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Security Boss dog doors for doors, walls, glass and sliding patio doors. Shop MaxSeal and MaxSeal PRO doors, lockable patio inserts including Elite and Giant Breed models, in-glass and screen doors, wall-mount and insulated SB72 doors, and guillotine kennel doors. Every door is hand-built to order in the USA.

Find replacement flaps, security panels and parts in dog door parts, or shop by install type: doors, walls or sliding doors. Need a size that isn't listed? See custom made-to-measure dog doors. Planning the install? See dog door installation cost. Questions about fit or setup? Call or text a pro at 737-215-3211.

Which Security Boss door is right for you? Compare MaxSeal PRO, MaxSeal, Standard and SB72

Step 1: Where will the door go?

Install spot Security Boss options
Exterior door (1 1/4" to 2" thick) MaxSeal PRO for Doors, Standard Door Mount, SB72 Bite Resistant
Exterior wall MaxSeal PRO for Walls, Standard Wall Mount (walls 2" to 10"), SB72W Insulated Wall Mount
Glass panel (cut or replaced by a glass shop) MaxSeal In-Glass, Standard In-Glass
Sliding glass door, no cutting MaxSeal Patio Insert, Standard Patio Insert, Giant Breed Patio, Elite Selective (cats)
Sliding window, no cutting Lockable Window Insert
Screen door, storm door or screen porch Screen Door model, Heavy Duty Storm Door, SB4 for screen enclosures
Interior door Interior Pet Pass Thru
Kennel or dog run Guillotine kennel doors
Any of the above, in a size not listed Custom made-to-measure doors (request a quote)

Step 2: Pick the flap system

MaxSeal PRO MaxSeal Standard SB72 / SB72W
Flap Insulated flap system Insulated, sealed flap Weatherized vinyl flaps Aluminum-clad polycarbonate air-cell flap with rare earth magnets
Locking Heavy-duty locking cover Lockable security panel 1/4" HDPE locking panel Locking security panel (loads from top, left or right)
Sizes 10, from 6" x 7.5" to 15.75" x 32" In-Glass: 10, up to 15.75" x 32"; Patio: 5, up to 15" x 24" 4, from 7" x 11" to 15" x 23" 5, from 9" x 12" to 15" x 24"
Formats Doors, walls Glass, patio inserts Doors, walls, glass, patio and window inserts Doors (SB72), walls (SB72W)
Best for Cold or windy weather, giant breeds Glass and sliding doors in hot or cold climates Best value in mild climates Dogs that chew flaps; extreme cold

Single or dual flap? A dual flap unit puts a flap on each side of the door and seals better in cold or windy weather. A single flap costs less.

Step 3: Choose the size

The flap opening should be a little wider than your dog's widest point and 1.5" to 2" taller than their height at the shoulders. Size for your largest pet and check the step-over height for your smallest. Each product page has the full size table and Security Boss's sizing video.

Comparing brands?

See Security Boss vs Hale, Security Boss vs PetSafe and Security Boss vs Endura Flap.

Security Boss FAQs

What is the difference between MaxSeal PRO, MaxSeal and Standard?

MaxSeal PRO is Security Boss's top door and wall model, with an insulated flap system, a heavy-duty locking cover and 10 sizes up to 15.75" x 32". MaxSeal brings the insulated, sealed flap to in-glass doors and patio inserts. Standard is the lower-cost line, with weatherized vinyl flaps, a 1/4" HDPE locking panel and 4 sizes from 7" x 11" to 15" x 23".

Can I install a Security Boss dog door without cutting?

Yes. The MaxSeal, Standard and Giant Breed patio inserts stand in a sliding glass door track, and the window insert stands in a sliding window track. A spring-loaded top locks from inside, and you can lift the insert out when you want the full opening back.

What warranty do Security Boss dog doors have?

Security Boss pet doors, screen doors and patio inserts carry a 6-year prorated limited warranty on parts and components. Flaps are wear parts. Guillotine kennel doors carry a 1-year limited warranty. See our warranty page.

How long does a Security Boss door take to ship?

Security Boss builds each door by hand to order in the USA. Production can take up to 2 weeks, then it ships by UPS or FedEx. Shipping is calculated at checkout; see our shipping policy.

Still have a question? Text a pro at 737-215-3211 or send us a message.