Are my walls strong enough for Twin slot shelving system?

Twin Slot Shelving Upright 710mm White twin slot uprights 430mm Black Twin Slot Uprights Free Delivery over £250 Top Shelf, the UK's largest range of customisable shelving & storage products twin spins slot View our range of standard 32mm pitch metal uprights and brackets to build or extend Twin Slot shelving units

twin slot bracket RBUK's Guide to Installing Twin Slot Shelving · Step 1: Marking the Placement of your Twin Slot Uprights · Step 2: Installing the First Upright