18x24 Large Cardboard Sheets 100 Pack - Heavy Duty 3/16in Backers

In this review the focus is on a simple, practical product for anyone who ships, frames, moves, or crafts: a 100 pack of 18x24 corrugated cardboard sheets. The bottom line is that these sheets deliver reliable stiffness and protection at a bulk-friendly price, making them a clear pick for small businesses, schools, and hobbyists who need consistent backing or packing material. The reviewer found the thickness and corrugation well suited to backing prints in sleeves, reinforcing boxes for transit, and serving as target backers at the range.

Key Features

• Size and quantity: The 100 pack of 18x24 sheets provides a large supply that reduces repurchasing and is convenient for repetitive tasks like packing or classroom projects.
• Thickness and strength: At about 3/16in thick, the corrugated construction offers noticeable rigidity to protect prints, fragile items, and boxed goods during handling and shipping.
• Versatile use: These sheets work as mailing inserts, flat dividers, poster backers, moving reinforcements, and craft material, making them a multi-purpose resource.
• Compatible with other sizes: The product line includes multiple sizes such as 20x24, 24x24, and larger sheets, so these 18x24 backers integrate well when mixed for different projects.
• Bulk value: Buying in a pack of 100 reduces cost per sheet and keeps a steady supply for businesses, classrooms, or frequent shippers.

Who It's For

These cardboard sheets are best for small business owners who pack and ship prints or framed items, hobbyists who need sturdy flat stock for model building or displays, and schools that run arts and craft projects requiring consistent backing material. The pack size and durability particularly suit users who go through large quantities and appreciate a uniform, thick sheet for protection and separation.

Those who should look elsewhere include buyers who need waterproof or padded protection (these are plain corrugated sheets) or consumers who only need a handful of sheets; single-sheet or smaller-count options could be more economical for very light users.

Pros & Cons

Pros

• Sturdy 3/16in corrugated thickness provides reliable backing and protection for prints and shipped items.
• Large 100 pack offers strong bulk value and reduces frequent reorders for businesses or classrooms.
• Multipurpose use across mailing, moving, target backers, and craft projects makes the sheets flexible.

Cons

• These are untreated corrugated sheets, so they are not water resistant and will not replace padded or bubble-lined protection.

Specifications

Brand	WHOLESALE ARTS AND FRAMES
Pack quantity	100 sheets
Sheet size	18 x 24 in
Thickness	3/16 in corrugated
Primary uses	Packing, mailing, moving, crafts, target backers
Format	Flat cardboard dividers / blanks

Our Verdict

These 18x24 cardboard sheets are a practical, no-frills solution for protecting and reinforcing items in transit or for craft and classroom use. With sturdy 3/16in corrugation and a convenient 100 pack, they represent good value for anyone who needs reliable backing or bulk dividers, provided waterproofing or cushioning is not required.

Frequently Asked Questions

Are these sheets rigid enough for backing prints?
Yes, customers report the thickness and corrugation work well as backing for prints in plastic sleeves and for preventing bending during handling.

Can these be used as shipping separators?
Yes, they are suitable as flat dividers and reinforcements inside boxes to separate and protect products during shipping.

Are the sheets water resistant?
No, these are plain corrugated cardboard sheets and are not treated for water resistance; use additional waterproofing if needed.