Once the walls are finished in a new kitchen, the next step is installing the cabinets. It's usually not that difficult, but cabinet installation does require some basic carpentry skills.

With a little ingenuity you will be able to handle minor discrepancies such as; walls, corners and floors that aren't plumb, square or level. And the whole process will go much easier if you have a layout plan to follow.

• Marking Walls For Cabinet Layout
• Cabinet Installation Tips
• Installing Upper Wall Cabinets
• Setting Base Cabinets
• Installing Filler Pieces
• Installing Island Cabinets

Before starting any installation, it's a good idea to mark some level and plumb reference lines on the walls so everything lines up just right.

Determine the highest spot on the floor with a level and measure up the height of the cabinets (34-1/2" in our case). Draw a level line through that point corner to corner to represent the top of the base cabinets.

From that line measure up another 19-1/2" (1-1/2" for the countertop height and 18" for the typical spacing between countertop and wall cabinets). Draw a level line through that point corner to corner to represent the bottom of the wall cabinets.

Now transfer the cabinet dimensions from your plan to the lines for both the base and wall cabinets to make sure the layout will work.

NOTE: Most stock cabinet layouts won't fit perfectly within a given wall space, but cabinetmakers provide narrow filler pieces to literally fill in the gaps between cabinets. Place your layout so that any gaps fall in the least conspicuous areas.

Cabinet Installation Tips

It's easy to "ding up" new cabinet doors or drawers while installing them. So, remove the doors and drawers beforehand and store them in a safe place until you're done.

Use masking tape to label and number each cabinet with corresponding labels and numbers on each door and drawer so you can match them up later.

Cabinets must be securely fastened to the wall framing, so lightly mark the positions of the wall studs before starting. Measure where they fall along reference lines and transfer those measurements to the cabinet backs. Pre-drill holes at those points in the nailing strips before putting them up.

It's most efficient to start installation with the wall cabinets, since the base cabinets would get in your way if they were already in.

It's also a good idea to put the corner units in first, squaring them up and moving toward the center of the wall where you have more leeway for making adjustments. The same goes for base cabinet installation, too.

TIP: Before starting the wall cabinets, it's helpful to screw a ledger board into the wall along the line representing the bottom of the cabinets. Then set the cabinets on the board to line them up and hold them as you screw them in place.

Installing Wall (Upper) Cabinets

Starting in the corner, set the first unit in place and snug it up to the wall. Use a level to make sure that it's plumb up and down both sides and front. Shim as needed to hold it plumb.

To secure the first cabinet, pre-drill and drive a couple screws (2-1/2" drywall screws are usually fine) through the top and bottom nailing strips in the back of the cabinet.

Set the second cabinet in place, snug against the wall and snug against the side of the first cabinet. Line up the adjoining face-frames of the two cabinets and clamp them together tightly.

Then pre-drill through one frame into the other and secure them with a couple of screws. Shim the second unit as needed and secure that one through the back. Continue that way till all the wall cabinets are in place.

NOTE: If you're installing frameless cabinets, you can clamp the sides together as described above but you can't simply screw them together. The manufacturers will include special hardware to bolt the sides together as well as caps to cover the hardware.

Setting Base (Lower) Cabinets

Starting in the corner, set the first base cabinet and line up its top with the reference line. Shim under the back of the cabinet if necessary to raise it up to the line. Then screw through the nailing strip at the top of the cabinet into the wall studs.

Check the first cabinet to make sure it's level along the front and the sides, and shim underneath as needed.

Set the second cabinet in place and snug it up to the wall and to the first cabinet. Follow the same steps to secure the back to the wall studs.

Line up the back, clamp and secure the adjoining face frames as described above for the wall cabinets. Shim under the second cabinet as needed to line it up with the first unit. Continue in the same manner till all the base units are in.

Installing Filler Pieces

Once you've completed a line of wall or base cabinets, you can deal with any gaps left in the layout by fitting filler pieces.

• Rip-cut the filler piece to the width of the gap with a table saw or a circular saw having a rip fence
• Set the piece in the gap, filing or planning as needed to fit
• Line it up exactly with the adjoining face frames
• Pre-drill and screw through the adjoining frames to secure it

Installing Island Cabinets

Installing island cabinets is a bit different since they're standing in the middle of the kitchen with no wall to back them up.

So the usual technique is to secure 2x4 blocks to the floor and screw into those through the cabinets' toe kicks to secure them.

The hard part is getting those blocks in the right places. Set the units in place, line them up just where you want them, mark the floor along the outside edge of the toe kicks, then place the blocks on the inside of those marks but offset the thickness of the toe kicks (usually 3/8" or 1/2").

Screw the blocks onto the floor, set the cabinets in place over them, shim the cabinets level and plumb, screw through the toekicks into the blocks and secure the frames together wherever two cabinets meet.