We get several redbacks in our yard due to a cricket infestation we currently have, however, some of these spiders aren't always black, they're sometimes a light brown colour, but the same shape as a redback (juvenile perhaps?). Their webs are also the same as a redback. I recently found this one underneath our chest of drawers in the house - it was as long as the skirting is high! Please can you identify so I know for sure whether it's a redback or not (could it be a juvenile at that size?). Thanks in advance!