Steel Stair Model 03AA/04AA
Our steel stair models 03AA / 04AA are designed for
your commercial metal stair needs, primary egress needs and IBC industrial stair
needs. (IBC industrial stairs which require an interior handrail and
partially closed risers.)
Check this table
to be sure that this is the right stair for your application.
Model 03AA and 04AA:
- Stringers constructed from 12" channel.
- Variety of tread surface options and tread widths.
- Guardrails, handrails, and balusters are constructed of 1-1/2 O.D. tubing. Guardrail
height fixed at 42" and handrail height adjustable within the range allowed by your
code.
- Variety of finishes to match your facility and meet your environmental needs.
Advantages of Lapeyre Stair’s Metal Stairs
- You'll save money.
Since we handle design as well as fabrication, you'll dramatically reduce stair
production costs.
- You'll save time.
Our streamlined process allows a standard lead time of 3 weeks for most products.
- No hassle.
Why design a stair from scratch when we can do it for you - quickly and cost-effectively?
Stair Design Details
Table 1: 03AA/04AA Stair Design Details
|
Material |
Carbon Steel |
|
Stair Finishes |
- Safety Yellow Powder Coat
- Iron Gray Powder Coat
- Gray Primer Powder Coat
- Hot Dip Galvanized
- Choice of 180 colors Powder coat
|
|
Stair Type/Applications |
- Commercial Egress Stairway
- Accessible Commercial Egress Stairway
- Commercial Residential Egress Stairway
- Industrial Secondary Access
|
Dimensions
Table 2: 03AA/04AA Stair Dimensions
|
Configuration |
Minimum* |
Maximum |
|
Stair Height |
18"
|
144"
|
|
Stair Angle(up to 10'3) |
see charts below
|
|
Riser Height |
5"
|
7"
|
|
Projected Tread Depth (Tread Run) |
10"
|
11.5"
|
|
Top landing Depth |
4"
|
|
Top Reveal |
1"
|
1.5"
|
|
Front Reveal |
.25"
|
1.5"
|
|
Guardrail Height |
42"
|
|
Handrail Height |
30"
|
38"
|
|
Baluster Spacing |
3.75"
|
21"
|
|
Tread Width (Inside Stair Width) |
36"
|
60"
|
Available Stair Angle/ Height Charts
The minimum/maximum height and angle restrictions for our closed riser stairs is
not quite a simple as a set maximum. The range varies based on the stair width,
and the type of tread. The two charts below provide that information. You may also
contact our customer service department with your requested height and width and
we will be able to provide you with the information you need.
To read the table, the heights and angles are available for all heights (in feet)
below and to the right of the colored line that represents each tread width. For
example, a 36" wide tread is available up to 12' high at approximately the 25 degree
angle and steeper, but not at a 21 degree angle, which has a height limitation of
just over 10' high. For specific heights/angles, please consult your customer service
representative.
Model 03AA/04AA
Steel Tread Stair Heights (ft.)
Model 03AA/04AA
Concrete Pan Stair Heights (ft.)
Tread Options
The diamond plate tread provides a solid tread surface with raised diamonds for
a non-skid surface. We manufacture these treads in our facility and are able to
accomodate custom width requests.
Table 3: Diamond Treadplate Tread Details
|
Material |
Carbon Steel
|
|
Stair Finishes |
Choice of 5 Finishes
|
|
Widths |
36” *, 44”, 48”, and Custom Widths |
|
Widths based on Height |
See Chart
|
If your application requires concrete treads, you may select concrete pan treads
manufactured here in our facility. We use the underside of diamond treadplate to
create the pan, with the diamond plate wrapped around the front edge to create a
diamond treadplate nosing. The pan treads are available in the same widths as our
other treads, or you may choose a custom width. The pans are provided ready to install
and ready for your site poured concrete..
Table 5: Concrete Pan Details
|
Material |
Carbon Steel
|
|
Stair Finishes |
Choice of 5 Finishes
|
|
Widths |
24”, 30”, 36”, 48”, and Custom Widths |
|
Depths |
9-3/4”, 10-15/16”, and 12-1/8”
|
|
Sample Prints |
View Pdf
|
|
Widths based on Height |
See Chart
|
The smooth plate tread is identical to the Diamond tread, except that it does not
have the raised diamonds. This surface should not be used alone and is designed
to allow you to adhere your own surface material directly to the stair (carpeting,
non-slip flooring surface, or other flooring material). We manufacture these treads
in our facility and are able to accommodate custom width requests.
Table 3: Smooth Treadplate Tread Details
|
Material |
Carbon Steel
|
|
Stair Finishes |
Choice of 5 Finishes
|
|
Widths |
36” *, 44”, 48”, and Custom Widths |
|
Widths based on Height |
See Chart
|
Rail Options
Our stairs come with both guardrails and handrails designed within the parameters
of the building codes and field conditions you need to meet. The guard rails are
42" and the handrails are between 30" and 38" depending on your code and preference.
You may opt to have guard rails on both sides, or if you are mounting the stair
against a wall, opt to have no guardrail. The top edge of the stringer is narrower
if you do not have a guardrail. If you choose no guardrail, you can select a handrail
that will attach to the wall using wall mount brackets. Or you may leave off the
rails and provide your own wall mounted rails if you wish.
Stairs that must comply with ADA guidelines will have an extension.
The Industrial IBC stair is the only industrial stair that requires the inside handrail
in addition to a guardrail. For this reason, we use suggest Model 03AA or Model
04AA when you must comply with IBC for industrial access stairs.
The balusters of the guardrail connect through the stringer of the stair, and bolt
in place using provided spacers and bolts.
Handrail End Terminations
- Top and bottom extensions on rail meet ADA requirements as outlined in ADA 4.9.4(2).
- Handrail connects to the guard rail or the wall.
- Baluster ends press punched.
- Rails capable of withstanding a 200 pound load applied in any direction.
- Rail and balusters constructed from 1-1/2" OD tube.
- Balusters attach to stringers using provided bolts and spacers.
|
Top Handrail
Bottom Handrail
View sample prints
|
- Baluster ends press punched.
- Rail end caps molded from low density polyethylene. Optional Steel cap available
- Rails capable of withstanding a 200 pound load applied in any direction.
- Rail and balusters constructed from 1-1/2" OD tube.
- Balusters attach to stringers using provided bolts and spacers.
- Meets IBC code requirements, but not ADA. Can not be used for an accessible stair.
|
Top Handrail
Bottom Handrail
View sample prints
|
- Top and bottom extensions on rail meet ADA requirements as outlined in ADA 4.9.4(2)
for accessible stairs.
- Handrail mounts directly to your wall with wall brackets that we provide. Our system
calculates the default number of brackets to meet code requirements, but we can
include additional brackets at your request. Please let your customer service know
if you need additional brackets at the time of quoting.
- 1½" clearance between handrail and wall.
|
Top Handrail
Bottom Handrail
View sample prints
|
- Meets IBC code requirements, but not ADA. Can not be used for an accessible stair.
- Handrail mounts directly to your wall with wall brackets that we provide. Our system
calculates the default number of brackets to meet code requirements, but we can
include additional brackets at your request. Please let your customer service know
if you need additional brackets at the time of quoting.
- 1½" clearance between handrail and wall.
|
Top Handrail
Bottom Handrail
View sample prints
|
- Your customer service representative will automatically assume that you want guardrails
on both sides of the stair
- If your stair is against a wall, you can choose to eliminate the guard rail. Stairs
without guardrails have a narrower stringer so that it is not possible for users,
especially children, to slide down the edge of the stringer.
- Guardrails extend 42" above the nosing of the tread and end at the top and bottom
of the stair.
- Commercial stairs have balusters that are spaced so that a 4" sphere can not pass
between two balusters.
- Stairs ordered under the IBC Industrial Code have balusters spaced so that a 21"
sphere can not pass between two balusters.
- Guardrails are also available with a Filler Panel option.
|
|
- Your customer service representative will automatically assume that you want guardrails
on both sides of the stair
- If your stair is against a wall, you can choose to eliminate the guard rail. Stairs
without guardrails have a narrower stringer so that it is not possible for users,
especially children, to slide down the edge of the stringer.
- Guardrails extend 42" above the nosing of the tread and end at the top and bottom
of the stair.
- Filler panels are painted with the finish you desire, either the same as your stair
or a different color.
- Please Guardrails are available with full balusters.
|
|
*Building Codes
Both Stair Models 03AA and 04AA are designed around the following building codes.
- IBC / International Building Code
- ADA / American Disabilities Act
*Check back frequently for updates and new code additions
Assembly Options
- Unassembled...we recommend unassembled. The stair is very simple to assemble
and install. This is the most economical option, saving both on shipping and on
the stair purchase price. All assembly hardware is provided.
- Fully Assembled ...the stair comes fully assembled and ready to install.
This ships at a higher freight class with the freight carriers and is therefore
much more expensive to ship.
- Tread/Stringer Assembly ...we will attach the treads to the stringers for
you and ship the rails ready to install. You simply add the rails into the stringers
and bolt them in place before installing the stair. All assembly hardware is provided.
- Rail/Stringer Assembly...we will attach the balusters and stair rail to the
stringers for you and ship the treads separately. You add the treads to the stringer
before installing. All assembly hardware is provided.