Carbon Copy Letter
Need a reliable way to duplicate written correspondence instantly? At Custom Boxes Lab, we produce high-quality carbon copy letter forms that let you create multiple copies of the same message in one go. Whether you’re issuing agreements, internal memos, or service notes, these carbon-based or carbonless forms simplify documentation and recordkeeping. So, order your carbon copy letter sets from Custom Boxes Lab and make every letter count—once written, twice delivered.
Availability: In Stock

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Designed for Duplicates and Daily Efficiency
Our carbon copy forms are ideal for offices, field services, or administrative teams that need instant duplicates without reprinting.
They offer fast, handwritten documentation that reduces errors and speeds up processes.
Materials
We use premium-grade papers to ensure clarity across copies:
- NCR Carbonless Paper – Modern solution for clean, smudge-free duplicates
- Carbon-Backed Paper – Traditional option for classic workflows
- White/Canary/Pink Triplicates – Easy sorting and filing
- Recycled NCR Paper – Eco-friendly option for duplicate forms
Each sheet transfers cleanly and resists ink bleed-through for legibility.
Sizes
Standard and customizable sizes based on your document needs:
- 8.5″ x 11″ – Standard letter size for formal correspondence
- 5.5″ x 8.5″ – Compact version for memos or field use
- Custom cuts available for form books or inserts
We tailor layouts to fit binders, clipboards, or folders for ease of use.
Printing
Your carbon copy letter forms come pre-printed and ready to write:
- Black or color printing on top sheet, with grayscale copies below
- Pre-filled company details, lines, and signature areas
- Sequential numbering and date fields for recordkeeping
Printed with fade-resistant ink for clarity across multiple copies.
Add-ons
Boost usability with helpful finishing options:
- Wrap-around writing covers
- Perforated tear-off sections
- Stapled or glued edge padding
- Hole punching for binders
These features help you write, store, and reference letters easily.
Types of Carbon Copy Letters
Ideal for businesses that require immediate written confirmation or acknowledgment:
- Client agreement forms
- Internal office memos
- Service orders or repair tickets
- Legal notices and HR letters
Perfect for multi-department or field-based operations that rely on written trails.
3Ps of Reliable Multi-Part Stationery
- Presentation
Pre-formatted carbon copy letters ensure uniform, professional communication across teams. - Preservation
Durable paper stocks prevent fading, smudging, or accidental marks across multiple pages. - Protection
Each copy serves as a secure backup or physical record—essential for compliance and auditing.
Go Premium with Custom Form Options
Upgrade your carbon copy letter sets with:
- Colored headers or custom form layouts
- Security printing or watermarks
- Multi-part carbonless sets (2, 3, or 4-ply)
Why Choose Custom Boxes Lab?
We print carbon copy letters that help you streamline documentation and improve internal communication.
- Free design templates and form customization
- Low minimum orders for teams of all sizes
- Fast turnaround and bulk pricing
- Carbonless and recycled paper options available
- Trusted by contractors, offices, and service-based businesses
Get a Quote Today
Ready to simplify your paperwork with dependable duplicates? Call us at 0000 or email us now to create your carbon copy letter—precise, professional, and print-ready.
Dimensions | All Custom Boxes & Shapes, Paper Bags, Mylar Bags, Tube Packaging |
Availability | InStock |
Printing | No Printing, CMYK, CMYK + 1 PMS Color, CMYK + 2 PMS Colors |
Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E flute Corrugated, Bux Board, Cardstock, Mylar, Paper Bag Stock, Tube Paper, Bespoke Packaging Materials |
Quantities | No Minimum Order Required |
Coating | Gloss, Matte, Spot UV, Holographic Foiling, Gold Foiling, Embossing, Silver Foiling, Debossing |
Default Process | Die Cutting, Gluing, Scoring, Perforation |
Options | Custom Window Cut Out, Gold/Silver Foiling, Embossing, Raised Ink, PVC Sheet, Bespoke Die-Cuts |
Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
Turn Around Time | 7-10 Business Days, Rush Available |
When measuring a custom box, there are a few technical specifications that must be considered to ensure proper design, manufacturing, and fit for the product. Here are the major technical things to measure a custom box:
Inside Dimensions (Critical for Product Fit)
- Length (L): The longest side of the box measured inside from one corner to the opposite corner.
- Width (W): The shorter side of the box measured inside perpendicular to the length.
- Depth/Height (D or H): Measured inside from the bottom to the top opening of the box. Always specify that dimensions are given in Length × Width × Height.
Outside Dimensions (Important for Shipping & Storage)
- Measure the outer surfaces of the box including material thickness.
- Outside measurements are used for pallet stacking, warehouse spacing, and shipping compliance.
Material Thickness (Board Caliper)
- The thickness of the packaging material (e.g., corrugated board, rigid stock, cardstock).
- Impacts both the internal usable space and external dimensions.
Flap Measurements
- For boxes with flaps (e.g., mailer or shipping boxes), measure:
- Inner flaps: Ensure they meet in the middle without overlapping too much.
- Outer flaps: Allow proper sealing without gaps.
Tolerances
- Account for manufacturing tolerances (usually ±1/16" or ±2mm depending on material).
- Ensure the product fits without being too tight or loose.
Volume Capacity
- Calculate internal cubic capacity (L × W × H).
- Helps in determining how much space the product will occupy and shipping efficiency.
Product Orientation
- Decide how the product sits inside the box and measure accordingly.
- Orientation affects whether length or width is the primary dimension.
Die-Cut Openings or Windows
- Measure exact placement, height, and width for any cutouts.
- Ensure structural integrity when adding windows.
Printing Bleed & Safe Zones
- Include measurements for:
- Bleed area: Extra space beyond the cut line for printing.
- Safe zone: Inner area where critical text or logos should be placed.
Closure Type & Locking Tabs
- Measure slots, tabs, or locks for boxes with custom closures.
- Precision is required to avoid misalignment during assembly.
Packaging Style
- Folds, creases, and scores must be measured for accurate dieline creation.
- Different styles (e.g., RSC, tuck-end, mailer, sleeve) require specific panel measurements.
Delivering Premium Packaging. Materials Tailored for Your Brand and Product.

Cardboard
Giving cardboard material option to give versatility and durability to your box, widely used in many industries.

Kraft
Offering eco-friendly kraft material for your product with the least environmental impact and minimizing waste.

Rigid
Offering you premium rigid boxes, perfect for luxury packaging and high-end presentation.

Corrugated
Custom Boxes Lab specializes in strong, reliable corrugated boxes ideal for shipping and storage.