Laminate floors are reasonably easy for a DIY homeowner to install. Laminate flooring is packaged as a number of tongue and groove planks, which are designed with a click-in locking system. The standard practice for installing laminate flooring is to float the floor over a foam or fibre board underlay, which provides moisture, insulation and sound-reducing properties. An expansion gap of 10mm is required between the flooring and any immovable object such as walls and door frames, this allows the flooring to expand without causing damage to the boards or anything that gets in its way. Skirting boards can be removed and then reinstalled after laying of the flooring is complete for a neater finish, or they can be left in place with scotia beading fixed around the edge. Saw cuts on the planks are usually required at edges and around cupboard and door entrances, but professional installers typically use door jamb undercut saws to cut out a space to a height that allows the flooring to go under the door jamb & casing for a cleaner look.
Improper installation can result in peaking, in which adjacent boards form a V shape projecting from the floor, or gaps, in which two adjacent boards are separated from each other.