Safety boots and safety trainers.

S3 is a protection class under EN ISO 20345. It means the boot has a 200 joule toecap, a closed heel, antistatic properties, energy absorption in the heel, a water-resistant upper, a penetration-resistant midsole and a cleated outsole. In practice S3 is the default specification for construction and groundworks, because it covers both the nail through the sole and the wet.

Both have the 200 joule toecap and both have the penetration-resistant midsole that stops a nail. The difference is water and grip: S3 adds a water-resistant upper and a cleated sole, S1P does not. S1P suits indoor and workshop use where there are sharp objects underfoot but no mud. S3 is the outdoor, all-weather version.

Yes, for the thing the standard measures. Both steel and composite toecaps have to withstand the same 200 joule impact to be certified to EN ISO 20345, so neither is safer by the standard. Composite is lighter, non-metallic and does not conduct cold, which is why it gets specified where metal detection or cold is an issue. Steel is cheaper and gives a slimmer toe profile.

Certified safety trainers do. If the trainer carries EN ISO 20345 with an S code, it holds the same 200 joule toecap as a boot and is genuine safety footwear. What it usually lacks is ankle support, so sites with uneven ground often specify a boot regardless of certification. Check the site rules, not just the standard.

It depends who is buying. Industrial protective boots and helmets that meet the relevant standards are zero-rated for VAT when they are sold to an individual for their own use. Sold to an employer to issue to staff, they are standard-rated at 20%. That is HMRC's rule in VAT Notice 701/23, and it catches a lot of people out — the same boot, two different VAT treatments depending on the buyer.

Try them late in the day, in the socks they will be worn with, and allow a thumb's width in front of the longest toe — a rigid toecap gives no warning before it hurts. Many ranges only do a standard width, so if anyone on the team needs a wide fit, say so up front; it narrows the options and is better handled before the order than after.

Six to twelve months of daily site wear is typical, and the boot is finished when the tread is gone, the midsole is exposed, the toecap is visible through the upper or the boot has been through a serious impact. A toecap that has taken a real hit is spent even if it looks fine — it is a one-use energy absorber, like a cycle helmet.

Yes to both. Wellingtons in the S5 class — and S6 or S7 under the 2022 revision — cover agriculture, food processing and groundworks in the wet. Rigger boots we can bring in, but be aware that many principal contractors now exclude riggers from their sites because of the lack of ankle support, so check the site rules before ordering a batch.