10 Best Rectangle Soap Making Molds of 2025

Tested and Reviewed: Top 10 Rectangle Soap Making Molds deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

JET LAG

Rectangle Soap Mold 2Pack, Large Size Soap Mold 5oz, Sturdy and Durable Rectangle Silicone Mold for Soap Making

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Editor's bottom line:

“This rectangle soap making molds is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SAFE MATERIAL: 100% food grade silicone, Non-toxic and non-smell Rectangle silicone mold.
LARGE SIZE: Rectangle soap mold cavity size 3.5 x 2.3 x 1.2in, Make 5oz big soap bars.
EASY RELEASE: Its super easy to pull the mold off, the soap come out with smooth corners.
MULTIPURPOSE: The silicone mold can be used for soap molds, lotion bar molds and baking molds.
PROFESSIONAL: Professional supplier of the soap mold for more than 15 years. Why not choose us?

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9.5

Ogrmar

Ogrmar Flexible Rectangular Soap Silicone Mold with Wood Box DIY Tool for Soap Cake Making 42oz (Purple-2PCS)

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Main Highlights

Cold resistant and high temperature resistant,temperature: -40°F to 446°F (-40°C to 230°C)
Silicone mold dimension(L x W x H):10"x3"x2.7",wood box dimension(L x W x H):11"x3.5"x3.2",it can
Produce 1.2kg soap;Net weight:17Oz,Color:purple
Perfect suitable for soap,cake, ice cream,chocolate, etc.
Package includes: 1x silicone mold , 1x wood box

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9.5

SJ

SJ Silicone Soap Molds 3 Packs, Rectangle Soap Molds for Soap Making, 6 Cavity Mold for Homemade Craft Soap Mold, Jelly, Chocolate & Ice Cube Trays(Blue, Purple & Pink)

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Main Highlights

Food-Safe & Premium Silicone: SJ soap mold crafted from soft, flexible, high-grade silicone for superior durability. Features a non-stick, easy-release surface and withstands extreme temps from -104°F to 446°F (freezer to oven-safe). Completely BPA-free and family-safe.
Effortless Release: Simply pour your soap mixture into the molds and let it set. The soft, flexible silicone and non-stick surface make releasing your soap a breeze just gently push from the bottom for perfect, unbroken bars. Pro Tip: Place the mold on a baking sheet for easier handling and removal.
Value Pack: Each set includes 3 sturdy silicone molds. Each mold has 6 cavities (3.15" L x 2.15" W x 0.75" H per cavity). The overall tray measures 7.8" L x 7" W x 0.8" H. Each cavity holds approximately 2.8 fl oz of liquid. Great value for frequent crafters!
Enjoy Creative Crafting: This versatile 6-cavity soap molds for soap making lets you easily craft beautiful handmade soaps. But that's not all! Perfectly sized for Rice Krispies Treats, teacakes, jellies, chocolates, creative desserts, cheesecakes, muffins, panna cotta, and even candles, Velas artísticas, resin art, or clay crafts. Endless creative possibilities!
Trusted Quality & Satisfaction Guarantee: SJ specializes in silicone innovation, bringing you top-quality silicone soap molds. We stand behind our products! If you have any questions or concerns, contact us directly for prompt and satisfactory solutions. Your happiness is our priority.

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9.2

DD-life

DD-life Flexible Rectangular Soap Silicone Loaf Mold Wood Box for 42oz Soap Making Supplies ¡

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Main Highlights

Material: Made of high quality silicone mold and wood.
Package include:1 silicone mold+1 wood box.
Box dimensions (L x W x H): 27.94cm x 8.59cm x 8.59cm. Silicone mold size (L x W x H):10-1/4 "x 2-3/4" x 3 ". Produces 1.2 kilograms (42 ounces) of soap.
Heat resistant temperature -40 C to +230 C, reusable, innovative design, soft, diverse styles, easy to peel, easy to clean.
Suitable for making soap, cake, ice cream, chocolate and so on.

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9.0

Ziliny

Ziliny 4 Pcs Flexible Rectangular Soap Mold Silicone Molds with Wood Box Soap Loaf Making Supplies DIY Tool for Making Craft(Purple, Green, Blue, Pink)

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Main Highlights

Reliable Material: soap molds are made of quality silicone, not only durable but also flexible, providing a stable structure for your soaps; The wooden boxes add an aesthetic touch and are also robust and resistant to wear
Easy to Use and Clean: soap loaf molds are designed for convenience, enabling easy release of the soap after cooling and hardening; This mold does not adhere to the soap, making the cleaning process simple
Wide Application: these versatile silicone soap molds are ideal not only for soap making but also for crafting lotion bars, homemade chocolate bars, and even bread loafs; Explore the possibilities this rectangular soap mold has to offer
Package Includes: you will get 4 pcs soap molds for soap making, each in distinct colors of purple, green, blue, and pink, along with matching wooden boxes, promising ample opportunities for soap making
Size Information: soap silicone mold internal size are approximately 9.7 x 2.2 x 2.7 inches, offering ample space to create soaps of considerable size; The wooden boxes are slightly larger, measuring at external size are about 10.5 x 3 x 3.1 inches, internal size are about 10 x 2.4 x 2.7 inches thus ensuring a nice fit for the silicone molds; The capacity of a single mold is about 1200 ml / 42 oz

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8.8

Lerykin

LERYKIN Rectangular Soap Mold Kit with Cutter- 42oz Flexible Silicone Loaf Soap Mold with Wood Box, Stainless Steel Wavy & Straight Scraper for Homemade Craft Soap Making Supplies

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Main Highlights

COMPLETE SOAP MAKING ACCESSORY & VERSATILE USE - LERYKIN Rectangular Soap Mold is ideal for beginners, children and adults or home workshop soap makers. A great tool for Making both CP and MP soaps. It's not only used to make soap, but also very suitable for making cake, bread, desserts & pastries. Use paper bags or plastic bags for packaging and storage, and can also be used as exquisite gifts.
EASY TO USE & CLEAN - The Flexibility and non-stick surface of the soap molds help quick release to your soap. Fill or pour your favorite recipes into the molds and wait untill they are completely cooled. Then turn it upside down, they JUST POP OUT with pressed finger. The Flexible Silicone Soap Molds are Washable - Dishwasher Safe and Reusable. Heat-Resistant ranging from -40 to +446 (-40 to +230) Can Be Used in Oven, Microwave Oven & Refrigerator.
NON-STICK SILICONE & HIGH QUALITY WOODEN FRAME - LERYKIN Silicone Soap Mold is made of 100% BPA-free silicone, non-stick, non-slip, non-fading, durable and flexible, safe & eco-friendly, and not easy to deform or tear. The silicone insert is strong and thick, which fits perfectly with the wooden frame. The wooden box is provided so that the soap will not be deformed, and it can cool down more slowly to obtain a smoother appearance. LERYKIN box is made of high-quality natural wood without burrs.
PERFECT SIZE & LARGE CAPACITY - LERYKIN soap mold has a capacity of 42 ounces, which is large and deep. The Stainless Steel Wavy & Straight Cutter can help you to make about 8 pieces of 2 1/4 slices. Silicone mold (L x W x H): 10.75"x3.3"x2.95", wooded box (L x W x H): 11"x3.5"x3.2", Wavy Cutter(L x W ) 7.3" x 4.3", Cutter (L x W ) 5.9" x 4.3".
LERYKIN focuses on DIY Tools research and development. We are confident that we provide our customers with Healthy, Eco-friendly DIY Tools & Best service last forever. You can rest assured that we have the best soap molds on the market.

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8.6

Ogrmar

Ogrmar Silicone Soap Molds Kit-42 oz Wooden Silicone Rectangular Mold with Stainless Steel Wavy & Straight Scraper for Soap Cake Making (Purple)

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Main Highlights

Food grade silicone mold. Silicone soap molds temperature safe from -40 to +446 (-40 to +230); reusable, easy to clean, solid wooden box, convenient for fixing and releasing.
This silicon mold kit can be used to make pretty, colorful soaps, sample soaps, guest soaps, travel soaps, etc. You also can create your own special desserts, petite loaf, muffin, brownie, cornbread, cheesecake, pudding and more with the soap making molds.
The silicone soap molds is great tool for beginners to use. Simply pour your favorite recipe in the mold, prepare, and cool completely. Then turn it upside down, this flexible silicone mold offers a non-stick surface that allows the baked goods to pop right out with a little push from the bottom.
Wooden box size: 11x3.5x3.2 in , silicone mold size: 10x3x2.7 in, each mold can make 42oz soap .
Wavy cutter size: 7.3 x 4.7 in, straight cutter size: 5.9 x 4.4 in.

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8.3

Walfos

Walfos Silicone Soap Molds Set of 3, 6 Cavities Rectangle Silicone Soap Molds for Homemade Craft Soap Mold, Cake,Chocolate ＆ Ice Cube Tray（Blue & Purple ＆ Pink）

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Main Highlights

SAFE FOOD-GRADE MATERIALl - Walfos silicone soap molds are Flexible and Non-stick, heat resistant from -104 to 446, BPA Free, very practicality and durability. Walfos soap molds can be reusable, innovative design, soft, and stripping easy.
EASY TO USE - Simply pour your favorite recipe in the mold and cool completely. Walfos flexible silicone mold offers a non-stick surface that allows the baked goods to pop right out with a little push from the bottom.
ENJOY SOAP MAKING AT HOME - large silicone soap mold is cute and practical. It has 6 cavities, Cavity size:3.1"x2.2"x0.8". Easy to clean up, can be used for microwave, oven, refrigerator, freezer and dishwasher.
MULTIPURPOSE - Each package includes 3 soap mold. You can create your own special desserts, homemade soaps, muffin, brownie, cornbread, cheesecake, panna cotta and more with our 6-cavity silicone petite loaf.
Premium Service - We are very confident that you will think we have the best soap mold in the market. If you have any questions about our product, please feel free to send us a message and we will provide you with the most satisfactory solution. We will do our best to ensure that every customer is satisfied with our products and services. Order safely and reliably with Amazon Prime now!

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8.1

Bangp

Bangp 4 Pack Silicone Soap Molds,Rectangle Soap Mold,6 Cavities Silicone Molds for Craft Soap Making,Chocolate, Cake Molds,with 100pcs 3.5x5 inches Bags

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Main Highlights

Practical Soap Molds Set:Include 4 silicone soap molds, totally 24 cavity, Size: 8.7 x 8 x 1 inch, Each cavity size: 3.1 x 2.1 x 1 inch.100 pcs self-sealing bags: 3.5 x 5 inches, for beginners to package and store
Food-Grade Material:Bangp silicone soap molds are made of high-quality silicone,Flexible and Non-stick,BPA-Free, very practicality and durability. Easy to clean up, can be used for microwave, oven, refrigerator, freezer and dishwasher.
DIY Multi-Purpose Silicone Molds:Not only can you use these soap molds as bathroom soap molds or baking molds, but they can also be used as ice cube molds and rectangular silicone cake molds. And wrap and store your handmade items in self-sealing bags to make gift-giving easy and convenient.
Easy to Release:Flexibility and non-stick surface of the soap making molds ensure very easy removing of the soap or dessert.For silicone material is soft and durable,so the molds are a bit soft. If you need a more sturdy support when transfer or move, you can put it on a tray.
Premium Service:If for any reason you aren't satisfied with this handmade soap molds,please feel free to send us a message and we will be happy to provide you with your choice of a replacement or refund.We go out of our way to make sure every customer is happy and satisfied with our product and service.

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8.1

PSKJATIN

Rectangle Silicone Soap Mold 4oz Large Soap Molds for Soap Making,Rectangle Silicone Mold for Soap

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Main Highlights

MOLD SIZE :1Pcs;12.4 x 8.3 x 1.2 inch ,Each cavity size :3.8 x 2.1 inch,9 cavity,Cavity Capacity: 4oz-5oz each .
MULTIPURPOSE:The rectangle silicone mold has many uses, not only for soap, but also the silicone baking mold for mini loaf cake and bread, meatloaf, cornread, brownie, muffin
SAFE TO USE: Soap making molds are safe used in oven, microwave oven, freezer and dishwasher. Temperature safe from -104 to +446(-40 to +230 degrees Celsius).
EASY TO CLEAN: These silicone soap molds won't crack or break like hard plastic molds. You can take out the soap easily. Easy to remove soap from and easy to clean.
FOOD GRADE MATERIAL: Rectangle silicone soap mold is made of food-grade silicone, bpa free, flexible and non-stick,complying with safety standards and the soaps and crafts pop out easily.

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Our Best Overall Choice

Best Choice

9.7

JET LAG

Rectangle Soap Mold 2Pack, Large Size Soap Mold 5oz, Sturdy and Durable Rectangle Silicone Mold for Soap Making

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SAFE MATERIAL: 100% food grade silicone, Non-toxic and non-smell Rectangle silicone mold.
LARGE SIZE: Rectangle soap mold cavity size 3.5 x 2.3 x 1.2in, Make 5oz big soap bars.
EASY RELEASE: Its super easy to pull the mold off, the soap come out with smooth corners.
MULTIPURPOSE: The silicone mold can be used for soap molds, lotion bar molds and baking molds.
PROFESSIONAL: Professional supplier of the soap mold for more than 15 years. Why not choose us?

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Special Amazon deal ends in:

10 Best Rectangle Soap Making Molds of 2025

Tested and Reviewed: Top 10 Rectangle Soap Making Molds deals with expert ratings from 8.1 to a perfect 10

JET LAG

Rectangle Soap Mold 2Pack, Large Size Soap Mold 5oz, Sturdy and Durable Rectangle Silicone Mold for Soap Making

Editor's bottom line:

Main Highlights

Ogrmar

Ogrmar Flexible Rectangular Soap Silicone Mold with Wood Box DIY Tool for Soap Cake Making 42oz (Purple-2PCS)

Main Highlights

SJ

SJ Silicone Soap Molds 3 Packs, Rectangle Soap Molds for Soap Making, 6 Cavity Mold for Homemade Craft Soap Mold, Jelly, Chocolate & Ice Cube Trays(Blue, Purple & Pink)

Main Highlights

DD-life

DD-life Flexible Rectangular Soap Silicone Loaf Mold Wood Box for 42oz Soap Making Supplies ¡­

Main Highlights

Ziliny

Ziliny 4 Pcs Flexible Rectangular Soap Mold Silicone Molds with Wood Box Soap Loaf Making Supplies DIY Tool for Making Craft(Purple, Green, Blue, Pink)

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Lerykin

LERYKIN Rectangular Soap Mold Kit with Cutter- 42oz Flexible Silicone Loaf Soap Mold with Wood Box, Stainless Steel Wavy & Straight Scraper for Homemade Craft Soap Making Supplies

Main Highlights

Ogrmar

Ogrmar Silicone Soap Molds Kit-42 oz Wooden Silicone Rectangular Mold with Stainless Steel Wavy & Straight Scraper for Soap Cake Making (Purple)

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Walfos

Walfos Silicone Soap Molds Set of 3, 6 Cavities Rectangle Silicone Soap Molds for Homemade Craft Soap Mold, Cake,Chocolate ＆ Ice Cube Tray（Blue & Purple ＆ Pink）

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Bangp

Bangp 4 Pack Silicone Soap Molds,Rectangle Soap Mold,6 Cavities Silicone Molds for Craft Soap Making,Chocolate, Cake Molds,with 100pcs 3.5x5 inches Bags

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PSKJATIN

Rectangle Silicone Soap Mold 4oz Large Soap Molds for Soap Making,Rectangle Silicone Mold for Soap

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Our Best Overall Choice

JET LAG

Rectangle Soap Mold 2Pack, Large Size Soap Mold 5oz, Sturdy and Durable Rectangle Silicone Mold for Soap Making

Editor's bottom line:

Main Highlights

Deals are Live

DD-life Flexible Rectangular Soap Silicone Loaf Mold Wood Box for 42oz Soap Making Supplies ¡