Floor Joist Spans Australia

Dead load deflection is limited to l 360 and total load deflection is limited to l 240.

Floor joist spans australia. Joists continuous span beam. The full terms and. Maximum floor joist span for no. Span calculator for wood joists and rafters also available for the android os.

The maximum span is measured o c. From h3 losp radiata to either an f7 or gl8 structural grade and are to be used in accordance with the relevant span table. More options for more economical floor joist layouts select the economy section 240 45 300 45 360 45 of appropriate depth to accommodate the spans of the main area of the floor. Dead load weight of structure and fixed loads 10 lbs ft 2.

Our joists give you more options for designing economical floor joist layouts. The spans are based on simple span joists. Also available for the android os. Table 6 floor joists continued 140 joist spacing mm 450 600 maximum joist span and cantilever mm span cantilever span cantilever continuous spans continued 85 x 40 1900 400 1700 375 90 x 35 1900 400 1700 375 90 x 45 2100 450 1900 400 120 x 35 2600 550 2400 500 120 x 45 2900 600 2600 550 joist size depth x breadth mm note.

Internal floor joists f7 42mm 30 deck joists f7 42mm 31 deck bearers f7 32. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Of bearings and is based on uniformly loaded joists. The provision of replacement product in australia.

This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. Floor joists 6 lintels 8 rafters 12 ceiling joists 15 hanging beams member16 underpurlins 17 strutting beams 18. Live load is weight of furniture wind snow and more. 1 psf lb f ft 2 47 88 n m 2.

2 grade of douglas fir are indicated below.