Choosing the right side door for your enclosed trailer is critical for security, ease of access, and durability. We researched manufacturer specifications, industry safety standards, and aggregated owner feedback to compare the top options. Our evaluation focuses on real-world performance, build quality, and value. Here are our findings.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Pro-Tect Side Door Best Overall Aluminum frame, 60×72 inches, 3-point locking system |
9.0 | 🛒 Check Price |
 |
Dexter RV Side Entry Door Runner Up Steel frame, 54×72 inches, keyed entry lock |
8.7 | 🛒 Check Price |
 |
Mossy Oak Side Door Best Value Aluminum skin over wood core, 60×72 inches, single-point lock |
8.4 | 🛒 Check Price |
|
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TrailFX Side Access Door Premium Pick Aluminum frame with composite panel, 48×60 inches, multi-point lock |
8.1 | 🛒 Check Price |
 |
Command Electronics Side Door Security Focus Steel frame, 60×72 inches, electronic keypad lock |
7.8 | 🛒 Check Price |
 |
Better Built Side Door Budget Pick Steel frame, 54×72 inches, single-point lock |
7.3 | 🛒 Check Price |
 |
Lund Side Door Lightweight Option Aluminum frame, 60×72 inches, single-point lock |
7.6 | 🛒 Check Price |
1. Pro-Tect Side Door: Best Overall
The Pro-Tect Side Door stands out for its all-aluminum frame and 3-point locking system, which we found to offer superior durability and security based on spec sheets and owner reports. The pre-hung design reduces installation time, and the door operates smoothly even in harsh conditions. In our evaluation, this door consistently earned high marks for weather resistance and structural integrity.
However, this door comes at a higher cost, which may be a barrier for budget-conscious buyers. If you do not require the extra security of a 3-point lock or if your trailer is used for light-duty hauling, a simpler door might be more cost-effective. We recommend this for owners who prioritize longevity and security above all.
- Heavy-duty aluminum construction resists corrosion and dents
- 3-point locking system provides enhanced security and weather seal
- Pre-hung design simplifies installation with included hardware
Pros: Excellent build quality and finish; Smooth operation with robust hinges
Cons: Premium price point may not suit all budgets
2. Dexter RV Side Entry Door: Runner Up
Dexter’s side door offers a robust steel frame with a galvanized finish that resists rust, as confirmed by manufacturer data. The keyed entry lock with deadbolt provides solid security. Based on owner feedback, installation is straightforward, and the door fits standard openings well. We found it to be a reliable choice for most enclosed trailers.
The main drawback is weight: the steel construction adds pounds, which may affect trailer balance and handling if not accounted for. If you are towing a lightweight trailer or need to minimize weight, consider an aluminum door. Otherwise, this is a durable and secure option.
- Steel frame with galvanized coating for rust resistance
- Keyed entry lock with deadbolt for security
- Easy to install with pre-drilled mounting holes
Pros: Strong and secure construction; Good value for the features offered
Cons: Heavier than aluminum alternatives
3. Mossy Oak Side Door: Best Value
The Mossy Oak Side Door offers a balance of affordability and function. Its aluminum skin over a wood core provides decent insulation and strength for the price. According to owner reviews, installation is easy and the door fits well. We found it to be a solid entry-level option for budget-focused buyers.
The wood core is a potential weak point if the door seal is compromised, leading to moisture damage over time. If you live in a wet climate or need a door that can withstand frequent pressure washing, a fully aluminum or steel door is a better investment. This door is best for dry environments and occasional use.
- Affordable price without compromising basic durability
- Lightweight design reduces strain on trailer frame
- Single-point lock with handle is simple to operate
Pros: Very cost-effective; Lightweight and easy to install
Cons: Wood core may swell if seal fails
4. TrailFX Side Access Door: Premium Pick
TrailFX uses a composite panel that eliminates rust and dent concerns, backed by manufacturer claims of high impact resistance. The multi-point lock adds security. We noted that the door has a clean, flush finish that improves aerodynamics. Owner feedback highlights its durability in harsh weather.
The limited size selection (only 48×60 inches) may not fit standard openings, making it less versatile. Also, the composite material can be more expensive to repair if damaged. This door is ideal for those with compatible openings who want a maintenance-free exterior.
- Composite panel resists dents and never rusts
- Multi-point locking system for enhanced security
- Sleek, modern appearance with flush fit
Pros: Corrosion-proof composite material; Excellent security features
Cons: Limited size options may not fit all openings
5. Command Electronics Side Door: Security Focus
Command Electronics offers a unique electronic keypad lock that eliminates the need for keys. The steel frame is powder-coated for corrosion resistance. Based on owner reports, the keypad is easy to program and the door operates reliably. We found it to be a good choice for those who frequently access their trailer.
The electronic components are susceptible to cold and moisture, which can cause malfunctions. If you tow in extreme climates, a mechanical lock may be more reliable. Also, battery replacement is an ongoing cost. This door suits tech-savvy users in moderate climates.
- Electronic keypad lock for keyless entry
- Steel frame with powder coat finish
- Includes interior release handle for safety
Pros: Convenient keyless entry; Good security with code access
Cons: Electronics may fail in extreme temperatures
6. Better Built Side Door: Budget Pick
The Better Built Side Door is the most economical option we evaluated. It provides basic access with a simple latch and steel frame. Owner feedback indicates it works fine for light-duty use in mild weather. We found it to be a no-frills solution for those on a tight budget.
However, the single-point lock offers limited security, and the weather seal is basic, leading to potential drafts and water intrusion. If you store valuable items or tow in wet conditions, invest in a better-sealed door. This door is best for temporary or low-security applications.
- Lowest price point for basic functionality
- Lightweight steel construction
- Simple latch mechanism
Pros: Very affordable; Easy to install
Cons: Minimal security and weather sealing
7. Lund Side Door: Lightweight Option
Lund’s all-aluminum door is designed for weight-conscious users. It offers corrosion resistance and easy operation. Based on spec sheets, it is one of the lightest options available. Owner reviews note that it is easy to install and works well on smaller trailers.
The aluminum frame is more prone to denting from impacts than steel. If your trailer is used for heavy cargo that could shift, a steel door may be safer. This door is ideal for those towing with lighter vehicles or where weight is a primary concern.
- All-aluminum construction for maximum weight savings
- Corrosion-resistant and low maintenance
- Smooth operating hinges
Pros: Very lightweight; Good for weight-sensitive trailers
Cons: Less durable than steel in high-impact scenarios
Frequently Asked Questions
What size side door do I need for my enclosed trailer?
Measure the rough opening of your trailer: width and height. Standard sizes include 48×60, 54×72, and 60×72 inches. Check manufacturer specifications for exact dimensions. It is recommended to leave a small gap for adjustment during installation.
Are aluminum or steel side doors better?
Aluminum doors are lighter and corrosion-resistant, ideal for weight-sensitive trailers and humid climates. Steel doors are stronger and more impact-resistant but heavier and prone to rust if not coated. Choose based on your priorities: weight vs. durability.
How do I install a side door on an enclosed trailer?
Installation typically involves cutting the opening to size, framing it with lumber, securing the door frame with screws, and sealing the edges with weatherproof caulk. Pre-hung doors simplify the process. Always follow the manufacturer’s instructions and use appropriate safety gear.
What security features should I look for in a side door?
Look for multi-point locking systems, deadbolts, or electronic keypad locks. Reinforced hinges and tamper-resistant screws add security. For high-value cargo, choose a door with a robust lock and consider adding a separate padlock hasp.
Can I replace an existing side door with a different brand?
Yes, as long as the new door matches the rough opening dimensions. You may need to modify the frame or trim to fit. Check the door’s weight capacity and ensure your trailer’s structure can support it. Professional installation is recommended for non-standard sizes.
Our Verdict
After researching specifications, safety standards, and owner feedback, the Pro-Tect Side Door is our top pick for its superior aluminum build and 3-point locking system. For a more affordable yet reliable option, the Dexter RV Side Entry Door offers excellent security and durability. Choose based on your budget and specific needs.
