What is span rating on plywood?
The span rating provides a measure of the strength and stiffness in the direction parallel to the grain of the face and back veneers of the panel. The span rating on SHEATHING SPAN panels appears as two numbers separated by a slash (e.g., 32/16 or 48/24).
How far will 3/4 plywood span?
Maximum span 24 inches where 3/4-inch wood finish flooring is installed at right angles to joists.
How far can you span 5/8 plywood?
2304.8 Floor and Roof Sheathing
| PANEL GRADE | THICKNESS (inch) | MAXIMUM SPAN (inches) |
|---|---|---|
| Structural I sheathing | 19/32, 5/8 | 24 |
| 23/32, 3/4 | 24 | |
| Sheathing, other grades covered in DOC PS 1 or DOC PS 2 | 7/16 | 16 |
| 15/32 | 24 |
Does OSB have a span rating?
Span Rating on APA Trademarked OSB Panels The Span Rating denotes the maximum permitted centre to centre spacing of supports. It is particularly important for Rated Sheathing and Rated Sturd-I-Floor when the long panel dimension or strength axis is across two or more supports.
What size is 40 20 plywood?
x 4 ft. x 10 ft.; Actual: 0.593 in. x 48 in. x 120 in.)
What size is 48 24 plywood?
APA Rated Sheathing, 48/24 Span Rating, 23/32 inch, 4×8 | The Plywood Company of Fort Worth.
How much weight can 23/32 plywood hold?
Thickness
| Span Rating | Thickness | Maximum Live Load |
|---|---|---|
| 16 oc | 19/32 inches | 185 pounds |
| 24 oc | 19/32 inches | 270 pounds |
| 20 oc | 23/32 inches | 240 pounds |
| 32 oc | 7/8 inches | 295 pounds |
What is 19 32 OSB used for?
Shop OSB 19/32 Rated Sheathing OSB is a material with favorable mechanical properties that make it particularly suitable for load-bearing applications in construction. It is now more popular than plywood in the structural panel market. The most common uses are as sheathing in walls, flooring, and roof decking.
What are the plywood grades?
There are four main grades of plywood veneer or ‘sheets’: A, B, C, and D. Each veneer contains two grades, with the corresponding compounds labeled as ‘AB’ or ‘BC,’ for example. The first letter refers to the ‘face’ veneer,’ while the second one is for the ‘back’ sheet.
What does APA mean on plywood?
American Plywood Association
Adhesive and technology improvements eventually led to the manufacture of structural plywood from Southern pine and other species, and in 1964 the Association changed its name to American Plywood Association (APA) to reflect the national scope of its growing membership.
What is the span rating of plywood?
Plywood Strength. Plywood span ratings indicate the distance between framing members for roofing and flooring. The span rating looks similar to a fraction and gives the roof span first and the floor span second. For example, 24/16 indicates that the distance between two framing members must not exceed 24 inches on a roof, and 16 inches on a floor.
What is APA rated plywood?
Plywood APA Rated Siding is often used for shear wall sheathing. The thickness of the panel at the point of nailing on the panel edges governs shear values. Other APA Rated Siding panel types may also qualify for shear values on a proprietary basis.
What is the APA rating for plywood?
An APA stamp confirming compliance appears on each panel. Fire Rating: Plywood 3/8” and thicker has been generically recognized as having a Class C (III) flame-spread rating without need for test or label according to HUD/ FHA Manual of Acceptable Practices,…
What is span rating?
Span Rating. The Span Rating denotes the maximum permitted centre to centre spacing of supports, (in inches) over which the panels should be installed in normal construction.