Ceiling Joist Support

Attic space a flat roof or a second story depending on your construction plans.

Ceiling joist support.

The lengths and sizes of joists vary depending on the species and quality of the lumber used. Ceiling joists support whatever is directly above them. When a load is applied to a joist the wood fibers along the bottom edge go into tension and those along the top go into compression fig. The ceiling joists create a truss to begin with i m suggesting adding another member to the truss.

The other surfaces are the walls which the joists span the distance between providing a source of support to keep the walls from shifting. For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine. This scheme is predicated on achieving serious load carrying connections well thought out and installed a 35 or l clips should to it at all joints. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor.

The size of the ceiling joist also is accounted for in joist spacing. Tie to roof rafters at peak tie to ceiling joists roof rafters to ceiling joists at the eaves. Joist hangers are designed to provide support underneath joist hangers are designed to provide support underneath the joist rafter or beam to provide a strong a connection. Ceiling joists also help to anchor the walls to prevent them from collapsing inwards or outwards and help to keep the roof up.

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. Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. Wood beam calculator american wood council website rafter and joist span faq. The ceiling beam or ceiling joist has two prime functions.

How joists support floors and ceilings joists the horizontal members that span two walls and or beams have to carry the weight of the walls people furniture appliances and other stuff we place on them. If this is the case with your structure use the floor joist table to determine maximum joist length load. Simpson strong tie offers a diverse line of hangers to handle almost any application with top flange concealed flange and field skewable and slopeable options. The second is as the name implies to support the ceiling of the structure or room.

They also help to keep the walls of the house from. Ceiling joist framing is undertaken after the walls are erected. Ceiling joists provide support for more than one surface in your home.