The best RV emergency exit window depends on the opening size, wall thickness, and whether you are replacing a window or adding one. The 30-by-22-inch options suit many trailer projects, while the 36-by-22-inch model fits a larger opening and the HECASA model is a 30-by-20-inch alternative. Compare the listed dimensions and installation details before choosing; nominal size does not always equal the required cutout size.
| Window | Best For | Key Detail |
|---|---|---|
| 30-by-22-inch cargo trailer window | Thin-wall DIY installations | Listed for walls under 1.5 inches |
| AlloTemlass 30-by-22-inch | Buyers prioritizing installation details | Designed for 1.57–1.77-inch walls |
| 36-by-22-inch cargo trailer window | Larger replacement openings | 36-inch width |
| PRO FLEX 30-by-22-inch | 1.75-inch walls | Trim kit included per listing |
| HECASA 30-by-20-inch | Shorter openings | Inner and outer dimensions provided |
30-by-22-Inch Cargo Trailer Exit Window
This window is best for DIY cargo trailer or RV projects with thin walls. The listing describes use on walls less than 1.5 inches thick and mentions adding a window to an enclosed trailer or replacing a damaged one. Its listed construction includes tinted tempered glass, an anodized aluminum frame, a mesh screen, a trim ring, and ribbed rubber gaskets.
Choose this option if ventilation and a screen are priorities and your wall thickness matches the listing. It is also presented for use in trailers, motorhomes, vans, trucks, SUVs, garages, and workshops. The listing does not provide a detailed cutout template or exact overall frame dimensions, so confirm measurements with the seller before cutting an opening.
AlloTemlass 30-by-22-Inch Exit Window
Best for buyers who want installation components and specified wall thickness. The listing says this window fits walls from 1.57 to 1.77 inches and includes a pre-cut template, pre-drilled holes, trim set, and spare buckles. Its features include 3.2 mm tinted tempered glass, an aluminum frame, a mesh screen, and a ribbed rubber gasket.
The listing also describes an inside-operated emergency lock lever, UV protection, and a slide mechanism. Choose it if your measured wall falls within the stated range and the supplied installation kit suits your project. Avoid assuming it fits thinner walls: the specified range is narrower than the thin-wall option above.
36-by-22-Inch Cargo Trailer Exit Window
This is the better choice when a 30-inch-wide window is too small for the planned opening. The listing describes a 36-by-22-inch window for adding or replacing a trailer window, with tinted tempered glass, a weather-resistant anodized aluminum frame, a mesh screen, and a trim ring with ribbed rubber gaskets.
It is listed for thin walls under 1.5 inches and for cargo trailers, utility trailers, travel trailers, motorhomes, vans, trucks, and other projects. Measure the opening carefully before purchase: the provided features do not state exact cutout or outside-frame measurements. Its larger width also means it is not a substitute for a smaller window when the existing opening cannot be changed.
PRO FLEX 30-by-22-Inch Exit Window
Best for an installation with a wall thickness of 1.75 inches. PRO FLEX describes this model as a DOT-certified emergency exit window with a trim kit and impact-resistant tempered glass. The listing also mentions multilayer film for insulation and privacy, plus a one-way vent outlet intended to help prevent rain intrusion.
Choose this model if its specified wall thickness and 30-by-22-inch nominal size match your project. The listed features emphasize glass construction and climate control. However, the provided information does not give exact cutout dimensions or describe a complete installation template, so verify those details before modifying a wall.
HECASA 30-by-20-Inch Exit Window
This is best for buyers who need a shorter window than the 30-by-22-inch options. HECASA lists a nominal size of 30 by 20 inches, an inner frame of approximately 29⅞ by 19⅞ inches, and an outside frame of approximately 31¾ by 21¾ inches. The window has a mesh screen and is described for cargo trailers, horse trailers, campers, and teardrop RVs.
The listing’s specific measurements make comparison easier, but they also show why nominal size alone is not enough. Measure the existing frame or planned opening and compare it with the inner and outside dimensions. Choose another size if your required opening is closer to the listed 30-by-22-inch format.
Buying Guide
How should you measure an RV exit window?
Measure the existing window, the wall opening, and the wall thickness separately. Check whether a listing gives nominal size, inner frame size, outside frame size, or cutout dimensions; these measurements are not interchangeable. For a new installation, confirm the manufacturer’s required opening dimensions before cutting.
Which wall thickness should you choose?
Match the window to the measured wall, not just the advertised width and height. The first and third models are listed for walls under 1.5 inches. AlloTemlass specifies 1.57–1.77 inches, while PRO FLEX specifies 1.75 inches. Ask the seller if your wall falls outside the stated range.
What features matter for ventilation and privacy?
A mesh screen allows airflow while helping keep insects and debris out. Tinted glass can provide privacy, while tempered glass is a safety-related construction feature described by several listings. Compare the frame, gasket, screen, and vent details along with the dimensions.
Is a window labeled an emergency exit automatically suitable for every RV?
No. Confirm that the selected window fits the vehicle, opening, wall thickness, and intended use. Product descriptions alone do not establish that a particular installation meets every applicable requirement. Consult your RV manufacturer or a qualified installer when needed.
Frequently Asked Questions
What is the most common size among these options?
Four of the five options are listed as 30 inches wide. Three are 22 inches high, while the HECASA model is 20 inches high; one model is 36 inches wide.
Can I replace a 30-by-22-inch window with a 30-by-20-inch model?
Not without checking the frame and opening dimensions. The HECASA window has different inner and outside measurements, so confirm fit before ordering.
Do these windows include a screen?
Each product listing describes a mesh screen. Verify the included components with the seller if the screen is essential to your installation.
Should I cut a new opening based on the nominal window size?
No. Use the manufacturer’s specified cutout measurements. Nominal dimensions may differ from the frame or required opening size.