For decades, corrugated cardboard boxes in Canada have been the go-to choice for shipping and storage due to their exceptional strength and lightweight nature. These features not only protect your products but also help reduce shipping expenses by minimizing additional weight. Coleman Containers makes custom corrugated boxes in Toronto (Etobicoke, ON) and ships them across Canada, sized to your product to cut void space and shipping costs.
To safeguard your products during transportation and storage, it’s crucial to use high-quality materials. When looking for corrugated box manufacturers, choose a supplier with a strong reputation and industry certifications, such as ISO-9001. Coleman Containers is ISO 9001 certified and builds custom corrugated boxes in single- and double-wall board, with Edge Crush Test (ECT) ratings so you can match box strength to your load.
Coleman Containers manufactures custom corrugated boxes in Toronto (Etobicoke, ON) for businesses across Canada and the US. As a cardboard box manufacturer, we build custom shipping, mailer and custom printed cardboard boxes to your inside dimensions in single- or double-wall board, with ISO 9001 certification and fast turnaround.
Investing in custom cardboard boxes means selecting a packaging solution that is both resilient and customizable. At Coleman Containers, we offer custom cardboard boxes in Toronto and across Canada tailored specifically to fit your products, ensuring maximum efficiency in storage and transport. Looking for a specific format? See our custom mailer boxes and custom shipping boxes pages.
One of the biggest advantages of choosing corrugated boxes is their sustainability. These boxes are not only reusable but also fully recyclable, making them an environmentally friendly packaging choice. Coleman Containers prioritizes fast turnaround and high production efficiency, so your custom corrugated boxes arrive on schedule.
As a cardboard box manufacturer in Canada, Coleman Containers produces custom corrugated boxes using advanced manufacturing equipment. Share your product dimensions and shipping needs and we will recommend the right box style, flute and ECT rating, then print your artwork. We manufacture cardboard boxes for e-commerce, automotive, food and beverage, pharmaceutical and industrial customers across Canada and the US.
Businesses need many shapes and styles of boxes for multiple types of consumer goods packaging, and we will cater to all your varied requirements. Let’s take a look at some common styles:
Regular Slotted Carton (RSC) are manufactured from one piece of corrugated board which is scored and slotted to form a body having flaps for closing on each of two opposite faces. The lengthwise flaps normally meet at the centre of the box when folded. This is a highly efficient design for many applications as there is little manufacturing waste. The RSC can be used for most products and is the most common box style. Their versatility makes them a preferred choice for automotive packaging, food packaging supplies, beverage packaging, medical device packaging and many other consumer goods packaging that need secure, durable packaging.
Half-Slotted Carton (HSC) is very similar to the RSC but without 1 set of flaps.
Full Overlap Slotted Carton (FOL) – All flaps are the same length, approximately the box’s width. When closed, the outer flaps come within 1″ of a complete overlap. This box style is designed to withstand heavy-duty use and harsh handling conditions. When placed with its bottom panel facing down, the overlapping flaps enhance cushioning, offering superior protection for the contents. When positioned on its side, the extra thickness increases structural integrity, ensuring enhanced stacking strength and durability.
Five Panel Wrap Carton– a one-piece carton that wraps around the product and closes with an overlapping panel, suited to long or narrow items.
Cut Out Wrap Carton – Folders consist of one or more cut and scored pieces that provide an unbroken outer bottom surface. Lengthwise, outer flaps must meet or overlap.
Full Telescope Carton – a two-piece box in which a lid of equal depth slides over the body, adding stacking strength for heavy or fragile products.
Telescope Carton With Lid – a body with a separate lid that telescopes over it, for products that need a removable top.
Half Slotted Carton With Lid – consists of body and cover sections, the cover section extending over the sides of the body section less than two- thirds the depth of the body.
Full Telescope Half Slotted Carton – consists of body and cover sections of equal depth, cover extending to bottom (FTHS and FTD).
We also offer corrugated returnable totes and WIP bins, a cost-effective alternative to plastic returnables.

There are three dimensions that define the size of corrugated packaging supplies, and we always define these using the inside measurements so your box will fit your products perfectly:
Length – to the closest 1/16″
Width – to the closest 1/16″
Depth (or height) – to the closest 1/16″
Dimensions are based on the opening of an assembled box. Once open find the longer of the sides – this is considered the “Length”. The shorter of the 2 sides is considered the “Width”. The side perpendicular to the length and width is the “Depth” of the box.
Not sure of your dimensions? Send us your product specifications and our team will recommend the right style and board grade.
The strength of a corrugated cardboard box starts with its material. A corrugated sheet consists of 2 major components – liner and medium. Liner is the flat paper that covers both sides of the sheet, and the medium is the fluted paper found between the liners. The flute, when glued to the linerboards with a starch-based adhesive, resists bending and pressure from all directions. When placed vertically on its ends, the flutes form vertical columns capable of supporting considerable amounts of weight.
Flutes come in several heights, the most common being the C flute which is used for RSC’s, and the B flute, which is used for die-cut boxes.
Edge Crush Test (ECT) – ECT measures how much resistance the box has to being crushed. The factors that calculate ECT are the liners (flat part of box wall construction), the medium (fluted material), and the type of flute used (C, B, A, E). Coleman Containers offers corrugated boxes in:
Single Wall ECT: 23 – 26 – 29 – 32 – 40 – 44 – 55
Double Wall ECT: 42 – 48 – 51 – 61 – 71 – 81
Triple Wall – Special Orders
Flute – The flute is the arched paper that is adhered to the liners on each side. C Flute (3/16″) and B Flute (1/8″) are the most commonly ordered single wall flutes and BC (5/16″) is the most popular double wall combination.
Most customers choose cardboard boxes that are sealed with a glue tab on the inside of the carton. We can also provide specialty closures such as stitching.
Corrugated box liner is normally kraft (brown). Oyster (white) liner can be also ordered in most flutes and strengths.
Oyster (white) liner is often used where graphic and colour quality is an important factor. Standard colours are available for the Next Day delivery whereas special inks can be ordered for 5-day delivery.
Custom printed cardboard boxes can be printed in up to 3 colours using flexographic printing, the most commonly used process in box printing. The designs can be provided by you or our graphic designers can create custom graphics for you.
How many boxes do you need? Many businesses need fast turnarounds and don’t want to carry boxes in inventory, so Coleman Containers has invested in ultra-fast machines that can deliver high volumes right-away. Ask about our stock and release inventory management program.
Where do the boxes need to go? We ship custom-printed boxes all over Canada and the United States. Boxes can be bundled on standard skids, CHEP pallets, or configured for your warehouse / storage specs. We can also create custom shipping box sample for you to try in your warehouse before committing to full orders.
Looking for a cardboard box supplier you can rely on? Coleman Containers is a corrugated box supplier and corrugated packaging supplier to manufacturers, distributors, food businesses and e-commerce brands. We ship on standard skids or CHEP pallets, configure shipments to your warehouse specs, and manage stock and release inventory so your corrugated boxes are available when you need them.
Custom cardboard packaging from Coleman also includes honeycomb packaging, edge board and chipboard, cardboard display boxes, and kitting and hand assembly, all designed around your product.
Whether you need custom printed boxes, custom mailer boxes, or bulk corrugated packaging supplies, Coleman Containers is your trusted source. Our commitment to quality ensures that your custom shipping boxes offer both durability and cost-effective protection for your valuable products.
Contact Coleman Containers today for custom corrugated boxes in Toronto at the right price and in the right timeframe. Call 1-800-493-7441 to discuss your needs or request a quote.
Standard printing colours are available for next-day delivery, and special inks can be ordered for 5-day delivery. Lead times for large or complex orders vary, so contact us to confirm.
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