The floor sheathing in a corridor of a building is to be sized for dead plus live load and span/240 deflection criterion. 4-ply sheathing (stress parallel to the strength axis) is to be used over nominal 2 in framing members that are spaced 24 in apart, the sheathing is placed so that the 8 ft dimension is perpendicular to the framing members, Determine the sheathing thickness if the dead load is 10 psf and live load from occupancy is 100 psf using LRFD method. 1-1/8 PD Table C9.2.3 Relationship between Span Rating and Nominal Thickness Nominal Thickness (in.) Span Rating 3/8 7/16 15/32 1/2 19/32 5/8 23/32 3/4 7/8 Sheathing 24/0 P A A A 24/16 P A 32/16 P A A A 40/20 P A A A 48/24 P A A Single Floor P P A P A P A AY ID PD 4 P 16 oc 20 oC 24 oc 32 oc 48 OC P P= Predominant nominal thickness for each span nating A=Alternative seminal thickness that may be available for each pan nating. Check with suppliers regarding availability. The floor sheathing in a corridor of a building is to be sized for dead plus live load and span/240 deflection criterion. 4-ply sheathing (stress parallel to the strength axis) is to be used over nominal 2 in framing members that are spaced 24 in apart, the sheathing is placed so that the 8 ft dimension is perpendicular to the framing members, Determine the sheathing thickness if the dead load is 10 psf and live load from occupancy is 100 psf using LRFD method. 1-1/8 PD Table C9.2.3 Relationship between Span Rating and Nominal Thickness Nominal Thickness (in.) Span Rating 3/8 7/16 15/32 1/2 19/32 5/8 23/32 3/4 7/8 Sheathing 24/0 P A A A 24/16 P A 32/16 P A A A 40/20 P A A A 48/24 P A A Single Floor P P A P A P A AY ID PD 4 P 16 oc 20 oC 24 oc 32 oc 48 OC P P= Predominant nominal thickness for each span nating A=Alternative seminal thickness that may be available for each pan nating. Check with suppliers regarding availability