How to Install Laminate Countertops

Cut the sealant along the backsplash. Remove the corner bolts and screws that hold down the cabinets from underneath. In some cases, you’ll also have to cut the glue. Check to make sure your dishwasher isn't fastened to the underside of the countertop.

Pull a little on the old top; it should come off in one piece. You can use the old countertop as a template for cutting your new laminate countertop.

For this step, it’s important to understand how to cut laminate countertop correctly. Cut the new countertop to length on the backside using a fine-tooth saw blade. Smooth the edges with a file, filing in only one direction.

Check to see that the cabinet drawers will clear the front edge of your new laminate countertop. If not, you can attach buildup strips underneath the countertop. Some laminate comes with these strips. You can also make your own with 1-inch-by-2-inch pieces of lumber. Hold them on the cabinets, drill pilot holes and attach the strips with nails or short wood screws about every 2 feet, staying 2 inches from the ends.

Run a piece of tape along the top of the backsplash to mark later. Set the countertop in place. Try to get the mitered corner as tight as possible and tighten the miter bolts.

You’ll probably notice a gap along the wall. Set a compass to the width of the widest gap and scribe a line along the back edge. Take off the new countertop and sand to the line with a belt sander. File any burrs, filing in a single direction away from the surfaces. Recheck the fit, making any additional adjustments.

Add end trim and finish where the counter meets the walls and where it overhangs. If you have an iron-on end to cover exposed edges, stick the piece on, hold a damp cloth over it and press with an iron. The edges can be trimmed and touched up with a file.

To make a cutout for an existing sink and range top, use the old laminate countertop as a guide. If you’re installing a new sink or range top, use the template that comes in the box. If your sink or range top didn't come with a template, set the item upside down on top of the new countertop. Center it and trace the outline. Trace a band 1/2 inch around the edge on the inside of the outline.

Your cut will be on the 1/2-inch line inside of the template edge. Place masking tape around the edges to protect the countertop. Drill a few 1/2-inch starter holes in each corner of your guide. Cut out the piece completely and be careful not to let it fall. File any rough edges until smooth so you won't cut your hand or get splinters when installing the range top or sink.

After you’ve made the cutouts, it’s important to understand how to secure a countertop to a cabinet properly. Before you attach your new laminate countertop to its base, you might want to add extra support near the edges, especially along the back. Drill through the buildup strips or add angle brackets inside your cabinets. Set them just below the top of the strips. Position the countertop, starting with the longest piece. Apply the recommended adhesive at the miter and snug up the miter bolts. Tap the seam with scrap wood and a mallet to get it even.

Tighten the miter bolts all the way and avoid cracking the substrate. Clean up any excess glue. Use #8 pan head screws to affix the top to the brackets.

Set the sink and range into place and apply silicone around the edges and back wall. Reconnect the plumbing.

Install your cabinet drawers and doors. Now step back and admire your updated kitchen. To see how laminate countertops can transform a space, check out our budget-friendly kitchen makeover.