Technical Specifications
Weyerhaeuser Edge
™
and Edge Gold
™
Specier’s Guide OSB-4000
|
February 2018
A Note About Floor Performance
Floor panels are an important component in creating a floor that feels good to customers. The span rating shown on a panel represents a structurally acceptable floor
performance level. Floor performance can be enhanced to meet higher customer expectations in several ways:
■
Consider using thicker panels.
■
Glue and nail flooring for improved connections to help resist vibrations, minimize nail pops, and transfer loads more evenly. Weyerhaeuser recommends using solvent-
based subfloor adhesives that meet ASTM D3498 (AFG-01) performance standards. When latex subfloor adhesive is required, careful selection is necessary due to a
wide range of performance between brands.
■
Use stiffer joists or a narrower joist spacing.
Choosing the optimal combination of these parameters can be difficult. To predict floor performance and evaluate the relationship between the cost and the “feel” of a
floor, use Trus Joist
®
TJ-Pro
™
Ratings.
SECTION PROPERTIES AND LOAD/SPAN TABLE
4
19
⁄32"
5
⁄8"
23
⁄32"
3
⁄4"
7
⁄8" 1" 1
1
⁄8"
Approximate weight (psf) = 2.0 2.1 2.4 2.5 2.9 3.3 3.6
Nominal thickness (in.) t = 0.594 0.625 0.719 0.750 0.875 1.000 1.125
Area (in.
2
/ft) A = 7.125 7.500 8.625 9.000 10.500 12.000 13.500
Moment of inertia (in.
4
/ft) I = .209 .244 .371 .422 .670 1.000 1.424
Section modulus (in.
3
/ft) S = .705 .781 1.033 1.125 1.531 2.000 2.531
Statical moment (in.
3
/ft) Q = .529 .586 .775 .844 1.148 1.500 1.898
Shear constant (in.
2
/ft)
Ib/Q
= 4.750 5.000 5.750 6.000 7.000 8.000 9.000
Panel Section Properties
(1)
Geometric properties are calculated on a per-foot-of-panel width basis. These properties may be used to find design
stresses when required. To do so, divide the design capacity by the applicable section property. You may also calculate the
geometric cross-sectional properties for a specific Edge
™
or Edge Gold
™
panel by using the nominal thickness from the
table above and assuming a uniform rectangular cross section.
(1) Properties based on rectangular cross section of 1' width.
Edge
™
and Edge Gold
™
panels are
intended for dry-use applications
General Notes
■
Table is based on:
– Uniform loads. See PS2 and local building codes for concentrated load and
other requirements.
– Untreated Exposure 1-rated panel in dry conditions.
– Typical sheathing applications such as floors, walls, and roofs.
– 2x supports for span configurations less than 48" on-center. Support width
effects have been considered.
– 4x supports for span configurations equal to or greater than 48" on-center.
Support width effects have been considered for shear and deflection
calculations. Moment calculations do not consider support width effects.
Span
Rating
Nominal
Thickness
Load
Calculation
Based on
(1)(2)
Span
Normal Orientation, Strength Axis
Perpendicular to Supports
Strength Axis Parallel
to Supports
(3)
12" 16" 19.2" 24" 30" 32" 36" 40" 48" 60" 12" 16" 24"
20" o.c.
19
⁄32",
5
⁄8"
Deflection 914 344 188 91 45 36 32 23 15 175 66 22
Strength 390 270 188 120 77 68 43 35 24 210 118 42
24" o.c.
23
⁄32"
Deflection 1,305 491 269 130 64 52 46 33 21 10 351 132 45
Strength 476 345 250 160 102 90 57 46 32 20 323 181 65
32" o.c.
7
⁄8"
Deflection 2,828 1,064 582 282 138 113 99 71 46 23 1,011 381 128
Strength 571 414 339 218 139 122 77 63 44 28 570 321 114
48" o.c.
1
1
⁄8"
Deflection 5,003 1,882 1,030 499 244 199 175 126 82 40 2,158 812 274
Strength 733 531 435 342 256 225 142 115 80 51 733 531 204
(1) Deflection calculation based on L/360 deflection limit. The allowable load for other deflection limits can be computed as follows:
– for L/240 limit, multiply by 1.5
– for L/180 limit, multiply by 2.0
– for L/480 limit, divide by 1.5
(2) Strength calculation based on the minimum of bending or shear.
(3) Values may be increased for Structural 1 sheathing with strength axis parallel to supports. For values based on deflection, multiply by 1.60. For values based on strength, use the equations
provided and Structural 1 sheathing design values.
Allowable Uniform Loads (PSF) for Edge
™
and Edge Gold
™
Floor Panels (100% Load Duration)
■
For Strength Axis Perpendicular to Supports:
– 3-span condition is assumed for spans of 32" or less.
– 2-span condition is assumed for spans greater than 32".
– 1-span condition requires the use of the span adjustment factor on page 3.
■
For Strength Axis Parallel to Supports:
– 3-span condition is assumed for spans of 16" or less.
– 2-span condition is assumed for spans of 24".
– 1-span condition requires the use of the span adjustment factor on page 3.