Security Boss SB4 Pet Door for Screen Enclosures

$134.99 $168.74

Security Boss SB4 Pet Door for Screen Enclosures and Porches

Fits Lanais, Porches, Screen Doors, Storm Door, Pool Enclosure

The SB4 by Security Boss is designed for use in a multitude of application environments that require pet access. The rugged frame with is adjustable and can be ordered to fit two different thickness ranges. This allows for a greater variety of install locations. Typical uses include screened-in porches, glass and screen Lanais, framed screen doors, and storm doors. You can choose between a model with or without a blocking panel as well as two adjustment ranges to fit nearly any application. All Security Boss products are built to order in the USA.


The SB4 features some noticeable differences from the popular sliding door pet screen door. The SB4 frame has the same rugged frame components and construction detail as used in the flagship MaxSeal Models. The swing door utilizes a brass bushing/steel pivot pin assembly for long wear and smooth action. The bottom portion of the swing door also has embedded rare earth magnets that allow for positive closure. Brush weather-stripping lines the opening to keep out bugs. The center screen section of the swing door is made with Pet Super Screen that is pet scratch resistant. a 1/8" thick blocking panel is an optional feature if you want to block off access to the screen pet door. All components on the SB4 are designed to be maintained forever and can be easily accessed and serviced if needed.

Thickness Adjustment: Narrow adjustment accommodates screens 3/4" to 1 1/8" thick, Regular adjustment accommodates doors 1 1/4" to 2" thick.


  • High-grade aluminum construction
  • 5 sizes and 3 color options available
  • Blocking panel is optional and closes access to the door
  • 2 Thickness adjustment ranges, accommodating doors 3/4" to 2"
  • 6-year limited manufacturer warranty, includes flaps
  • Made in the USA


Custom sizing available - please contact us for more info

Size Flap Size  Rough Cut Outside Frame Dimensions (includes mounting flange) Shoulder Height Pet Width
Medium 9" w x 12" h 11" w x 13 11/16" h 12 3/" w x 15 1/16" h Up tp 8"
Up to 11"
Large 11" w x 16" h 13" w x 17 11/16" h 14 3/8" w x 19 1/16" h Up to 15"
Up to 10"
Tall 11" w x 20" h 13" w x 21 11/16" h 14 3/8" w x 23 1/16" h Up to 19"
Up to 10"
Wide Tall 15" w x 20" h 17" w x 21 11/16" h
18 3/8" w x 23 1/16" h Up to 19"
Up to 14"
Mammoth 15" w x 24" h 17" w x 25 11/16" h 18 3/8" w x 27 1/16" h Up to 23" Up to 14"

6-Year Manufacturer Warranty

Security Boss Pet Door Models, parts and components are guaranteed to be free of defects in material and workmanship under normal use and service for a period of six (6) years from the date of purchase, under the ownership of the original purchaser. Security Boss agrees to replace or repair at their expense if found to be defective in workmanship or material per the schedule Manufacturer's liability on any claim shall not exceed the cost of the product.  See complete warranty details here.

Video Sizing Instructions

Click link below to download the installation instructions:

Screen Door Install Instructions


Security Boss Doors ship from Wisconsin via FedEx Ground

  • Items normally ship in 1-3 business days from date of order, however custom or larger orders can take longer
  • Use the map below to estimate shipping transit time to your location

     Security Boss Pet Doors transit and shipping map

    Fast Shipping

    We do our best to ship FAST and make it easy for you.  At the top of this page, we have noted how long it normally takes to process and ship your order.  You can then use the map above to estimate delivery times.  We will send you an email confirmation with the tracking number as soon as your order ships

    Please see our Shipping Policy for full details.


    4-Sided Exterior Professional Doors are all made to the customer's specifications, therefore they are non-returnable, non-refundable

    Please see our Return Policy for full details.

    Customer Reviews

    Based on 3 reviews
    Daniel Porsch (Bradenton, US)
    Didn't receive it yet

    Didn't receive the door yet, can you tell us when we will

    Hi Daniel, the tracking shows that your package is scheduled for delivery tomorrow. I just resent you the tracking info so you can view as well. Thanks!

    DeAnn Bonilla (Riverview, US)
    Customer Service is top notch!

    Amazing quality.. amazing customer service. We ordered two doors because we were unsure of the size. Needed some help with returning the unused one and Weston was amazing ! Their products are far superior than the competitors. Flawless for that matter. Both my pups fit through the doggy door without any issues. Really appreciate all their support with my return and their exceptional product. Highly recommend! Customers for life ! Thank you thank you thank you!!

    Sheila Andrews (Fort McCoy, US)
    Perfect for cats!!

    I recently had my lanai screened in and wanted a pet door suitable for cats. In my experience, cats prefer to be able to see through the door rather than a solid, rubber flap. This door is perfect! They already knew how to go through a window type pet door to get out to the lanai, so the learning curve for this one was small. It is very sturdy, attractive and closes well. I also like the very solid blocking panel that allows me to keep them in safely if desired. The screen company who installed it were also very impressed.