A corrugated sheet typically refers to corrugated cardboard: a fluted inner layer sandwiched between flat liners. On this page, you’ll find flat pads/inserts and layer pads in many sizes and thicknesses, plus flexible single-face rolls for wrapping.

• Purpose: Adds rigidity to mailers, separates items in boxes, and supports DIY crafts.
• Options: Common choices include 1.8 mm pads, approx. 1/8" B‑flute boards, and kraft or white finishes.
• Strength: You’ll see ratings like 23 ECT for lightweight inserts and 200#/ECT‑32 for sturdier layer pads.

Picking the right style and rating can help protect items without excess bulk.

Corrugated sheets are offered in pre-counted packs/bundles and as single-face rolls.

• Pack sizes: You’ll see 15, 25, 50, 100, or 200 packs.
• Dimensions: Small inserts (e.g., 3.5"×4.5", 4"×6"), mid sizes (5"×7", 8.5"×11", 11"×14"), up to large pads (e.g., 17 7/8"×23 7/8", 40"×48"). Rolls are commonly 12" wide by ~205" long.
• What affects price: Sheet size, quantity per pack, board thickness/flute, strength ratings (e.g., 23 ECT vs. 200#/ECT‑32), and finish (kraft vs. white).

Comparing pack counts and specifications on the product page can help you find good value for your project and shipping needs.

Start with your item and packaging, then size up thoughtfully.

• Mailers and documents: Match common formats like 5"×7", 8"×10", 8.5"×11", or 11"×14". Leave a small margin so it slides in easily.
• Box layer pads: Choose pads that fit the box footprint (examples on‑site include 7 7/8"×7 7/8" up to 17 7/8"×23 7/8").
• Small parts or cards: Compact sizes such as 3.5"×4.5" or 4"×6" add stiffness without extra weight.
• Clothing and crafts: Medium pads like 8"×10" or 8.5"×11" can help keep fabric or projects flat.

Measuring your packaging’s internal dimensions first can reduce trimming and waste.

They serve similar goals but shine in different scenarios.

• Sheets/pads: Pre‑cut, flat, and rigid. Great as inserts in mailers, dividers between stacked items, or top/bottom layer pads in boxes. Consistent sizes save time.
• Single‑face roll: One smooth liner with exposed fluting. Flexible for wrapping odd shapes, lining boxes, or making quick protective sleeves. A common size is 12" × ~205".
• When to choose: Pick sheets for clean, repeatable cuts and box layering; choose rolls when you need continuous, adaptable cushioning.

Either option can complement other packing materials depending on how fragile or heavy the items are.

These are board strength indicators that help you match protection to the job.

• ECT (Edge Crush Test): Measures a board’s resistance to crushing on the edge. Ratings like 23 ECT are commonly used for lightweight pads/inserts.
• 200#/ECT‑32: Some layer pads list both a burst strength (200#) and an edge‑crush rating (ECT‑32), indicating a sturdier board often chosen for heavier items or stacking.
• How to use it: Higher numbers generally indicate stronger board. For delicate or heavier shipments, consider higher ratings; for simple stiffeners or craft use, lighter ratings may suffice.

Checking the rating in each product description can help align protection with your package weight and handling.