Abstract: A shutter panel for use in a lost formwork for making a cavity floor. The panel has connection members for bearer feet. The connection members extend through holes in the shuttering panel. For marginal reinforcement of the panel around the holes, special fittings are provided, for example bracing plates, flanges or washers disposed against the underside of the panel. The holes in the shutter panel may also have an inside diameter such that the bearer feet can be passed through them from above at the time of fixing to fittings at the holes. The panel preferably consists of plaster.