Osb Roof Sheathing Span Tables

Structural floor sheathing and structural roof sheathing shall comply with sections 2304 7 1 and 2304 7 2 respectively.

Osb roof sheathing span tables.

Tables 2a through 2c apply to apa rated osb sheathing apa rated osb structural i sheathing and apa rated osb sturd i floor respectively. In some cases load capacities of rated sheathing and rated sturd i floor. For pricing and availability. 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. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. The span rating on apa rated sheathing panels appears as two numbers separated by a slash such as 32 16 48 24 etc. The first number is the maximum on center o c support.

A the left hand number denotes the maximum recommended spacing of supports when the panel is used for roof sheathing. 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. Table 2304 7 1 allowable spans for lumber floor and roof sheathing a b for si. Also make sure that you get your supporting timbers at the correct spacing.

Page 6 of 7 v1 0 01 2008 osb roof design example calculations using asd 4x8 foot 24 16 teco sheathing span. The span rating on sheathing span panels appears as two numbers separated by a slash e g 32 16 or 48 24. 1 inch 25 4 mm. 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.

Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.