Abstract: The locking laps for vinyl siding secure adjacent siding panels and prevent them from being removed from a building structure during strong wind conditions. A locking lap assembly is secured at the two ends of each siding panel to securely connect each siding panel to adjacent siding panels. The locking lap assembly comprises a locking lap and a spacing member. The spacing member is secured to the rear surface of the siding panel. The locking lap member is secured to the spacing member and extends beyond the end of the siding panel. The spacing member provides a space between the locking lap and the rear surface of the siding panel, to allow a locking lap of an adjacent panel to be received between the locking lap and the siding panel. The locking laps of two adjacent panels overlap one another to provide a secure attachment of the adjacent panels.