Installing Shiplap on Walls: A Step-by-Step Guide
Installing shiplap on walls starts with locating the studs, planning the board layout, and fastening level courses from the bottom up. Allow about 8 to 12 hours for one 12-foot by 8-foot (3.66 m by 2.44 m) wall, excluding overnight drying time.
Before installing a shiplap wall
Measure the width and height at the left, center, and right of the wall. Multiply the greatest width by the greatest height, then add 10 percent for cuts and damaged pieces. Mark studs before covering them. They are commonly spaced 16 inches (40.6 cm) or 24 inches (61 cm) on center, but confirm every location with a stud finder.
Choose the board direction before ordering material. Horizontal boards make a wall feel wider. Upright boards draw the eye toward the ceiling and require horizontal blocking when studs cannot support every edge. See the separate guide to vertical shiplap for that layout. You can also compare other types of wall panels if shiplap does not suit the room.
Calculate the first and last course before cutting. A board with a 5.25-inch (13.3 cm) exposed face and a 0.125-inch (0.32 cm) reveal covers 5.375 inches (13.7 cm) per course. If the final board would be narrower than 2 inches (5.1 cm), rip material from both the first and last boards for a balanced result. Review finished shiplap walls before choosing the reveal, color, and edge trim.
Materials for installing shiplap
Compare MDF, PVC, solid wood, and peel and stick boards by moisture exposure, finish, movement, and removal needs. These planning ranges cover materials for a 12-foot by 8-foot wall, not professional labor.
| Material | Best use | Installation note | Rough material allowance |
|---|---|---|---|
| MDF | Dry interior rooms with a painted finish | Smooth and stable, but cut edges must be sealed | about $300 to $550 |
| PVC | Bathrooms, laundry rooms, and damp areas | Resists moisture and needs room for expansion | about $450 to $800 |
| Solid wood | Stained walls and visible natural grain | Acclimate it and expect seasonal movement | about $400 to $900 |
| Peel and stick | Rentals and fast, lightweight updates | Requires a clean, smooth wall and careful removal | about $250 to $500 |
MDF gives you consistent painted lines in a dry room. PVC is more forgiving where splashes or humidity are expected. Solid wood can be stained, but boards may cup or open at the joints as conditions change. Read about pine shiplap if you want real grain. Peel and stick versions reduce tools and wall damage, making them practical for renters, but textured paint can weaken the bond.
Installing shiplap in 8 steps
Gather a tape measure, pencil, stud finder, 48-inch (121.9 cm) level, saw, nailer, spacers, caulk gun, utility knife, safety glasses, hearing protection, and a voltage detector. Add a jigsaw or oscillating tool for outlet cuts. Plan on 8 to 12 working hours for an average feature wall.
- Prepare the wall. Remove baseboards or edge trim that prevent the boards from sitting flat. Repair large humps and loose drywall. Move the material into the room and follow its acclimation instructions before cutting it.
- Mark studs and services. Find every stud and transfer the marks to the ceiling or nearby wall. Scan for pipes and wires before driving nails. Shut off power at the breaker before removing outlet covers.
- Draw a reference line. Floors are rarely perfectly level. Mark a level line one board height above the lowest starting point. Leave a 0.125-inch (0.32 cm) perimeter gap where the boards meet the floor and side walls.
- Fit the first course. Cut the first board to length, place it against the reference line, and check it with the long level. Fasten into studs with nails long enough to pass through the board and drywall. A typical range is 1.5 to 2 inches (3.8 to 5.1 cm).
- Add adhesive when appropriate. Adhesive can reduce movement on uneven walls, but it also makes later removal harder. Use the board manufacturer's approved product. For molding added around the installation, check which adhesive for wall molding before combining materials.
- Build the remaining courses. Place 0.125-inch (0.32 cm) spacers between boards unless the profile creates its own reveal. Recheck level every three or four courses. Small errors grow more visible as you approach the ceiling.
- Stagger seams and cut openings. Land every unsupported end on a stud or blocking. Offset nearby end joints by at least 24 inches (61 cm). Measure outlet openings from two fixed edges, cut them before installation, and keep the electrical box accessible.
- Fit the top and finish. Rip the last board to width while preserving the ceiling gap. Replace outlet covers with approved box extenders when needed. Fill nail holes, seal exposed MDF edges, caulk controlled perimeter joints, then prime and paint.
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A home office wall measuring 144 by 96 inches (365.8 by 243.8 cm) covers 96 square feet (8.9 square meters). With a 5.25-inch (13.3 cm) visible board face and a 0.125-inch (0.32 cm) reveal, the wall needs 18 horizontal courses. Those courses use 216 linear feet of boards. Adding 10 percent waste brings the order to about 238 linear feet. Four-sided edge trim measures 40 linear feet, or 44 linear feet after adding 10 percent. A primed MDF installation with trim, fasteners, adhesive, filler, and paint may cost about $350 to $650 before labor.
Common shiplap installation mistakes
- Following the floor instead of a level line. An uneven first course makes every later course slope. Establish the reference line before fastening anything.
- Putting unsupported seams between studs. Loose ends can move and crack the finish. Place each joint on framing or add secure blocking behind it.
- Skipping expansion space. Boards can press against adjacent surfaces as temperature or humidity changes. Maintain the specified perimeter gaps and avoid filling movement joints with rigid filler.
- Burying electrical boxes. Outlet and switch boxes must remain accessible and properly aligned with the new surface. Turn off power and use approved extenders when the finished wall projects beyond the box.
Finish details that make the wall look built in
Use square edge trim for a clean modern border or a simple cap where shiplap stops on an open wall. Seal cut MDF before painting because exposed fibers absorb finish differently. Caulk narrow painted joints that are intended to stay closed, but do not seal required expansion gaps. Satin or eggshell paint is easier to wipe than a dead-flat finish.
If the room also includes a chair rail, picture frame molding, or board and batten, settle the shiplap depth before adding adjacent trim. Follow the correct install order for wall molding so edges meet cleanly. Trim Wall Haus pre-cut, primed MDF kits ship in 2 to 4 business days with free shipping to the US, Canada, UK, and EU. Standard orders have a 14-day return period, while custom orders are excluded.
Common questions
Do you start shiplap at the top or bottom of a wall?
Start at the bottom when you can establish a level reference line. Each course can then rest on spacers above the one below. Leave a 0.125-inch (0.32 cm) perimeter gap. You can start at the top when the ceiling line is visually dominant, but every board must be supported carefully while you fasten it.
Can you install shiplap directly over drywall?
Yes. Drywall provides a flat backing, but nails should reach the wall studs rather than relying on drywall alone. Mark every stud before covering the surface. Repair large bulges, remove loose material, and use an approved adhesive only when needed. Adhesive creates a stronger bond but can damage the drywall during future removal.
Should shiplap be nailed or glued?
Nails into studs are the primary fastener for most wood and MDF shiplap installations. Adhesive can help on uneven walls or reduce movement, but it makes removal more destructive. Many installations use both. Follow the board manufacturer's instructions, confirm the adhesive is compatible with the material, and keep fasteners clear of hidden wires and pipes.
How do you install shiplap around electrical outlets?
Turn off power at the breaker and remove the cover plate. Measure the box location from two fixed board edges, transfer the dimensions, and cut the opening with a jigsaw or oscillating tool. The electrical box must remain accessible. If the new surface extends past the box face, install an approved box extender before replacing the device and cover.
Do you need a gap between shiplap boards?
Use the reveal specified by the board profile or create a consistent gap with spacers. A 0.125-inch (0.32 cm) reveal is common for square-edged boards. You also need perimeter clearance for material movement. Do not assume every board needs the same gap, since some tongue-and-groove profiles create their own spacing when fully seated.
Is vertical or horizontal shiplap easier to install?
Horizontal shiplap is usually simpler because each course can cross several studs, giving you frequent fastening points. Vertical boards may need horizontal blocking or furring strips behind the wall. Vertical installation also demands careful side-to-side spacing because small alignment errors remain visible from floor to ceiling. Choose the direction before planning framing and material quantities.
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