Custom Millwork & Wainscoting is engineered to require a minimum amount of site work during installation. We have designed our wainscot panel system with the DIY “Do-It-Yourselfer” in mind and to be user friendly with regard to assembly and installation. That being said, installing your wainscot panels will require common carpentry tools including a saw, hammer, and fasteners and also minor cutting of some of the panels. Our panels can be up to 8 feet in length to make installation even easier with less seams.

The wainscot is shipped and ready for installation. All parts come labeled on the rear of the panel to match the detailed print. Following the assembly of the wainscot, you must prepare it for finish painting by filling all nail holes and coating biscuit joints and outside corners.

Installation Steps

The pieces should be installed in the order given which is a clockwise direction around the room. Begin at the start point as shown on the layout sheet.

Floor Clearance

Using a level, find the low spot of the room and make a note of it. At the high point snap chalk lines at the height of the panel. You can also snap chalk lines at the height and check to see how level the floor is.

Trimming to Fit

The start and ending piece will need to be trimmed to fit 1/2″. This is for walls out of plumb. We give you an extra 1/2″ on each end. On angled inside corners other than 90 degrees and outside corners we allow 1″ so you can install the corner with the method of your choice.


The wainscoting panel will be shipped without a cut out for the windows. During installation, the window will need to be cut out leaving the appropriate reveal at the windows or cutting around any trim as necessary to achieve the desired look. See our window detail for more information.

Butt Joints

By running one piece past the end of the wall and putting the other piece to it you can create a butt joint. Just scribe and cut. With this method at the end of the MDF is exposed. See our butt joint detail for more information.

Normal Inside Corners

90 degree inside corners are butt jointed. The left piece runs into the corner and the right piece overlaps it.

Angled Inside Corners

A butt joint is a common method. Cut the first piece to run all the way into the corner. Trim the next piece with the miter on the left side to fit snugly against the first piece. Using this method try to trim your pieces so the visible and rail on each piece is about the same width.

Biscuit Joints

After the wall is trimmed to fit the biscuit joints must be glued together. Walls longer than eight feet will have biscuit joints already cut in to align with each other. When finished the styles are 3″.

Electric Outlets

We recommend the way for dealing with the outlets is to position them horizontally in the base rail. Outlets may also be in the raised area of the panel.

Air Vents

Cannot be moved. When the order gets shipped you will find a profile filler piece. This makes it easier to fill the profile cut. Simply measure the height of the grill, cut the filler mold, glue the desired area, fill, sand, then cut the hole to accommodate duct work. See our HVAC detail for more information.


Butt joints and corners can be finished with body putty called icing, or joint compound drywall, or wood filler. Any of these are your choice. All MDF products are for interior use only.

Shipment Contents

Every panel is custom made per information supplied on our order form. Each wall section is clearly labeled with installation guide. These parts are then packed on a skid for delivery.