When planning to install shiplap, accurate measurements are crucial to ensure a seamless and professional finish. This guide provides step-by-step instructions on how to measure your space effectively, taking into account important factors such as room dimensions, surface conditions, and material requirements.

Whether you’re transforming an entire room or creating a feature wall, understanding how to measure properly will help you purchase the right amount of shiplap and avoid unnecessary waste. By following these guidelines on how to measure for shiplap, you’ll set the foundation for a successful DIY project and achieve the desired aesthetic in your space.
What is Shiplap?
Shiplap is a type of wooden board commonly used in interior and exterior design for its aesthetic and functional appeal. Characterized by its overlapping rabbet joints, shiplap creates a distinct visual effect with horizontal lines that add texture and interest to walls or ceilings. Traditionally used in the construction of barns, outbuildings, and ships for its ability to create a tight, weatherproof seal, shiplap has gained popularity in home interiors for its rustic charm and versatility.
Available in a variety of materials, from natural wood to pre-painted MDF, shiplap can be installed horizontally, vertically, or in creative patterns, making it a favorite choice for adding personality and dimension to any space.
Why is Proper Measurement Important for Shiplap?
Installing shiplap requires precision and careful planning. Unlike other wall coverings, such as wallpaper or paint, shiplap comes in fixed sizes and must fit together seamlessly to create a polished look. Improper measurements can result in uneven gaps, overlapping boards, or insufficient coverage, which can be both visually unappealing and costly to fix.
Moreover, shiplap installation often involves cutting and joining boards at various angles to accommodate corners, windows, outlets, and other obstacles. Accurate measurements will ensure that you have the right amount of material and minimize waste during this process.
Additionally, understanding how to measure for shiplap will also help you determine the type and quantity of additional materials needed for installation, such as nails, adhesives, or trim pieces.
Needed Materials
Before you begin measuring for shiplap, make sure you have the following materials on hand:
Tape Measure
A sturdy tape measure with both imperial and metric measurements will be needed to accurately record dimensions.
Pencil and Paper
Having a pencil and paper on hand will help you keep track of your measurements and make notes as needed.
Level
A level is essential to ensure that your shiplap installation is straight and even.
Calculator
If you’re not comfortable with converting between imperial and metric measurements, a calculator can come in handy during the measuring process.

8 Steps on How to Measure for Shiplap
Step 1: Measure the Walls
Begin by measuring the total length and height of the wall where you plan to install the shiplap. Using your tape measure, start from one edge of the wall and work your way to the opposite edge, noting the dimensions. It’s helpful to measure at several points along the wall to account for any irregularities or imperfections, which can help ensure an accurate calculation of the material needed.
Record these measurements on your paper, making sure to circle or highlight the final dimensions that will guide your shiplap purchase. Remember that precision in this first step will set the stage for a smooth installation process.
Step 2: Consider Obstacles
As you measure the walls, it’s crucial to take into account any obstacles that may affect the installation of your shiplap. Obstacles can include windows, doors, electrical outlets, and heating vents, as well as architectural features like beams or columns. Start by identifying and measuring these elements individually, noting their dimensions and positions on your sketch.
This approach ensures that you calculate the correct amount of shiplap needed and allows you to plan for any necessary cuts and modifications. By carefully considering these obstacles ahead of time, you’ll be better prepared to handle adjustments during the installation process, leading to a more seamless and professional finish.
Step 3: Calculate the Shiplap Needed
With all your measurements recorded, it’s time to calculate the amount of shiplap needed for your project. Begin by multiplying the total height of the wall by its length to determine the total square footage. Then, subtract the area of any obstacles you noted in step 2 from this number. The resulting figure is the net surface area that will require shiplap coverage.
Next, consider how you plan to install the shiplap and choose an appropriate board orientation – horizontal or vertical – based on your preferences and room dimensions. Carefully measure one board in its intended position and multiply its width by its length to determine its area. Divide the net surface area by the board’s area, and you’ll have the total number of boards needed for your project.
It’s always a good idea to add a few extra boards to account for any mistakes or miscalculations during installation.
Step 4: Consider Shiplap Length
Shiplap typically comes in standard lengths, which can range from 6 feet to 12 feet, depending on the manufacturer. When calculating how many boards you’ll need, consider the length options available and choose one that will minimize waste.

For example, if your wall measures 14 feet long and shiplap is available in both 8 and 12-foot lengths, opt for the 12-foot boards to reduce unnecessary cuts or joints.
Step 5: Determine Trim Amounts
Trim pieces are essential in shiplap installation as they help create a professional and polished finish. Measure the total length of your walls again, this time including any obstacles noted in step 2. This measurement will determine the amount of trim needed, such as corner pieces or baseboards, to cover any exposed edges and create a clean transition between walls.
You may also need to factor in additional trim pieces for around windows, doors, or other obstacles. As with shiplap boards, it’s always a good idea to purchase slightly more trim than you think you’ll need.
Step 6: Account for Cuts
Unless your walls are perfectly rectangular, it’s likely that you’ll need to make some cuts and adjustments to your shiplap during installation. Remember to account for these cuts in your total number of boards needed and add a few extra pieces as a buffer.
If possible, plan ahead and purchase longer boards that can be cut down rather than shorter ones that require joining multiple pieces together. This approach will not only save time but also create a cleaner and more polished finish.
Step 7: Factor in Waste
Even with careful planning, there is always the potential for material waste during shiplap installation. To account for this, add an extra 10% to your total number of boards and trim pieces needed. This buffer will come in handy if any mistakes are made or if some boards need to be discarded due to imperfections or damage.

It’s always better to have a little extra material on hand rather than running out and having to purchase more, potentially causing delays in your project.
Step 8: Consult with a Professional
If you’re unsure about how to measure for shiplap or want expert advice on estimating materials, don’t hesitate to consult with a professional. They can offer valuable insight and recommendations based on their experience and help ensure an efficient and successful installation.
Following these steps will help you accurately measure for shiplap and ensure a smooth installation process. Remember to take your time, double-check your measurements, and plan ahead to minimize waste and potential obstacles. With proper planning and preparation, you can achieve a beautiful and professional shiplap installation in your home.
Frequently Asked Questions
Q: Can I Install Shiplap on My Own?
A: Yes, with the right tools and materials, you can successfully install shiplap yourself. However, it’s always a good idea to consult with a professional if you’re unsure about any aspect of the process.
Q: What Tools Are Needed for Shiplap Installation?
A: You’ll need measuring tape, level, saw (either circular or miter), nail gun or hammer, nails, and shims. Other tools that may come in handy include a stud finder, chalk line, and caulk gun.
Q: Can I Install Shiplap on Any Surface?
A: While shiplap can be installed on various surfaces such as drywall, plaster, or even brick, it’s essential to ensure the surface is clean and smooth before installation. If there are any imperfections or unevenness, it may affect the appearance and stability of the shiplap. It’s also important to properly prepare the surface by filling in any holes or cracks and sanding down rough areas.
Q: How Do I Choose the Right Shiplap Material?
A: Shiplap is available in various materials such as wood, MDF, vinyl, and even painted options. When choosing your shiplap material, consider factors like durability, cost, maintenance, and aesthetic preferences. Wood shiplap is a popular choice for its natural warmth and charm but may require more upkeep compared to vinyl or MDF options.

Conclusion
Installing shiplap can be a rewarding DIY project that adds charm and character to any space. By following the outlined steps, accurately measuring your space, and carefully planning your materials, you can successfully achieve a professional and polished result. Remember, preparation and precision are key factors in minimizing waste and ensuring your project runs smoothly.
If you are ever in doubt, seeking advice from a professional can provide valuable insights to guide on how to measure for shiplap you through the process. With attention to detail and thoughtful execution, your shiplap installation can transform your home, bringing a timeless and elegant aesthetic to your living space.