You can also use the Wood Beam Calculator from the American Wood Council website to determine maximum rafter and joist lengths. Effects of support width have been considered when determining the loads based on shear and deflection.
2 denotes 600 mm rafter spacing only.
Pressure treated wood span tables. For instance a double 212 beam can span 12 feet. Deck joist span table. Treated wood can last more than 40 years.
Limited to span in inches divided by 360. For pressure-treated southern pine no. 3 For design parameters refer to figure 622 AS16842 and 3.
For one-span condi-tions use the span adjustment factors. The tables do not apply directly to plywood having a single span. Selection Tables 4a 4b 5a and 5b ie Joist span cantilever.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. RESIDENTIAL PRES RIPTIVE EXTERIOR WOOD DE K SPAN GUIDE ANADIAN WOOD. Strength – Live load of 30 psf plus dead load of 10 psf determines the required bending design value.
Microsoft Word – Deck Span Tabledoc Author. When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. Deck beam span table.
Span Tables for Jois ts and Rafters American Wood Council 4 Span Tables for Joists and Rafters American Wood Council DESIGN CRITERIA. 1 Refer to general notes for information that is relevant for all span tables. Deck framing tables codes specifications.
2 grade there is a method that can be used for estimating beam spans. It has been around for over 20 years. Note that tightly spaced perpendicular or diagonal wood decking that is placed on top of the joists is not included in the figure.
For face grain parallel to supports tables are based on three spans for spans of 16 and less and two spans for 24. Beam and Joist Span Tables Built-Up Wood Floor Beams Supporting One Floor in a House Maximum Spans for Uniformly Distributed Loads Species and Grade Supported Built Up Beam Size Joist Length 3-2X8 4-2X8 3-2X10 4-2X10 3-2X12 4-2X12 8 9-8 11-2 11-10 13-8 13-8 15-10 10 8-8 10-0 10-7 12-2 12-3 14-2. Deflection – For 30 psf live load.
Also available for the Android OS. At FRAMING TABLES SPANS where in addition to span tables for dimension lumber timbers we also give a rough rule of thumb that gives. These PTI protection systems are used for many types of wood products including decking fencing siding windows sheathing flooring framing and other.
Member span is not suitable for rafter spacing greater than 600mm. PTI is very common. Pressure Treated Hfir 2 or better group x Douglas Fir S.
A 2 210 can span 10 feet and so on. View Joist Rafter Tables. Simplified maximum span tables for selected visual and mechanical grades of Southern Pine lumber in sizes 24 thru 212.
Framing span tables for all types of wood construction not just decks are given separately. Pressure-treated lumber is ideal for outdoor construction as it has a long useful life span and is much less expensive than alternatives. 2 or better treated for weather andor ground exposure INSPHANDOUTSLUMBER1 Dec2000.
The treatment process involves placing a load of lumber in a huge cylindrical chamber called a retort with a door on one end that can be sealed airtight and then. This table is based on the use of Ponderosa Pine No. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
Our PWT Treated LVL has twice the PTI retentions required for UC3B with no gradient that you would see in pressure treated lumber. Space between Posts in Feet. Post size as per note 5 in Tables 4a 4b 5a 5b 6a 6b 7a and 7b.
Span Calculator for Wood Joists and Rafters also available for the Android OS. Deck joist rule of thumb.