Structural Plywood Flooring Span Tables

Floor joist spacings table 2 product identification code nominal thickness mm grade length mm.
Structural plywood flooring span tables. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. Load span tables for ps 1 plywood apa the engineered wood association number z802k march 1998 load span tables for specific wood structural panel applications are included in several apa publications. Load span tables for apa structural use panels number q225g february 2011.
Floor span sheathing span and non span rated plywood underlayment. Tables 2a through 2c apply to apa rated osb sheathing apa rated osb structural i sheathing and apa rated osb sturd i floor respectively. Floor span 16 oc 0 594 0 625 20 oc 0 594 0 625 24 oc 0 719 0 750 32 oc 0 875 1 000 48 oc 1 125 a the values in this table correspond with those published in the 2005 edition of the af pa american wood council s commentary national. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
The span rating on apa rated sturd i floor and apa rated siding panels appears as a single number. Plywood flooring product identification code nominal thickness mm grade length mm width mm coverage per sheet m2 sheets per pack weight per sheet approx kg domestic flooring commercial flooring 15 30 5 15mm cd 2400 1200 2 88 35 24 2700 1200 3 24 35 27 17 24 7 17mm cd 2400 1200 2 88 32 26 2700 1200 3 24 32 30 19 30 7 19mm cd. Table 9 1 in span tables for joists and rafters figure 5 gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1 5 inches. Block if the floor is being used as a diaphragm for lateral wind and.
For sanded plywood panels see table 3. The tables permit a bearing length of up to 3 5 inches but since 1 5 is probably the worst case that you ll encounter for joist or rafter bearing it s a safe value. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. Edge ecoply structural plywood.
Examples of gradestamps for plywood used in various structural applications panel gradestamps information and application recommendations. Recommended loads for sheathing and flooring applications in these publica tions directly reflect minimum perfor mance criteria given in voluntary. Table 1d applies to apa rated plywood structural i sturd i floor. View joist rafter tables.