Osb Roof Sheathing Span Tables

Table 2304 7 1 allowable spans for lumber floor and roof sheathing a b for si. For pricing and availability. The span rating on apa rated sheathing panels appears as two numbers separated by a slash such as 32 16 48 24 etc.

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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.

Osb roof sheathing span tables.

Also make sure that you get your supporting timbers at the correct spacing. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. 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. The values given in tables 1 and 2 represent the maximum allowable loads for plywood or osb.

Page 6 of 7 v1 0 01 2008 osb roof design example calculations using asd 4x8 foot 24 16 teco sheathing span. Typically 3 4 18mm for floors and 3 8 9mm for walls and 1 2 11mm roof. For sanded plywood panels see table 3. In some cases load capacities of rated sheathing and rated sturd i floor.

The span rating on sheathing span panels appears as two numbers separated by a slash e g 32 16 or 48 24. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. 1 inch 25 4 mm. Tables 2a through 2c apply to apa rated osb sheathing apa rated osb structural i sheathing and apa rated osb sturd i floor respectively.

The first number is the maximum on center o c support. Or just have a look at the table below. Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. Structural floor sheathing and structural roof sheathing shall comply with sections 2304 7 1 and 2304 7 2 respectively.

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

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