The Universal Attic Floor for Truss Roof estimating calculator is used to calculate the Labour, Materials and Plant items and costs involved in constructing irregular shape (non-rectangular) timber suspended floors for an attic within a truss roof.

The Universal Attic Floor for Truss Roof estimating calculator calculates the following items:
- Floor joist bracing
- Floor surface
- Insulation
- Plastering
- Decorating
- Plus all labour associated with the above
To estimate an attic suspended floor for a truss roof, you enter dimensional information in to the worksheet.
All of the items required in an attic suspended floor for a truss roof are specified from the Specification.
NOTE:
- You should also check all the pre-specified items in the Resources Output screen of the Worksheet, in particular the red highlighted “critical items” before accepting the output.
- To estimate a main attic suspended floor for a cut roof, use the Attic Suspended Floor estimating calculator.
- To estimate for an attic suspended floor to the side voids, use the Attic Suspended Floor for Side Voids estimating calculator.
- To estimate an upper floor suspended floor that is not in an attic, use the Suspended Floor estimating calculator.
- To estimate a ground floor suspended floor, use the Suspended Timber Ground Floor estimating calculator.

