Osb Roof Sheathing Span Tables

A the left hand number denotes the maximum recommended spacing of supports when the panel is used for roof sheathing.

Osb roof sheathing span tables.

The values given in tables 1 and 2 represent the maximum allowable loads for plywood or osb. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. Table 2304 7 1 allowable spans for lumber floor and roof sheathing a b for si. The span rating on sheathing span panels appears as two numbers separated by a slash e g 32 16 or 48 24.

For pricing and availability. Also make sure that you get your supporting timbers at the correct spacing. For sanded plywood panels see table 3. Tables 2a through 2c apply to apa rated osb sheathing apa rated osb structural i sheathing and apa rated osb sturd i floor respectively.

Typically 3 4 18mm for floors and 3 8 9mm for walls and 1 2 11mm roof. Or just have a look at the table below. The first number is the maximum on center o c support. Osb design and application guide 5 span ratings span rating numbers for sheathing span and floor span indicate the maximum spacing of supports over which the panels should be placed.

Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. The span rating on apa rated sheathing panels appears as two numbers separated by a slash such as 32 16 48 24 etc. Page 6 of 7 v1 0 01 2008 osb roof design example calculations using asd 4x8 foot 24 16 teco sheathing span. Apa rated sheathing span rating bond classification mill number apa panel grade product standard and panel grade hud recognition performance category apa rated osb sheathing roof panels performance category apa span rating allowable live load for roofs psf 3 8 24 0 30 7 16 24 16 40 15 32 32 16 70 1 2 32 16 70 19 32 40 20 130 23 32 48 24.

In some cases load capacities of rated sheathing and rated sturd i floor. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.