Substrate the process of building a laminate countertop begins with the substrate or base.
Base cabinet with laminate countertop.
Make sure that the countertop base is level before attaching it to the base cabinets.
Fit the cabinets together so their sides and tops are perfectly aligned.
Seal the seam between the backsplash and the wall with silicone caulk that matches the color of the countertop.
Make your base equal to the size of the base cabinet on which you will be creating the countertop.
If the cabinet has a top surface fasten the countertop by screwing up through the bottom of the cabinet top into the countertop.
To install a laminate countertop in your kitchen you should start by dry fitting it to the cabinets.
Apply a bead of wood glue along the top bottom and side edges on the backside of one cabinet.
If the cabinets have no tops screw through the front rail and any blocks built into the cabinet.
Before you attach your new laminate countertop to the base cabinets you might want to add extra support near the edges especially along the back.
Set the cabinets on a flat surface.
Once the fit is confirmed the seams can be joined with butterfly clamps biscuit joiners and glue.
Your plywood base should be laid over with cement backer board that is inch thick.