This project was built and designed by Mike Montgomery from Modern Builds. It features two stylish outdoor loungers, each showcasing a different slat orientation—one vertical, one horizontal—to suit a variety of backyard or poolside spaces.
Designed for the Reset Hotel in 29 Palms, California, these loungers combine simplicity with durability. Built from thermally treated ash wood and assembled with clean joinery, they’re made to handle outdoor conditions while offering long-term comfort.
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A Dual Design Approach
Mike set out to create two variations of the same outdoor concept, each with a unique visual layout. The first lounger uses vertical slats for a more classic, symmetrical look. The second switches to horizontal slats, giving it a sleeker and more modern feel.
By building both designs, Mike offers viewers a chance to see how simple design changes can lead to distinct outcomes. Whether you’re going for timeless or trendy, this project covers both styles in a single build.
Using Thermally Treated Ash for Longevity
The material of choice is thermally treated ash, which performs exceptionally well in outdoor environments. This wood is treated to resist moisture and temperature fluctuations, making it ideal for long-term use without the need for heavy finishes or sealants.
Boards are cut to length before assembly, with the focus on keeping all surfaces smooth and true. Mike emphasizes the value of using stable lumber to minimize warping and to keep the final product looking clean and professional.
Constructing the Vertical Slat Lounger
For the first design, the slats run vertically from top to bottom across the platform. The layout begins with spacing and planning—each board is laid out to visualize the final appearance and determine how many slats will be needed.
The platform rests on solid 4×4 posts, cut and arranged to support the slats evenly. Stainless steel screws are used to fasten the boards securely, offering strength and corrosion resistance for outdoor use.
To keep everything uniform, Mike uses a drilling jig for pilot holes. This detail improves accuracy and gives the final product a cleaner, more consistent appearance.
Building the Frame for Stability
Additional framing is added between the slats to reinforce the platform. These pieces support the weight of anyone using the lounger and prevent flexing over time.
Spacing is key during this phase. Consistent gaps between slats offer better air circulation and drying after rain, while still maintaining structural integrity.
Creating the Horizontal Slat Design
The second lounger begins with the same base concept but swaps vertical boards for horizontal slats. This change creates a different visual rhythm and slightly alters the build process.
Each slat is cut to a set length and attached with a small overhang, creating a floating effect along the edge of the lounger. This subtle design twist gives the piece a more modern, elevated look.
Having already worked through the process on the first lounger, Mike is able to move more quickly through this second version. His layout is faster, cuts more precise, and lessons learned from the vertical version make this one more efficient.
Sanding and Surface Prep
Before the loungers are considered finished, every surface is thoroughly sanded to remove splinters and smooth the edges. This not only improves comfort for bare skin but also helps with the visual finish.
A random orbital sander and hand sanding are used in tandem to get into all corners and clean up small imperfections. Mike takes his time here, knowing it’s the details that really make outdoor furniture feel complete.
Functional Style That Lasts
Both loungers are designed to handle constant exposure to sun and weather without breaking down. Thanks to the treated ash, stainless fasteners, and smart spacing, these builds will stay solid and attractive for years.
Each design can be modified to fit different outdoor setups, including smaller patios or larger pool decks. Cushions can be added for extra comfort, but the slatted surface alone is perfectly usable as-is.
A Build That Encourages Variation
Mike invites his audience to take these core designs and make them their own. By adjusting slat spacing, changing angles, or using different woods, builders can personalize these loungers for different aesthetics or climates.
What’s especially useful is seeing two contrasting styles built back-to-back. It gives newer woodworkers a great side-by-side comparison of design decisions and how they impact both look and function.
Relax in Something You Built Yourself
There’s something satisfying about laying back on a piece of furniture you built with your own hands. These DIY loungers combine approachable techniques with thoughtful design and result in something you’ll use again and again.
Whether you go with vertical or horizontal slats—or try both like Mike did—this project is a great way to expand your skills and add something useful to your outdoor space.
Please support Mike by visiting his website: https://www.modernbuilds.com/.