
B3650-GP 4'-0"-4'-5" 6'-9"-7'-9" 36 39 $2,878 $3,385 $3,567
B4850-GP 4'-0"-4'-5"  6'-9"-7'-9"  48 51 $3,212 $3,886 $4,129
               
B3656-GP 4'-6"-4'-11" 7'-9"-8'-8" 36 39 $3,154 $3,732 $3,942
B4856-GP 4'-6"-4'-11"  7'-9"-8'-8"  48 51 $3,535 $4,304 $4,584
               
B3662-GP 5'-0"-5'-5" 8'-8"-9'-7" 36 39 $3,428 $4,078 $4,315
B4862-GP  5'-0"-5'-5" 8'-8"-9'-7"  48 51 $3,858 $4,723 $5,038
               
B3668-GP 5'-6"-5'-11" 9'-7"-10'-6" 36 39 $3,704 $4,427 $4,689
B4868-GP  5'-6"-5'-11" 9'-7"-10'-6"  48 51 $4,179 $5,143 $5,492
               
B3674-GP 6'-0"-6'-5" 10'-5"-10'-6" 36 39 $3,837 $4,560 $4,822
B4874-GP 6'-0"-6'-5"   10'-5"-10'-6" 48 51 $4,312 $5,276 $5,624
               
B3680-GP 6'-6"-6'-11" 11'-4"-11'-5" 36 39 $4,112 $4,907 $5,195
B4880-GP 6'-6"-6'-11"  11'-4"-11'-5"  48 51 $4,634 $5,694 $6,078
               
B3686-GP 7'-0"-7'-5" 11'-4"-12'-3" 36 39 $4,388 $5,254 $5,569
B4886-GP 7'-0"-7'-5"  11'-4"-12'-3"  48 51 $4,957 $6,114 $6,534
               
B3690-GP 7'-6"-7'-11" 12'-3"-13'-2" 36 39 $4,664 $5,603 $5,943
B4890-GP 7'-6"-7'-11"  12'-3"-13'-2"  48 51 $5,280 $6,534 $6,986
               
B3698-GP 8'-0"-8'-5" 13'-2"-14'-2" 36 39 $4,938 $5,951 $6,317
B4898-GP  8'-0"-8'-5" 13'-2"-14'-2"  48 51 $5,603 $6,952 $7,442
               
B36104-GP 8'-6"-8'-11" 14'-1"-15'-1" 36 39 $5,214 $6,297 $6,691
B48104-GP 8'-6"-8'-11"   14'-1"-15'-1" 48 51 $5,926 $7,371 $7,895
               
B36110-GP 9'-0"-9'-5" 15'-0"-15'-11" 36 39 $5,490 $6,645 $7,064
B48110-GP  9'-0"-9'-5" 15'-0"-15'-11"  48 51 $6,249 $7,790 $8,350
               
B36116-GP 9'-6"-9'-11" 15'-10"-15'-11" 36 39 $5,621 $6,779 $7,197
B48116-GP 9'-6"-9'-11"  15'-10"-15'-11"  48 51 $6,382 $7,924 $8,482
               
B36122-GP 10'-0"-10'-5" 16'-9"-16'-10" 36 39 $5,897 $7,124 $7,571
B48122-GP 10'-0"-10'-5"  16'-9"-16'-10"  48 51 $6,705 $8,342 $8,935
               
B36128-GP 10'-6"-10'-11" 16'-9"-17'-8" 36 39 $6,173 $7,473 $7,945
B48128-GP 10'-6"-10'-11"   16'-9"-17'-8" 48 51 $7,028 $8,761 $9,390
               
B36134-GP 11'-0"-11'-5" 17'-8"-18'-7" 36 39 $6,448 $7,821 $8,318
B48134-GP 11'-0"-11'-5"  17'-8"-18'-7"  48 51 $7,350 $9,180 $9,844
               
B36140-GP 11'-6"-12'-0" 18'-7"-19'-7" 36 39 $6,723 $8,169 $8,693
B48140-GP 11'-6"-12'-0"  18'-7"-19'-7"  48 51 $7,673 $9,600 $10,298

FACTORY LOAD TEST
In addition to theoretical
design analysis
FS Industries has
performed actual load
tests with a 25%
overload to insure
design conformance to
OSHA standard 1910.24
which is printed below
test photos.
1250 lbs. concentrated load applied
to the center span of stair tread on a
3" long x 1 1/2" flat bar bearing surface.
Underside view of 1250 lbs.
concentrated load suspended
from center of stair tread.
OSHA STANDARD 1910.24 FIXED INDUSTRIAL STAIRS
1910.24(a)

"Application of requirements." This section contains specifications for the safe design and construction of fixed general
industrial stairs. This classification includes interior and exterior stairs around machinery, tanks, and other equipment,
and stairs leading to or from floors, platforms, or pits. This section does not apply to stairs used for fire exit purposes,
to construction operations to private residences, or to articulated stairs, such as may be installed on floating roof tanks
or on dock facilities, the angle of which changes with the rise and fall of the base support.

..1910.24(b)

1910.24(b)

"Where fixed stairs are required." Fixed stairs shall be provided for access from one structure level to another where
operations necessitate regular travel between levels, and for access to operating platforms at any equipment which
requires attention routinely during operations. Fixed stairs shall also be provided where access to elevations is daily or
at each shift for such purposes as gauging, inspection, regular maintenance, etc., where such work may expose
employees to acids, caustics, gases, or other harmful substances, or for which purposes the carrying of tools or
equipment by hand is normally required. (It is not the intent of this section to preclude the use of fixed ladders for
access to elevated tanks, towers, and similar structures, overhead traveling cranes, etc., where the use of fixed ladders
is common practice.) Spiral stairways shall not be permitted except for special limited usage and secondary access
situations where it is not practical to provide a conventional stairway. Winding stairways may be installed on tanks and
similar round structures where the diameter of the structure is not less than five (5) feet.

1910.24(c)

"Stair strength." Fixed stairways shall be designed and constructed to carry a load of five times the normal live load
anticipated but never of less strength than to carry safely a moving concentrated load of 1,000 pounds.

1910.24(d)

"Stair width." Fixed stairways shall have a minimum width of 22 inches.

1910.24(e)

"Angle of stairway rise." Fixed stairs shall be installed at angles to the horizontal of between 30 deg. and 50 deg. Any
uniform combination of rise/tread dimensions may be used that will result in a stairway at an angle to the horizontal
within the permissible range. Table D-1 gives rise/tread dimensions which will produce a stairway within the permissible
range, stating the angle to the horizontal produced by each combination. However, the rise/tread combinations are not
limited to those given in Table D-1.

Table D-1
________________________________________________________
Angle to horizontal | Rise (in inches) | Tread run (in inches)    
__________________________   |____________________________
30 deg. 35'............|    6 1/2             |            11
32 deg. 08'............|    6 3/4             |            10 3/4
33 deg. 41'............|    7                   |            10 1/2
35 deg. 16'............|    7 1/4             |            10 1/4
36 deg. 52'............|    7 1/2             |            10
38 deg. 29'............|    7 3/4             |            9 3/4
40 deg. 08'............|    8                   |            9 1/2
41 deg. 44'............|    8 1/4             |            9 1/4
43 deg. 22'............|    8 1/2             |            9
45 deg. 00'............|    8 3/4             |            8 3/4
46 deg. 38'............|    9                   |            8 1/2
48 deg. 16'............|    9 1/4             |            8 1/4
49 deg. 54'............|    9 1/2             |            8
_______________________________________________________


..1910.24(f)

1910.24(f)

"Stair treads." All treads shall be reasonably slip-resistant and the nosings shall be of nonslip finish. Welded bar grating
treads without nosings are acceptable providing the leading edge can be readily identified by personnel descending the
stairway and provided the tread is serrated or is of definite nonslip design. Rise height and tread width shall be uniform
throughout any flight of stairs including any foundation structure used as one or more treads of the stairs.

1910.24(g)

"Stairway platforms." Stairway platforms shall be no less than the width of a stairway and a minimum of 30 inches in
length measured in the direction of travel.

1910.24(h)

"Railings and handrails." Standard railings shall be provided on the open sides of all exposed stairways and stair
platforms. Handrails shall be provided on at least one side of closed stairways preferably on the right side descending.
Stair railings and handrails shall be installed in accordance with the provisions of 1910.23.

1910.24(i)

"Vertical clearance." Vertical clearance above any stair tread to an overhead obstruction shall be at least 7 feet
measured from the leading edge of the tread.


[39 FR 23502, June 27, 1974, as amended at 43 FR 49744, Oct. 24, 1978; 49 FR 5321, Feb. 10, 1984]

--------------------------------------------------------------------------------

Next Standard (1910.25)


Regulations (Standards - 29 CFR) - Table of Contents


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