architecture - engineering - construction
APA - The Engineered Wood Association
APA Residential & Commercial
APA Residential & Commercial - Page 25
APA Residential & Commercial
TABLE 8 |
APA
RATED STURD-I-FLOOR(a) |
| |
|
Fastening:
Glue-Nailed(c) |
Fastening:
Nailed-Only |
| |
|
|
Maximum Spacing (in.) |
|
Maximum Spacing (in.) |
| Span Rating (Maximum Joist Spacing) (in.) |
Panel Thickness (b) (in.) |
Nail Size and Type |
Supported Panel
Edges (g) |
Intermediate Supports |
Nail Size and Type |
Supported Panel
Edges (g) |
Intermediate Supports |
| 16 |
19/32, 5/8 |
6d ring- or screw-shank(d) |
12 |
12 |
6d ring- or screw-shank |
6 |
12 |
| 20 |
19/32, 5/8 |
6d ring- or screw-shank(d) |
12 |
12 |
6d ring- or screw-shank |
6 |
12 |
| 24 |
23/32, 3/4 |
6d ring- or screw-shank(d) |
12 |
12 |
6d ring- or screw-shank |
6 |
12 |
| 7/8 |
8d ring- or screw-shank(d) |
6 |
12 |
8d ring- or screw-shank |
6 |
12 |
| 32 |
7/8 |
8d ring- or screw-shank(d) |
6 |
12 |
8d ring- or screw-shank |
6 |
12 |
| 48 |
1-3/32, 1-1/8 |
8d ring- or screw-shank(e) |
6 |
(f) |
8d ring- or screw-shank(e) |
6 |
(f) |
(a) Special
conditions may impose heavy traffic and concentrated loads that required construction in
excess of the minimums shown. See page 36 for heavy duty floor
recommendations.
(b) Panels in a given thickness may be
manufactured in more than one Span Rating. Panels with a Span Rating greater than the
actual joist spacing may be substituted for panels of the same thickness with a Span
Rating matching the actual joist spacing. For example, 19/32-inch-thick Sturd-I-Floor 20
oc may be substituted for 19/32-inch-thick Sturd-I-Floor 16 oc over joists 16 inches on
center.
(c) Use only adhesives conforming to APA
Specification AFG-01 or ASTM D3498, applied in accordance with the manufacturer's
recommendations. If OSB panels with sealed surfaces and edges are to be used, use only
solvent-based glues;check with panel manufacturer.
(d) 8d common nails may be substituted if
ring- or screw-shank nails are not available.
(e)10d common nails may be substituted with
1-1/8-inch panels if supports are well seasoned.
(f) Space nails maximum 6 inches for 48-inch
spans and 12 inches for 32-inch spans.
(g) Fasten panels 3/8 inch from panel edges.
TABLE 9 |
RECOMMENDED
UNIFORM FLOOR LIVE LOADS FOR APA RATED STURD-I-FLOOR AND APA RATED SHEATHING WITH LONG
DIMENSIONS PERPENDICULAR TO SUPPORTS |
| |
|
|
|
Allowable Live Loads
(psf)(a) |
| |
|
|
|
Joist Spacing (in.) |
| Sturd-I-Floor Span Rating |
Sheathing Span Rating |
Minimum Panel Thickness (in.) |
Maximum Span (in.) |
12 |
16 |
20 |
24 |
32 |
40 |
48 |
| 16 oc |
24/16,32/16 |
7/16(c) |
16 |
185 |
100 |
|
|
|
|
|
| 20 oc |
40/20 |
19/32, 5/8 |
20 |
270 |
150 |
100 |
|
|
|
|
| 24 oc |
48/24 |
23/32, 3/4 |
24 |
430 |
240 |
160 |
100 |
|
|
|
| 32 oc |
60/32(b) |
7/8 |
32 |
|
430 |
295 |
185 |
100 |
|
|
| 48 oc |
|
1-3/32, 1-1/8 |
48 |
|
|
460 |
290 |
160 |
100 |
55 |
| (a) 10 psf dead load assumed. Live load
deflection limit is l/360. (b) Check with supplier
for availability. |
(c) 19/32 in. is minimum thickness of Rated
Sturd-I-Floor. Note: Shaded
construction meets Code Plus recommendations. |
|
