# item.guide
Side-by-Side Comparison Storage & Organization

Bookcase Shelves vs. Trash Bags

Comparing 2 standards across 15 specifications. 15 key differences identified.

Comparing:
Bookcase Shelves
Trash Bags

Bookcase shelves standardize depths from 8 inches for mass-market paperbacks to 12–14 inches for binders and vinyl records. Maximum unsupported 3/4" shelf spans are limited to 36 inches for solid hardwood and 24–28 inches for particleboard to prevent sag.

View full Bookcase Shelves spec sheet →

Trash bags and can liners standardize gallon capacities and film thicknesses: 4-gallon bathroom bins (0.5 mil), 13-gallon tall kitchen cans (0.7–0.9 mil), 30–39 gallon outdoor cans (1.1–1.5 mil), and 3.0 mil puncture-proof contractor clean-up bags.

View full Trash Bags spec sheet →

Specification Comparison Table

15 Parameters
Parameter / Spec
Governing Standards
Architectural Woodwork Standards (AWS) / Sagulator Calculations ASTM D4397 / Plastics Industry Association Can Liner Standards
Paperback Shelf Depth
8.0 inches (20.3 cm) | Mass-market paperbacks and small paper media
Trade & Hardcover Depth
10.0 to 11.0 inches (25.4–27.9 cm) | Standard fiction & non-fiction
Textbook & Binder Depth
12.0 inches (30.5 cm) | Reference manuals, 3-ring binders, art books
Vinyl Record / Oversized Depth
13.0 to 14.0 inches (33.0–35.6 cm) | 12" LP records and large atlases
Solid Hardwood Max Span (3/4")
36 inches (91 cm) max unsupported span at 35 lbs/ft load
Plywood Max Span (3/4")
30 to 36 inches (76–91 cm) max unsupported span
Particleboard / MDF Max Span
24 to 28 inches (61–71 cm) max before noticeable center sag (>1/32" per foot)
4 Gallon (Small Wastebasket)
17 × 18 inches (43 × 46 cm) | 0.50 mil (13 µm) | Bathroom/Office desk
8 Gallon (Medium Waste)
22 × 22 inches (56 × 56 cm) | 0.50 mil | Bedroom/Laundry bins
13 Gallon (Tall Kitchen)
24 × 27.5 to 24 × 30 inches (61 × 76 cm) | 0.70–0.90 mil (18–23 µm) (Universal)
30 Gallon (Large Can)
30 × 36 inches (76 × 91 cm) | 1.05–1.20 mil | Outdoor curbside round bins
33 to 39 Gallon (Lawn & Leaf)
33 × 45 inches (84 × 114 cm) | 1.10–1.50 mil | Yard trimmings & heavy refuse
55 Gallon (Drum Liner)
38 × 58 inches (96 × 147 cm) | 1.50–2.00 mil | Commercial steel/poly drums
Contractor Clean-Up Bag
3.00 mil (76 µm) heavy-gauge LLDPE | Puncture & tear-proof construction debris