Technical Specifications

STAIR SPECIFICATION.
COMPONENTS. The EDECK
tm
stair system is comprised of the
following principal components, made from galvanized sheet steel
manufactured in compliance with ASTM A653/A653M-98 Z275
(G90), and minimum yield strength of 50ksi.
Stringers. Compatible stringer designs to be galvanized
cold formed steel stringers conforming to SSMA as follows;
(a) 600S162-054 for maximum 5 treads per ight at 72-inch
wide tread; (b) 800S162-054 for maximum 13 treads per
ight at 72-inch wide tread.
STAIR HANGAR CHANNEL. Galvanized cold-formed
steel c-channel in accordance with SSMA 600S162-054,
or equiv.
INFIELD STAIR PANEL (EDECK 725-S1100-054).
Integrated eld stair panels manufactured by Evolutiondeck
Inc. with 7.25 inch riser height and 11-inch treqd depth.
FINISH STAIR PANEL (EDECK-625S1100-054).
Integrated end stair panels manufactured by Evolutiondeck
Inc. with a 6.25 inch riser height.
SURFACE FINISHES. Suitable nishes are adhered to stair
panels using polyurethane glue (per ASTM D3498 and AFG01).
Finishes include pre-cast concrete pavers; natural stone pavers;
cast-in-place concrete; recycled rubber pavers, PVC decking etc.
SUBGRADE PREPARATION. For oating staire platform, provide
compacted aggregate footing base (per ASTM D 698) for pedestrian
areas.
COLUMNS AND FOUNDATIONS. Note Evolutiondeck Inc. makes
no representations or designs regarding the loading capacity of
the footing, as footing design is dependent on local soil bearing
conditions - check with local building o󰀩cials for minimum sizes.
Foundation pads or grade beams are placed on compacted
subgrade base optionally below the frost line as required by the
buildng code. Compatible foundations include: (1) 254 mm (10-
inch) diameter concrete columns on expanded footing forms
(e.g. Bigfoot); (2) helical pile foundation systems (installed per
manufacturer specications); and (3) 4”x 4”x 0.1875” HSS steel
column with adapters for securing to concrete footing pad and beam
attachment; or equiv.
ANODE CORROSION PROTECTION. While the EDECK
tm
system has a long service life, it is optional to provide a R3
disc-type zinc anode (per ASTM B-418-95 Type II, MIL-18001
or equiv.) for stair system bolted to joists at location(s) to
facilitate inspection every ve years.
MAXIMUM CLEAR SPANS. (a) Stair tread maximum clear
span between stringer supports = 48 inches; (b) stair tread
maximum cantilever = 12 inches.
MAXIMUM UNIFORM LOADS. The EDECK
tm
stair system
remains elastic and satises structural performance
requirements for uniform live load combinations or a 300
pound concentrated load acting over an area of 4 square
inches at the 48in clear span. Maximum paver or other
surface nish loading may not exceed 33 psf.
VARIATIONS FROM SPECIFICATION. Any item not specically
addressed herein shall comply with the applicable building code.
FASTENER CONNECTIONS. EDECK systems are assembled
using all-weather M12 x 1 self-drilling screws as described
in ESR – Report 1976 (Tek), ER-4780 (Dril-Flex), ER-5454
(Pro-twist), ER-5280 (Grabber) or equivalent. Connections of
stringer to hanger are further reinforced using 2 @ 1/4” diameter
galvanized or stainless steel bolts.
STAIR INSTALLATION.
1. At least one screw fastener will be located at all intersections
between the stair tread and strniger, EDECK stair panels, and the
hanger. Install the stringer onto the foundation columns or pad,
using suitable bracket and fasteners.
2. Install the hangers to the deck system using the supplied screw
fasteners. Reinforce with two (1) 1/4” diameter galvanized steel
bolts at each end of hanger.
3. Then install rst INFIELD EDECK ineld tread section, seating
the leading edge of the section on top of the previously installed
HANGER. Secure this joint using the approved screws not more
than 3.0 inches from either end and 6.0 inches between screws.
Secure the EDECK bottom ange onto the STRINGER using one
screws on each side. Continue adding and securing the INFIELD
EDECK stair tread sections in a similar manner along the length
of the STRINGER.
4. Install the FINISH stair panel to your nished grade elevation
and fastening to the stringer bracket. Secure this tread to the
preceding INFIELD tread section using the approved screws not
more than 3.0 inches from either end and 6.0 inches between
screws. Secure the FINISH panel bottom ange onto the
foundation column/slab using appropriate Tapcon or equivalent
screws. The FINISH panel may be cut to accomodate grade
restrictions. Cut edge to be reinforced with brackets (or equiv.)
every 6-inches along the length.
5. Install optional zinc anode system bolt through the joist web at a
location accessible in the future to inspect and replace the anode.
6. Surface nishes may be applied using polyurethane adhesive
(typical Miracle Lumberlock) using known techniques suitable to
the nish employed.
11"
7 1/4"
1
2
3
4
5
6
The material presented in this publication has been prepared for the general information of the reader. The material is believed to be technically correct and in accordance with recognized good practice at the time of
publication. Advice should be sought with respect to its suitability for any specic application. Evolutiondeck Inc., its parent company, Casata Technologies Inc., its principals and employees expressly disclaim all liability for
errors or omissions in, and misuse or misinterpretation by others, or any damages (direct, indirect, incidental or consequential) whatsoever and howsoever caused, arising out of or in connection with the use of or in reliance
on the information included in this brochure. We reserve the right to change the information included herein without notication.
PAVERDECK
tm
EDECK625-S1200-54
Evolutiondeck Inc., 3422 Old Capitol Trail, Suite 700
Wilmington, DE 19808, 1-800-725-5228 • [e-mail]
Specication, Page 5
Rev. 2016-05-01