2 X12 Floor Joists For Attic Room Above Garage

Attic joists for live loads.

2 x12 floor joists for attic room above garage. Planned on using the 2 6 to support 2x4x12 on 16 centers with one end attached to rafters. Joist dimensions are only part of the equation. That creates a problem in support for storage floor and only using support walls below. Average cost of adding a bonus room above a garage for all the reasons mentioned above the cost of finishing a bonus room above your garage can vary.

To insulate the floor of the room above the garage seal the space between the floor of the room and the ceiling of the garage and the top plate and the header joist with insulation. Although you can construct a garage using thicker stronger joists 2 inch by 6 inch joists are sufficient for most garages even if you intend to build an attic storage area above your garage. Ceiling joists are typically 2 8 lumber floor joists are usually 2 10 or 2x 12 lumber. Attic joists that are made from 2x8s may be acceptable for building your attic floor but because every room is variable there are no absolutes.

That s a big size and strength difference between the two types of attic joists even if the joist spacing is the same. At geoff and michelle s house supply lines for the second floor bath were tucked above the addition s floor joists and only the room s tub sits over the garage. House is a open floor plan so not a lot of support walls below. Sistering 2x6 joists next to your current 2x4 joists will simply give you a new floor height of 5 1 2 inches as opposed to the current 3 1 2 inches.

You also need to ensure that the joist spacing is adequate. Don t forget the impact on adjacent spaces. My driveway is cement so i buy new wheelsets every 5 years or so. Lan to use 2x4x36 upright screwed to ceciing joist every 24 to hold 2x6x12 s up above duct work.

The rest of the space is situated over the laundry room to tap into existing pipe chases. I also put an attic in the back 2 3 of the garage. If the attic were designed as living space those ceiling joists would become floor joists and be much bigger. This can be done through blown in insulation and unfaced or faced batt insulation.

I never store wood over my garage door more than a few boards deep. I have a shopsmith in my garage but only use it in the summer. The attic has 2 by 8 s also but it has a plywood floor hatch and a plasterboard ceiling. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or.

This is calculated from standard costs for all of the.