When installing Optimo underfloor insulation under an existing timber floor, these straps are used to hold the batts in place. Nail or screw the strap to the joists then bend them upwards to provide support for the batts.
Specifications
| Batt width | Pieces per pack | Coverage per box (m² per pack) |
| 415mm | 250 | 53 |
| 565mm | 250 | 75 |