Beam Size If Attic Above

The wooden joists or beams over your garage help hold your roof in place.

Beam size if attic above.

Engineered wood products ewp lvl span and size charts. Tables providing size selections for various beam spans and loading combinations for southern pine dimension lumber and southern pine glued laminated timber are available for the following applications. In some houses this may be the case. American standard steel c channels.

The job of headers and beams is a simple one. Window door garage door headers supporting roof loads only. Anything 5 and above we always at least double cripple. For help in understanding the results in the calculator read the section above on how to read beam span tables.

Window door garage door headers supporting roof wall floor loads. Beams of more than one ply must be fastened together with either nails or bolts. If you need a storage area above your garage strong ceiling joists are necessary to support the added weight. If you have an attic over your garage these joists also bear the load of your attic flooring and any materials you store in the attic.

Any lumberyard will be able to furnish the beam and other materials. Mechanics forces acceleration displacement vectors motion momentum energy of objects and more. Add together all live loads and dead loads that act on the member and then choose a material that will resist the load. For example a 3 ply 2x8 beam would use three 2x8s nailed together side by side.

The idea behind sizing headers and beams is straight forward. Our 12 ft long beam was made from doubled 11 7 8 in wide x 1 3 4 in thick lvls laminated veneer lumber a very common strong type of beam that looks exactly like thick plywood boards. Versa lam laminated veneer lumber lvl beams and headers eliminate twisting shrinking and splitting and deliver flatter quieter floors and structures. According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2.

On longer spans the beam may require much more bearing space as indicated by this table. American standard beams s beam american standard beams astm a6 imperial units. These nine beam spans are for built up beams made up of either 2x8 2x10 or 2x12 dimensional lumber nailed together as either 3 4 or 5 ply beams. Beams and columns deflection and stress moment of inertia section modulus and technical information of beams and columns.

Our versa lam lvl is manufactured in either alexandria lena louisiana in eastern united states or in white city oregon for the western united states.