Laminating Abeam With Plywood

How to build a three ply laminated 2x10 beam and what fasteners to use.
Laminating abeam with plywood. Plywood i beams are strong and used to support floors and roofs in homes and other building projects. A triple 2 10 beam has a bending resistance factor of 64 2. How to make your own beam when building a cabin. Space and place the strips of plywood 3 5 inches apart.
It is l shaped and will have 2 long beams 27 5 and 31. I ve got a lot of questions on laminating wood techniques and i notice a number of folks are interested in how to laminate plywood sheets. Glued laminated timber also known as glulam is a versatile and innovative construction material that builders love to use for commercial and residential projects. A beam of four 2x10s and no plywood has 18 more bending resistance than three 2x10s with plywood but a beam of two 2x12s has 1 5 less bending resistance than the triple 2 10 beam with no plywood.
It also covers veneer laminating. Laminated and single piece beams are often reinforced with plywood. Ernie conover demonstrates how to apply glue to the faces and clamp them to create a strong bond. Not only is it a solid material but it is widely available on the market.
How to laminate plywood to create thicker pieces. This is also routine procedure for some ceiling or floor joists that are manufactured in. This can be done by cutting the strips of plywood to be spaced between boards and it is important you cut these strips just 1 inch less than the width of the boards. Assemble the 20 foot beam.
Although you can attempt to make do it yourself laminated beams or buy used glulam beams for sale it is. Learn the proper way to glue two pieces of plywood together to make a strong thicker piece. The next step to making your 20 foot wood beam is cutting plywood spacers. Its convincing but is the author talking about outdoor weather exposed beams.
For built up beams using plywood i followed the link and gave a read. Add plywood between the 2x10s and the factor increases 15 to 73 7. How to strengthen beams using plywood. By patrick long island ny i am building a ground level deck max 24 of the ground.
If you re going to use built up beams exterior i would say as a minimum you need pt plywood not cheap and graceshield over the top to keep the water out.