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[DOC File]OAS - Organization of American States: Democracy for peace ...
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c) The minimum sizes of roof members should be ridge beam 2" x 6" and rafters 2" x 4" at 2' 0" centres. The same size rafters are to be used for mono - pitch (shed) roofs. d) In the case of the hip roof, hip rafters are introduced into the structural frame as shown. (Fig C-7). The minimum size of the hip rafters should be 2" x 6".
2x8 roof rafters span table

[DOC File]Organization of American States
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1802.3 Sizes, Spacing and Allowable Spans . The spans for wood joists, rafters and beams shall conform to the spans shown in Table E-1 of the Building Guidelines, and in Table 2.825.1 in Part 2 Section 8 of CUBiC for the uniform live loads shown in the Table. 1802.4 Notching and Drilling
2x6 rafter span

SHEAR INSPECTIONS - Richmond, California
Rafter sizes & spacing OK Table 23-IV-R-1 or -3. Purlin size is equal to or larger than rafter (2320.12.7) Purlin struts go to bearing walls, are 45 deg. min. from horizontal & are. laterally braced if greater than 8’ If trusses are used, review approved truss plans & details. Compressive webs are laterally supported as per truss details if ...
rafter span tables residential

[DOC File]DESIGN PRINCIPLES FOR ROOF STEEL TRUSS
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Fan trusses are used when the Rafter members of the roof trusses have to be subdivided into ODD number of panels. Pitch =L/h=4 to 10. h=L/4 to L/10 . The mass per sq.m of : Fink trusses is lowest for spans from 15m upwards. Pratt trusses from 10 m to 20m. And of Portal frames from 10m to 20m.
shed roof rafter span table

[DOC File]Fire Service Ventilation (7th Edition)-All Chapter Numbers
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In open web trusses, spans of up to 70 feet are attainable using a single 2x4 inch or two 2x3 inch members as the top and bottom chords. In open web trusses, joining 2x4 inch lumber with mitered and glued finger joints, a continuous member of 20 feet or more is possible. Normal spacing of joists in open web truss construction is 2 feet on center.
rafter span tables

[DOC File]PRESCRIPTIVE METHOD FOR RESIDENTIAL
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Rafter spans shall be selected based on the higher of the ground snow load or the equivalent snow load converted from the wind speed. When used to achieve reduced rafter sizes, a rafter support brace shall be a minimum of 2 x 4 x 33 mil C-shaped member with maximum length of 8 feet (2.4 m) and shall be connected to a ceiling joist and rafter ...
roof rafter size calculator

[DOC File]Florida Building
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2322.1.6 Plywood subflooring shall be continuous over two or more spans with face grain perpendicular to the supports. The allowable spans shall not exceed those set forth in Table 2322.1.6. TABLE 2322.1.6 PLYWOOD SUBFLOOR1 . PANEL SPAN RATING2 MAXIMUM PLYWOOD SPAN (IN.)3 32/16 40/20 48/24 164 204 24 For SI: 1 inch = 25.4 mm. NOTES: 1.
lean to rafter span

[DOC File]JOIST AND STRUCTURAL GLOSSARY
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A structural member which is intended for use at very short spans (10 feet or less) where open web steel joists are impractical. They are usually used for short spans in skewed bays, over corridors, or for outriggers. It can be made up of two or four angles to form channel sections or box sections. See Angle Unit. [Return to Glossary] [K] K ...
2x6 roof rafter span table

[DOCX File]CORPORATION
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Ceiling joists, floor joists, manufactured trusses or roof rafter sizes, directions of run, spans and spacing (provide truss specs if using manufactured trusses). Location of plumbing/heating fixtures and equipment. Shear wall locations with foundation, hold-down, nail spacing & other related requirements. ...
2x8 roof rafters span table

Rafter sizes and spans