2x4 Ceiling Joist
Also available for the android os.
2x4 ceiling joist. Span calculator for wood joists and rafters also available for the android os. The space on top of the ceiling will be used for storage. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor.
I have a garage with a open ceiling height of 16 and i m building an office 10 by 10 with a ceiling height of 10 feet. This is a 2 x 4 nailed flat down against the top of the joist perpendicular and right along the center of the span and 2 x 6 or more nailed into it and turned like a joist or blocking bridging or similar x bracing. 2x4 s actual size spaced 16 on center running the width of the building uninterrupted with the ends resting on top of the wall top plate.
Although 2 inch by 6 inch lumber is used most often in ceiling construction to support 5 foot by 8 foot sheetrock the material commonly used for ceilings other sizes of lumber may be used such as 2 inch by 4 inch and 2 inch by 8 inch lumber. I would like to know if i can use 2x4 s for ceiling joists for a 10 span instead of 2x6 s. Table r802 4 1 ceiling joist spans for common lumber species uninhabitable attics without storage live load 10 psf l δ 240.
Each joist is strong enough to support my weight 175lbs concentrated in a 1 segment of the joist and there isn t much deflection either. Build your own concrete foundation forms introduction to roof framing. While every effort has been made to insure the accuracy of the information presented and special effort has been made to assure that the information reflects the state of the art neither the west coast lumber inspection bureau the american wood council nor its members assume any responsibility for any particular design prepared from this online span calculator.
So what i m really asking is this. Spans for ceiling joists shall be in accordance with tables r802 4 1 and r802 4 2. The size of the ceiling joist also is accounted for in joist spacing.
Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists.