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Regularly: $8.59/Each

Other Available Sizes:

  • Fits standard half-size sheet pans
  • Prevents sides from overbaking
  • Eliminates trimming
  • Flat top edges make extender easy to hold and move
  • Extra durable aluminum channel construction
  • Stainless steel reinforced corners

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Increase the height of your half-size sheet pan with this Baker's Mark 2" half-size aluminum pan extender!

This durable, easy-to-use half-size aluminum pan extender from Baker's Mark is the perfect tool for your bakery or cafe. Built from aluminum and boasting 2" in height, you will be able to make flawless cakes without needing to purchase a new cake pan when you use this extender.

  • Oven Safe

    Oven Safe

    This item can withstand high heat applications and is safe for oven use in food service.

Prevents Overbaking

This pan extender provides a protective barrier between your batter and the pan to not only create higher sides to your cake, but also to prevent overbaking and drying out your product.

Easy to Grab

With flat top edges, this extender is easy to grab when you remove it and comes off clean with help from some cooking spray.

Durable Construction

Featuring an extra durable aluminum channel construction and stainless steel reinforced corners, this reliable pan extender creates attractive, straight sides for easier decorating

How to Use a Pan Extender

Watch this quick video to learn how you can use a pan extender with your sheet pans to bake delicious cakes with ease!

You will need a sheet pan and an extender, plus parchment paper and a release spray. Place the parchment paper on the sheet pan and place the extender on top of it. Spray the pan, making sure not to miss the sides of the extender. Pour the batter into the pan filling it about 3/4 of the way to the top. Bake the cake according to the recipe directions and then gently remove the extender. Using an extender you can prevent the sides of the cake from over-baking, making every bite just as good as any other, and you can eliminate trimming. If you are looking for aesthetic appeal, an extender also allows for straight sides.

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Overall Dimensions:
  • Length: 17 5/16 Inches
  • Width: 12 7/16 Inches
  • Height: 2 Inches

WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Customer Reviews

  • Overall User Rating: Baker's Mark 2" High Half-Size Aluminum Pan Extender

    4.8 stars from 46 reviews


    People Talk About:

    pan sheet extender half great cake cakes baking brownies works

    We absolutely love these pan extenders. Wish we'd known about them sooner. They are what have changed the look of our signature cinnamon buns from ok to WOW OK.

    from TWO SISTERS EMPORIUM Posted on

    Great quality! Works perfectly to convert a half sheet pan into a 2" deep cake pan. I was worried that the product might be flimsy but it is very sturdy. So happy that I purchased them.

    from Jennifer T. Posted on

    I bought two of these 2 inches high half size aluminum Pan extenders so I can make a cake as my customers want. Made of s good quality metal. Very good find!

    from Sugary and Savory Posted on

    Great sheet pan extender to bake cakes. Gave 4 stars because corners are not closed causing batter to leak. As a work around we folded parchment paper around the corners.

    from Cakes by Eva LLC Posted on

    half sheet pan with batter

    Would be great if this was nonstick! I use a lot of spray to ensure easy lift off. Wish I had more uses for it, extender does what it says. Makes great cakes without having to invest in multiple size pans.

    from SOD Posted on

    My first time using a pan extender! works well.. you just put it on your sheet tray! the corners are curved however so i put parchment to cover to prevent leakage

    Posted on

    I am not a fan of this extender. My main complaint is the size - I expected to use it to bake a half-sheet cake, but the inside area is significantly smaller than a half-sheet, and I would not feel comfortable selling a cake made with this extender as a half-sheet cake. Also, my first time using it, I made an oil-based cake and the batter slipped under the extender, and, while baking, spilled up over the sides of the sheet pan resulting in a huge burned mess in the oven. I would give the item one star, but if you do not need a cake that is specifically a half sheet, and you are using a thicker batter, the extender can be used to bake a product with nice, sharp corners and straight sides.

    Posted on

    Thank you for the review, Attia! We are sorry this didn’t work for your application. For your convenience, we’ve posted the item’s dimensions on the product page.

    WebstaurantStore Customer Solutions

    I was looking for something that would give me nice clean edges and also help prevent baked goods on the outer edges of my pans from getting browner than the center, and these work perfectly. They fit nicely in a half sheet pan, and are easy to remove once you take your product out of the oven. I use them for rolls, brownies, and bars, and am sure I will find other applications as well. I highly recommend them!

    from Hope Mountain Farm Posted on

    I bought this with the intention of baking a large cake but ended up finding that it did not fit my baking sheets as I thought they would. The corners of the extender taper up so, if using a liquid batter, cannot contain the contents completely. I was under the impression that the extender would lay completely flat with no exposed areas on the baking sheet but that is not the case. I think this would work best with more rigid or dough-y foods.

    Posted on

    It fits almost perfectly in a half-sheet pan, there is a little bit of extra room both lengthwise and widthwise.

    I was afraid my brownie was going to leak through the holes on the edges, but it works great - of course it depends on the batter. I lined the frame with parchment paper and have been able to bake perfectly straight brownies!

    from Pamela Wasabi Posted on

    Purchased the pan extender for our custard shop. It works very well in our flat pans to give us the increased height to build our thicker frozen custard sheet cakes.

    from McFen Custard LLC Posted on

    I really have yet to attempt to use this as more than a guide for my tiramisu. For baking it was about 2 inches larger than my half sheet pan due to the edges that are flat. I wish I would have known that before purchasing.

    from Naples Confectionery Posted on

    This is such a handy tool to have on hand - makes making your own sheet cake for large groups a breeze! Having it separate from the actual pan makes it easier to store and makes the pan it self more versatile (rather than having a deep sheet pan that you'd only use on occasion). It doesn't 'snap' in to the pan or fit SUPER snuggly so be aware, but it works great!

    Posted on

    This is a really cool interesting product is half size aluminum pan extender I like to 2 inch height on it really great for making sheet cakes

    from Place to be Bistro Posted on

    No need to buy a deeper pan when you can just get this extender for the half sheet pan. It's like having a set of various pans. The baked goods turn out great with perfect edges.

    Posted on

    Love using this pan extender!!! We make slices of "3 Milk" cakes and this pan works wonders.. The cake after baking is just the right thickness and lets not talk about the great price it's being offered at. I highly recommend it if you own a bakery and want to make your life easier..

    from Gonzalez Bakery Posted on

    The 2" high pan extender is one of the greatest inventions ever made, we use it regularly in our bakery and it makes baking cakes, cinnamon rolls and brownies so much easier than without it. No over baking and the corners are perfect.

    from Red B Posted on

    I have several full size pan entenders but have needed a half a couple of time and always had to bake a full cake and cut in half. I like being to able to just bake what i need.

    from youth with a mission Posted on

    AWESOME! Just what I needed to bake my bread rolls in and make taller sheet cakes. gives sheet cakes a better look (not all rounded and tapered).

    Posted on

    Whoever invented the sheet pan extender deserves an award. This is a great product. You will have beautifully straight and squared off edges to whatever you are making. I regret not buying this sooner!

    Posted on

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