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f <br /> a <br /> -6- <br /> TABLE I <br /> Maximum clear spans for wood girders <br /> one story dwellings 1 1/2 story dwellings <br /> Size in inches feet inches feet inches <br /> 4x6 5 9 4 0 . <br /> 6x6 6 0 5 2 <br /> 4x$ 6 s �� '�F �� 5 6 :i:;gig <br /> 1x10 nr $ 0 7 0 <br /> 6x8 8 0 7 0 <br /> 6xio 9 0 8 0 w <br /> TABLE II <br /> aximum clear spans for floor joists assumed live load of 40 lbs . per fr7. <br /> square foot ; dead load 10 lbs ; spacing of joists is 1611 center to center: <br /> 1 Framing Framing <br /> ize, in inches feet inches feet inches 5 <br /> 2x69 1 $ 6 } <br /> 2x6 12 1 11 <br /> 2xlO 15 3 14 4 <br /> 3x10 - 17 8 16 g , <br /> 2x12 1$ 5 17 3 <br /> TABLE III a <br /> aximum clear spans for ceiling joists live load, none ; dead load 10 lbs . <br /> per square foot . Spacing of joists is 161" center to center. <br /> Size in inches Feet inches <br /> 2x4 10 0 , •, <br /> 2x6 15 4 <br /> 2x$ 20 2 <br /> ote : Where the attic space above the ceiling joists is unfinished but is <br /> sable for storage space, or if the space is suitable for finishing into <br /> future habitable rooms, the spans for the ceiling joists shall b e figured <br /> he same as for floor joists . <br /> TABLE IV j <br /> f <br /> aximum clear spans of rafters for wood or asphalt shingle roofs : ' <br /> Para. 1 . Clear span shall mean the distance measured horizontally <br /> rom the inside of the plate to a point directly beneath the ridge ; the <br /> ctual rafter length will depend on the roof slope and must be determined <br /> ccordingly. <br /> 'Para. 2. This table is for roofs with a minimum pitch of 5" to 12" ; <br /> or the roofs with less pitch, the rafters shall be figured as floor joists . j <br /> pacing center to center 20". <br /> i <br />