Body Bag Thickness Explained: Microns, Mils and Gauge

Thickness is the most quoted body bag specification – and the most misunderstood.

Units

• Micron (µm or “mic”) – one thousandth of a millimetre. Standard in South Africa and most of the world.
• Mil – one thousandth of an inch, used in US specifications. 1 mil = 25.4 microns.
• Gauge – an older plastics unit; 100 gauge = 25.4 microns (1 mil). Avoid it in specifications.

Quick conversion table

Typical ranges

• 100–150 microns: lightweight disposable bags for routine covering and short transfer.
• 150–250 microns: standard to medium-duty hospital and mortuary bags.
• 250–550+ microns: heavy-duty, disaster, bariatric and high-barrier bags.

These are market patterns, not rules – check the datasheet for the product you are buying.

Why thickness is not everything

• Material: 200 microns of LLDPE behaves differently from 200 microns of HDPE or PVC.
• Seams and zips: most leaks occur there. A welded seam on a thinner bag can outperform a sewn seam on a thicker one.
• Handles: load capacity depends on how handles are anchored.
• Single vs. total thickness: some suppliers quote the combined thickness of two layers. Ask whether the figure is per layer.

Verifying thickness

A simple micrometer or digital thickness gauge lets you spot-check deliveries against your order. Measure several points, away from seams, and record the results with the batch number.

Need a quote or a specification check? Send your quantities, sizes and application to our Bulk & Tender Enquiries desk and we will match products to your requirements.

Educational resource only. This article does not replace facility protocols, infection-prevention policies, official forensic procedures, manufacturer instructions or legal advice. Always verify product suitability against the applicable protocol and supplier test evidence. Last reviewed: October 2026.