Head to head
Ifor Williams Business Inabox vs Stewart GX16-21 L
The Ifor Williams Business Inabox is 3.6 tonnes lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Stewart GX16-21 L weighs 3.6 tonnes more empty.
Specifications side by side
| Ifor Williams Business Inabox | Stewart GX16-21 L | |
|---|---|---|
| Unladen weight | 1900kg (Workshop M) | 5,500kg |
| Gross weight | 3500kg | - |
| Internal length | 4.45m (Workshop M) | - |
| Internal width | 2.18m | - |
| Overall length | 5.96m (Workshop M) | - |
| Carrying capacity | - | 16,000kg |
| Cubic capacity | - | grain 21m3, silage 37m3 |
| Body | - | 6700 x 2450 x 1370mm |
Sources: Ifor Williams Business Inabox, Stewart GX16-21 L. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Business Inabox if...
- you want one that is 3.6 tonnes lighter empty
A trailer shell fitted out as a mobile workshop, shop or catering unit rather than a load carrier. Tradespeople and mobile caterers buy it to take a fitted-out workspace to a site rather than build one into a van.
Listed by
- Norfolk Trailers - Norwich
Buy or hire the GX16-21 L if...
A large bulk trailer used to cart grain and root crops at harvest, with an easy sheet system to cover the load without climbing on top. Farmers hire extra units like this at harvest to move crop faster than their own trailers allow.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams Business Inabox and the Stewart GX16-21 L?
The Ifor Williams Business Inabox is 3.6 tonnes lighter empty. The Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit; the Stewart GX16-21 L is a bulk agricultural trailer with easy sheet cover.
Which is lighter, the Ifor Williams Business Inabox or the Stewart GX16-21 L?
The Ifor Williams Business Inabox. It is 3.6 tonnes lighter empty than the Stewart GX16-21 L.
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