A general purpose floor lock may be used on platform trucks, fixture dollies, or equipment with casters. Simple foot pressure immobilizes equipment. Locks when large friction face is pressed against the floor. To release simply kick release rod. Brake is independent of casters and can be installed to any convenient location on the cart. Vertical mounting plate designed to mount to sides of carts and other portable products. The Spring loaded pad accommodates uneven floors. Unit mounts with pad off the floor when retracted.