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FilingSupplies.com
POLY File Box with 3" Expansion - Letter Size - Black - Carton of 12
Retail:$169.44Our Price:$108.17(You Save: $61.27 )Manage multiple projects within a single portable file box. Sturdy poly file box holds up to 3" of files or materials and can be used again and again. The poly file box is a handy desktop filing system for either file folders or hanging file folders. In...
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Choosing the right file folders
FilingSupplies.com carries end-tab folders for open-shelf systems, top-tab folders for drawer filing, and heavy-duty classification folders with dividers and fasteners for multi-section records. Pick letter or legal size, then choose material (11-pt, 14-pt, or 18-pt manila), optional reinforced tabs, color-coding, and expansion capacity to match your volume.
Folder FAQs
End-tab vs. top-tab â whatâs the difference?
End-tab folders show the tab on the long side and are used on open-shelf systems; top-tab folders
show the tab along the top edge and are designed for drawer filing.
When should I choose classification folders?
Choose classification folders when you need built-in dividers and 2-prong fasteners to separate sections
within one fileâideal for medical charts, legal matters, and case files.
Letter or legal size â how do I pick?
Letter (8.5" Ă 11") fits standard documents; legal (8.5" Ă 14") fits longer forms.
Match the folder to both your documents and storage equipment.
What tab and material options are available?
Tabs include full-cut, 1/2-cut, or 1/3-cut (assorted positions). Materials range from 11-pt to 18-pt manila,
with optional reinforced (2-ply) tabs for added durability.
Can I add fasteners, pockets, or expansion?
Yesâadd 2" bonded fasteners (various positions), pockets/jackets, and expansion gussets
(e.g., 3/4" to 2"+). Check each productâs options for capacity and placement.
Do you offer volume pricing or custom printing?
We offer bulk price breaks and custom printing (logos, lines, colors). Call (800) 810-3453
for a quote.
Outfitting classrooms that work all day
Build a durable, age-appropriate classroom with furniture, early-learning materials, storage bins, learning centers, and presentation tools. Choose adjustable pieces that grow with grades, label friendly bins for quick clean-up, and tech carts that secure, charge, and move easily.
Education FAQs
What safety labels should I look for on school and early-childhood items?
For childrenâs products, look for CPSIA compliance and a Childrenâs Product Certificate (CPC).
Art materials should be labeled to ASTM D-4236; many also carry ACMIâs âAPâ (non-toxic) or âCLâ
seals. These help confirm proper cautionary labeling and third-party testing where required.
How do I pick classroom furniture across grade levels?
Favor adjustable-height desks/tables and seating tested to ANSI/BIFMA X6.1 for educational
use. Check manufacturer grade/height charts; adjustable ranges let you cover multiple grades with one model and
simplify purchasing and spares.
Whatâs the best way to organize supplies and centers?
Use latching, stackable bins (clear for quick ID; colors for zones/subjects). Add label holders on bins and shelves,
and keep a posted color key so students can reset the room independently.
How do I choose learning games and manipulatives by age?
Match to the stated age/grade band and learning goals (fine motor, numeracy, literacy). For early childhood,
prioritize oversized pieces, wipe-clean surfaces, and non-toxic finishes.
What should I consider in a charging/tech cart?
Count devices and case sizes; verify slot width/height, cable management, ventilation, and locking doors.
If devices support fast-charge (e.g., USB-C PD), confirm the cartâs power specs and total charging wattage.
Do you support school POs, bulk pricing, or custom printing?
Yesâvolume pricing and custom imprinting (school name, mascot, subject headers) are available. Call
(800) 810-3453.
Choosing the right labels
From color file labels to printable sheets, select the right size, adhesive, and print method to match your filing system and equipment. Decide on sheet vs. roll format, then pick permanent or removable adhesive and your color set.
Labels FAQs
Sheet vs. roll labels â whatâs the difference?
Sheet labels (letter-size) run through laser/inkjet printers; roll labels feed through thermal or dedicated label printers.
Permanent or removable adhesive?
Permanent adhesives are best for long-term filing; removable adhesives peel away cleanly from most surfaces for temporary notes or re-use.
Will these labels work in my printer?
Check each itemâs spec for âlaser,â âinkjet,â or âthermal.â Avoid running inkjet-only sheets through a laser printer.
How do I match the label size to folder tabs or binder spines?
Measure the printable area of your tab or spine and match to the labelâs width/height. If unsure, choose a slightly smaller label for clean alignment.
Can I get preprinted sequences or color bars?
Yesâchoose preprinted sets (A-Z, 0-9, months) or request custom colors/text to match your filing system.
Do you have templates?
We provide size specifications and many customers use common label templates. If you need help aligning, call (800) 810-3453.
Choosing the right tab dividers
Organize binders with preprinted or blank tabs. Select the number of tabs per set (5, 8, 10, or 12), choose paper with reinforced tabs or durable poly, and match letter or legal size for a clean fit.
Tab Dividers FAQs
What do 5-, 8-, 10-, or 12-tab sets mean?
Thatâs the number of tabs per set. More tabs provide finer organization; fewer tabs give larger, easier-to-read tabs.
Paper vs. poly â which should I choose?
Paper (often with Mylar-reinforced tabs) is economical and easy to write on; poly resists tears and moisture for heavy use and frequent handling.
Are the tabs printable?
Some tabs are hand-write only; others are laser/inkjet printable. Check each product for âprintableâ support and printer compatibility.
Will they fit my binder?
Choose letter (8.5" Ă 11") for most 3-ring binders or legal (8.5" Ă 14") for longer documents. Many options are pre-punched for standard rings.
Can I mix preprinted and blank tabs?
Yesâuse a preprinted core set and add blank or custom tabs for sections unique to your workflow.
Do you make custom tab sets?
Yesâtab titles, colors, and sheet stock can be customized. Call (800) 810-3453.
Choosing the right office supplies
From everyday paper and pens to binders, mailers, and desk organizers, pick durable, compatible options that match your equipment and team size. Start with the right paper and labeling, then add organizers that keep work moving.
Office Supplies FAQs
Which paper weight and brightness should I choose?
Use 20 lb / 75 gsm, 92-brightness for everyday printing; step up to 24â28 lb and 96+ brightness for
presentations and double-sided color. If you print heavy coverage or duplex often, the thicker stock helps reduce
show-through. Always confirm your printerâs supported paper weights.
Round-ring vs. D-ring binders â whatâs the difference?
D-ring binders hold more paper at the same spine width and keep pages lying flatter, which reduces edge wear. Round-rings are
economical for smaller sets. Pick capacity based on sheet count and how often you turn pages.
What does âsheet capacityâ mean on staplers and hole punches?
Itâs measured using standard 20 lb copy paper. If you use heavier paper, expect a lower effective capacity. For shared spaces,
choose high-capacity staplers/punches to avoid jams and downtime.
Will labels, envelopes, and mailers work with my printer?
Check each itemâs spec for âlaser,â âinkjet,â or âthermal.â Laser-safe adhesives resist heat; some inkjet-only sheets shouldnât go through
laser fusers. Use your printerâs label or heavy-stock setting for best feed and adhesion.
How do I choose mailers and shipping boxes?
Bubble or poly mailers are great for lightweight, non-fragile contents; corrugated boxes protect heavier or delicate items.
Match interior dimensions to your contents, add cushioning if needed, and choose stronger board as weight increases.
Do you offer eco-conscious options or bulk pricing?
Many items are available with recycled content or reduced-waste packaging, and we offer volume price breaks.
Call (800) 810-3453 for large-order help or product guidance.
Choosing the right sports & PE equipment
Equip classes, teams, and rec programs with durable balls, goals, cones, pinnies, storage, and safety gear. Match sizes and materials to age group and whether you play indoors or outdoors.
Sports & Athletics FAQs
What ball sizes should I choose for different ages?
Use ageâappropriate sizes for safer, more successful play. Common guidelines include:
- Basketball: Size 5 (27.5") youth, Size 6 (28.5") intermediate, Size 7 (29.5") official.
- Soccer: Size 3 up to ~8 years, Size 4 ~8â12, Size 5 ~12+.
- Volleyball: Regulation balls for teens/adults; lighter training balls for younger players.
Indoor vs. outdoor â which materials hold up best?
Composite or rubberâcovered balls and poly cones hold up well outdoors; leather and finer composites are best indoors.
For markers, look for UVâstable plastics; for goals, choose powderâcoated frames and weatherâresistant nets for outdoor use.
How many pinnies, cones, or markers do I need?
For classes and drills, packs of 12 are a good start; 24â36 pieces cover fullâclass activities and multiple stations.
Choose mixed colors for quick team splits and field zones.
Tips for storage and care?
Use ventilated ball bags or carts, wipe down gear after outdoor use, and avoid prolonged heat/sun in storage.
Inflate balls to the manufacturerâs recommendations and check pressure periodically to extend lifespan.
Are items latexâfree and schoolâsafe?
Many products are offered in latexâfree or phthalateâfree materials. Look for those callouts on the product page.
Childrenâs items may include compliance statements on labeling; review those details if youâre purchasing for younger ages.
Do you support bulk orders or custom printing (team names)?
Yesâvolume pricing and custom imprinting are available on many items. Call (800) 810â3453
for a quote or assistance with large sets.
Shipping & Policies
Do you offer free shipping?
Yesâfree ground shipping on orders of $99+.
What are your shipping rates?
- $6.95 for labels-only orders under $40
- $14.95 flat rate for everything else
Do you offer bulk discounts?
Yesâvolume pricing is available on many items. Contact us for a quote or large-order assistance.
Do you accept purchase orders (POs)?
Yesâwe accept POs from schools and government agencies. If you need terms or documentation, please reach out.
Where can I read your full Shipping and Return policies?
See our Shipping Policy and Return Policy for full details.