If you want a full blown attic truss with a room the cost of a single truss is just 158.
Attic storage between tresses.
Scrap of plywood over the chords and set about 40 lbs.
This same truss framed as a light storage truss costs just 87.
Had you incorporated a full sized attic truss in your roof i ll bet you could have created a 15 wide by 30 foot long room for less than 1 350.
Instead of piling all of your boxes in the middle use the space between your trusses.
Is a safe estimate.
Typically this type of upgrade will run you about 2 a square foot.
Some roofs are framed with special storage trusses that leave an open central space suitable for storage.
The horizontal bottom chords of most garage trusses are designed to carry the weight of drywall and insulation.
So if your ceiling is unfinished you have some excess carrying capacity up there.
As you can see we put a layer of plywood down to create a very nice storage room.
Spread web storage trusses are engineered to have a small area to allow storage within.
Select the roof truss and click the open object edit button.
That means you could lay a 2 x 4 ft.
Change the bottom chord depth to match your floor structure depth for floor 2.
Don t use 5 8 plywood as it only adds more weight.
Reducing the amount you can safely store.
Check the box beside force truss rebuild.
We specified attic trusses and ended up with a storage area in the attic that is approximately 48 long by 18 wide.
Of stuff on it.
In this case 11 7 8 will be used.
This storage area is not meant for occupancy but allows for storage up to 25 pounds per square foot.
Use 3 8 or 1 2 plywood if you have to lay something down and lay it perpendicular to the truss chords.
Then the remaining floor space can hold big ticket items like that christmas tree you refuse to take apart.
Check the box beside attic truss.
Trusses can be designed to produce an open attic as shown in the picture.
Use common sense and do not overload the trusses.
On the general panel of the roof truss specification dialog.