2x6 Floor Joists Attic

If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists.

2x6 floor joists attic.

Sistering is the process of adding a new joist next to each existing joist. 2x6 floor joist have a necessary benchmark to make them functional. 1 code requires 40 lbs. Per square foot live load plus dead load.

Since you have a floor on 24 oc joists i would use 3 4 material above. When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started. The building of this floor that s the the track plays with a significant part in a pocket floor. I would probalby place them in between the existing 2x6 s.

However they need to be select structural grade or better. We were going to sister 2x8 to the existing 2x6 but are worried about the extra weight and the huge amount of pain it will be. All meeting up on the load wall. The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example.

The standard structure usually can withstand a 1 3 8 inch thick hollow core floors with a weight upto 75 lbs. In the case of 2x6 joists you can pair them up with additional 2x6 joists by nailing them together side by side. A couple of additional thoughts i have if your new joists are lvl beams or wood i joists. We currently have 2x6 floor joist that span 16 on one side and 18 on another.

While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length. Yes you can sister 2x6 joists but you have a few problems. Find 2 in x 6 in joist hangers at lowe s today. It would be difficult to find a joist hanger that would fit a double joist comprised of a 1 3 4 lvl or i joist and 1 1 5 2x6.

But larger is not always better when builders are constructing a home or adding a room addition. Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. 2x6 joists at 16 will span 12 and support a floor live load of 40 lbs. All our current 2x6 joist are spaced 16 on center.

I m wanting to remodel our attic to add a few bedrooms.