Bags, Poly, & Plastic

SupplyLand carries poly bags and plastic packaging bags in hundreds of styles and sizes for industrial, commercial, and e-commerce operations. Our flat poly bags cover everyday packaging and storage needs from 1 mil lightweight film to 6 mil heavy-duty poly, while reclosable bags and resealable bags give your customers an easy reopen-and-reseal experience for parts, food, retail products, and samples. Need a bag that expands to fit bulkier contents? Gusseted bags and slider zip bags handle both volume and convenience. All poly bags ship in bulk case quantities at wholesale pricing with fast delivery.

Beyond standard clear poly bags, SupplyLand stocks a full range of specialty plastic packaging supplies for industrial and commercial applications. Poly sheeting and poly tubing are available in roll form for custom-cut applications including surface protection and continuous-feed packaging lines. Pallet covers and top sheeting protect stacked loads from dust and moisture in storage and transit. Specialty options include hang hole bags for retail display, ice bags for food service, and polypropylene bags for apparel and high-clarity display packaging. Pair any poly bag with packing tape or labels for a complete packaging solution.

What is the difference between flat poly bags, gusseted bags, and reclosable bags?

Flat poly bags are open on one end and heat-sealed on the other three, filled and then sealed for single-use applications, the most economical choice for high-volume packaging of parts, produce, and retail goods. Gusseted bags have folded side or bottom panels that expand when filled, giving the bag extra width or depth for bulkier items and allowing it to stand upright. Reclosable bags feature a press-to-close zip-lock seal so they can be opened and resealed repeatedly, ideal for parts inventory, samples, food products, and any application where repeated access is needed.

What mil thickness poly bag should I use?

Mil thickness determines puncture resistance and barrier strength. 1 mil is lightweight and suitable for dry goods, produce, and lightweight parts with no sharp edges. 1.5–2 mil is the most common general-purpose range for retail packaging, hardware, and shipping, covering the majority of flat poly bag applications. 3–4 mil handles heavier components, sharp-edged items, and applications where abrasion resistance matters. 6 mil and above is for heavy industrial use, construction poly sheeting, and applications requiring significant puncture and tear resistance. If you are unsure, 2 mil is a reliable starting point for most commercial packaging needs.

What are polypropylene bags used for?

Polypropylene bags are used when clarity and stiffness matter more than flexibility. PP film has a higher gloss and better moisture resistance than standard polyethylene, making it the preferred choice for apparel, retail garment bags, bakery packaging, and any application where the product needs to be visible and the bag needs to hold its shape. Reclosable polypropylene bags are common for jewelry, craft supplies, and small parts display. For industrial bagging where strength matters more than clarity, standard polyethylene flat poly bags or gusseted bags are typically the better value.

What is poly sheeting used for?

Poly sheeting is a continuous roll of flat polyethylene film used for surface protection, dust containment, construction vapor barriers, greenhouse covers, and custom-cut packaging applications. It is sold by width and mil thickness. Thinner gauges (1–2 mil) work well for surface protection and light-duty covers, while heavier gauges (4–6 mil) are used for construction, industrial containment, and pallet wrapping. Poly tubing is similar but formed into a tube so it can be sealed at both ends for custom-length bagging on packaging lines or for covering long items like pipes, lumber, and equipment.

How do I choose between ice bags, wicketed bags, and bags on a roll for high-volume filling?

Ice bags are pre-formed bags sized and rated for bagged ice applications, available with drawstring closures and printed with standard ice bag graphics. Wicketed bags are stacked on a metal wicket wire so they can be dispensed one at a time on automated or semi-automated filling lines, common in bakery, produce, and food service operations. Bags on a roll are perforated for tear-off dispensing and work well at packing stations and produce counters where speed and accessibility matter. Your choice depends on your fill equipment, throughput volume, and whether you need a closure after filling.