5 Best Materials to Build a Murphy Bed (And Which One to Avoid in Coastal Areas Like Puerto Rico)
Thinking about building or buying a Murphy bed? Whether you're designing a small-space solution for your home or a multifunctional guest room, the material you choose matters more than you think—especially if you live near the coast.
As local builders in Puerto Rico, we’ve seen first-hand how climate can make or break your furniture investment. So let’s walk through the five most common Murphy bed materials, what makes each one unique, and which one stands up best in humid, salty environments like ours.

5. Plywood – The Balanced Choice
Best for: Strength + affordability
Plywood is a classic for a reason. Made from layers of wood veneer, it's strong, stable, and budget-friendly. It resists warping better than solid wood and holds screws well, which is crucial for Murphy bed hinges and lifts.
Pros:
Strong and durable
Resists warping
Mid-range cost
Cons:
Edges may need finishing
Surface isn’t as smooth as MDF
Great for most homes, but may still need a protective finish for high humidity.
4. MDF – Smooth but Not Moisture-Friendly
Best for: Painted finishes in dry spaces
MDF (medium-density fiberboard) gives you a perfectly smooth surface—great for paint jobs and sleek finishes. But if you're in Puerto Rico or anywhere humid, beware: MDF swells when exposed to moisture and can quickly warp or lose strength.
Pros:
Smooth surface
Cost-effective
Easy to work with
Cons:
Heavy
Not water-resistant
Weakens over time in humid air
Not recommended for coastal homes unless fully sealed and elevated.
3. Solid Wood – Premium Look, Premium Price
Best for: Rustic or luxury interiors
There’s nothing quite like the warmth of real wood. Hardwoods like oak and maple are stunning, sturdy, and timeless. But in a humid setting, solid wood can expand, contract, or crack without proper sealing.
Pros:
High-end aesthetic
Strong and long-lasting
Natural grain beauty
Cons:
Expensive
Prone to warping in tropical climates
Use sparingly or only in climate-controlled areas.
2. Melamine-Coated Particleboard – Modern and Budget-Friendly
Best for: Sleek, flat-pack Murphy beds
This engineered option is often used in ready-to-assemble furniture. It's cost-effective and comes in a variety of modern finishes—but it doesn’t hold up well under heavy weight or moisture.
Pros:
Smooth modern finish
Affordable
Low maintenance
Cons:
Chips easily
Weak structural integrity
Doesn’t tolerate moisture well
Not suitable for Murphy beds near the beach or without climate control.
1. PVC – The Winner for Coastal Homes Like Puerto Rico
Best for: Durability, moisture-resistance, and clean aesthetics
PVC (polyvinyl chloride) is our top pick for Murphy beds built for the tropics. Unlike wood or MDF, PVC boards are completely water-resistant, mold-proof, and unaffected by salty air. That makes them the perfect match for oceanfront condos, beach houses, or any space in Puerto Rico.
We recently completed a stunning PVC Murphy bed build for a client who wanted durability without sacrificing design. [Insert image here]
Pros:
100% moisture and mold resistant
Doesn’t warp or crack
Lightweight and low maintenance
Cons:
Slightly more expensive than MDF
May require reinforcement for heavy-duty use
The clear winner for Murphy beds in coastal or humid environments.

This custom-built Murphy bed and workstation combo was crafted entirely from PVC to meet the unique demands of a coastfront condo in Puerto Rico. Designed for a client who needed a functional workspace by day and a cozy guest bed by night, this piece delivers both style and durability. The PVC construction ensures it’s resistant to moisture, warping, and mold, making it the perfect choice for tropical climates. With clean lines and a modern finish, it seamlessly blends into the space while standing up to the island’s salty air and humidity.
What’s the Worst Material for Coastal Murphy Beds?
That would be MDF or particleboard. Both absorb moisture easily and break down over time, leading to sagging panels, cracked finishes, and hardware failure.
If you live anywhere near the ocean—or even if you just love leaving your windows open—skip MDF for anything structural.
Our Recommendation (Especially for Puerto Rico Homes)
At Northborn Woodworks, we specialize in crafting Murphy beds that are made to last in our unique Caribbean climate. Our PVC builds offer a clean look, customizable design, and the durability you need for coastal living.
Want a Murphy bed that works just as hard as you do?
📞 Contact us today to talk about your vision, or scroll through our gallery to see what’s possible.