Flat rectangular base that stands upright on shelf or pallet — the premium format for retail-facing woven polypropylene packaging.
The block bottom is formed by folding the bottom panel of the bag into a rectangular shape and sealing it with hot-melt adhesive or sewn closure. Standard base dimensions range from 8 × 20 cm to 15 × 40 cm, depending on bag width and product volume. The precise rectangular footprint ensures consistent pallet patterns and stable multi-layer stacking in warehouse and retail environments. Sackora manufactures block bottom bags in sizes from 5 kg consumer packs to 25 kg contractor and commercial formats.
Block bottom bags are commonly specified with BOPP outer lamination to support full-colour rotogravure or flexographic printing for brand-forward retail packaging. Unlaminated versions with standard flexo printing serve contractor and agricultural channels where visual presentation is secondary to performance. All configurations maintain the core advantage of woven PP — superior tear, puncture, and moisture resistance compared to multi-wall paper alternatives.
Available Sizes
Click any size below for full specifications, or request a custom size.
All specifications are fully customizable. Contact us to discuss your exact requirements.
| Material | Woven Polypropylene (PP) |
|---|---|
| Fabric Weight | 60 – 100 GSM |
| Dimensions (W × L) | 30 × 50 cm to 50 × 90 cm |
| Block Bottom Size | 8 × 20 cm to 15 × 40 cm |
| Load Capacity | 5 – 25 kg |
| Bottom Closure | Hot-melt adhesive or sewn |
| Top Closure | Fold-over sewn, heat-sealed, or pinch-top |
| Lamination | BOPP outer and/or PE inner lamination available |
| Printing | Up to 8-colour rotogravure or 6-colour flexographic |
| Handle | Die-cut, rope, or reinforced carry handle optional |
Block bottom bags are the go-to format for consumer flour, rice, quinoa, and specialty grain products sold in grocery and specialty food stores. The upright presentation maximizes shelf visibility, and BOPP lamination supports the full-colour branded packaging that drives consumer purchase decisions. Bags are manufactured food-grade from virgin PP for direct product contact.
Dog food, cat food, bird seed, and equine feed sold through pet stores, farm supply retailers, and co-ops use block bottom bags in 5–20 kg sizes. The stable base prevents shelf tipping, and the durable woven PP construction withstands the rough handling typical of pet food retail environments. Carry handles can be added for consumer convenience on heavier packs.
Lump charcoal, briquettes, wood pellets, and decorative bark mulch are packed in block bottom bags for hardware store, home centre, and seasonal retail display. The block bottom stands upright on pallets and end-cap displays. High-impact BOPP printed graphics differentiate brands in the competitive outdoor and grilling product aisle.
More Products
Heavy-duty bulk containers from 500–2,000 kg. ISO 21898 tested, available in standard and custom configurations.
Learn More →UV-stabilized woven polypropylene sleeves and rolls for protecting wood products during storage and transport.
Learn More →Bespoke dimensions, specialty printing, and unique configurations engineered to your exact specification.
Learn More →Block bottom bags stand upright on their own, creating a clean retail shelf presentation similar to a paper grocery bag. Standard pillow-style bags (flat bags) slump when filled and cannot stand unsupported. The flat base of a block bottom bag also produces more consistent pallet patterns, reducing wasted warehouse space and improving stacking stability during transport.
Yes. Block bottom bags are compatible with automated open-mouth filling systems including form-fill-seal (FFS) and pre-made bag fill-and-close equipment. Bag placement stations open the block bottom and position the bag under the fill head. After filling, the top is closed by sewing, heat-sealing, or pinch-and-seal depending on line configuration.
With BOPP outer lamination, block bottom bags support up to 8-colour rotogravure printing with photographic image quality, precise PMS colour matching, and metallic or matte finishes. Without lamination, standard flexographic printing delivers up to 4 colours on the woven fabric surface. Rotogravure is recommended for brand-forward retail packaging where shelf impact drives sales.
Yes. Block bottom bags can be manufactured with PE inner lamination that provides a continuous moisture and vapour barrier across all bag surfaces including the bottom panel. This makes them suitable for hygroscopic products such as flour, sugar, salt, and cement. The combination of PE inner lamination for moisture protection and BOPP outer lamination for print quality is a common specification for food and premium consumer products.
Sackora offers die-cut handles punched directly into the bag material, externally applied reinforced plastic handles, and rope or woven strap handles sewn into the top seam. Die-cut handles are the most cost-effective for lighter packs under 10 kg. Reinforced handles are recommended for heavier packs where bag weight could tear a die-cut opening.
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