How to use a sledgehammer
Updated: 24 October 2026
The hammer is already in the shed, and the swing you have in mind is both hands overhead, the head coming down past your shoulder. That is the tiring version. This page is how to use a sledgehammer you already own: check the head, set your feet, slide the grip, and stop when the job has left the hammer behind. Prices and brand order stay on the [sledgehammer comparison](/hub/hand-tools/sledgehammer). Peter F. did not film a swing test. The limits below come from UK tool guidance and from the Health and Safety Executive's equipment types, not from a lab score on these listings.
The hammer is already in the shed, and the swing you have in mind is both hands overhead, the head coming down past your shoulder. That is the tiring version.
The hammer is already in the shed, and the swing you have in mind is both hands overhead, the head coming down past your shoulder. That is the tiring version. This page is how to use a sledgehammer you already own: check the head, set your feet, slide the grip, and stop when the job has left the hammer behind. Prices and brand order stay on the sledgehammer comparison. Peter F. did not film a swing test. The limits below come from UK tool guidance and from the Health and Safety Executive's equipment types, not from a lab score on these listings.
Our top picks
| Badge | Product | Head weight | Handle | Shaft length | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Draper Draper 81430 14 lb hickory sledge | 14 lb | Hickory | Not printed | 6.6 | about £54.88 | View offer |
 Faithfull Faithfull FAIFG14 14 lb sledge hammer | 14 lb | Fibreglass | Not printed | 8.6 | about £42.70 | View offer | |
| Best value |  Amtech Amtech A2125 4 lb sledge hammer | 4 lb | Fibreglass | Short | 8.1 | about £11.49 | View offer |
Check the hammer first
Before any stance, look at the joint and the face. A head that shifts on the shaft, a crack you can see, a chip on the striking face, or a handle slick with oil is a hammer you do not swing. Aldea's safe-use sheet says to discard a chipped or loose head and not to grind a striking face back into shape at home.
A damp shed loosens a hickory head, and a fibreglass bond that has failed is usually a new hammer. Weight and length, if you are still choosing, are on the sledgehammer buying guide.
Stance and grip
Stand with your feet staggered and the target in front of the lead foot. BuildWiz's homeowner note, a rule of thumb rather than an HSE distance, asks for an arc plus about 2 metres of clear space. If you cannot find that room, use a shorter hammer.
Hold the handle with both hands. The lower hand starts near the end and slides towards the head as it falls. BuildWiz prefers a swing across the body when the target is on the ground, not an axe coming down from above your crown. Strike with the face square. If the shaft hits the ground in front of the head, that is an overstrike, and fibreglass or hickory is where the two shafts take that miss differently.
What not to hit
Do not strike the cheek, and do not strike one hammer face with another. Do not hold a cold chisel in the other hand and swing a sledge at it. A sledge needs both hands. The usual partner for a chisel is a club hammer.
Do not use the sledge as a lever along the shaft, and do not ask a second person to give it a tap with another hammer to seat a wedge. If you are splitting timber, strike the wedge with the sledge face, and keep every hand off it once the swing starts. When the material is thick concrete or steel you cannot identify, stop.
Protection and when to stop
Wear impact eye protection before the first blow. Chips from concrete, brick, and a damaged face are the projectiles HSE describes for spectacles, goggles, or a face shield. From 11 November 2025, new occupational eyewear certificates follow EN ISO 16321. Existing EN 166 stock can continue until that certificate expires. Boots with protective toecaps matter where a head can land on a foot. At work in Great Britain, PUWER covers work equipment.
Stop when you cannot control a practice swing, when the head moves, or when you do not know what is under the slab. If the concrete is solid, thick, or full of mesh, the hammer has reached its limit. That decision, including cables under a path, is on breaking concrete with a sledgehammer.
Common questions
How do I hold a sledgehammer?
Use both hands. Start with one hand near the end of the handle and let it slide towards the head as the hammer falls, so you guide the face instead of locking your wrists. Keep the second hand on the shaft, not on a chisel. If you only have one hand free, you are holding the wrong hammer for a bolster.
Should I swing it over my head?
Not as the default, and not at a target on the ground. UK guidance aimed at householders prefers a swing across the body so you can see the face land, with the head weight doing the work. An overhead axe-style swing is harder to stop and harder on your back. If the space is too tight for a controlled arc, change the hammer or the method.
What do I wear?
Impact eye protection before you start, and a face shield if the material is throwing larger chips. Boots with protective toecaps where a lump or the head could fall on your foot. Gloves for grip, not as armour against a missed face. HSE describes those equipment types. A shock-absorbing handle on the listing is not a substitute for any of them.
How do I know the head is safe to swing?
The head does not move when you try to twist it, the shaft is not cracked or oily, and the face is not chipped or mushroomed. If any of those are true, you do not take a test swing to see what happens. A wooden handle stored hot and dry can loosen even if it looked fine last month.
Can I hit a chisel with a sledgehammer?
Not while the chisel is in your other hand. A sledge needs both hands, and a second hardened face, or a hand, does not belong in the strike. Use a club hammer for a bolster or a cold chisel. Do not strike the sledge with another hammer to drive it, and do not strike the cheek. Two hammer faces together are a fragment risk.
What if the handle is oily or cracked?
Clean a greasy grip before you judge the hammer, and do not swing it while it is slippery. A crack, a split, or a head that shifts means the hammer is out of use. On hickory, a correct wedge refit is a skilled job. On bonded fibreglass, a failed joint is usually a new hammer.
Related pages
Sources
Sources from the research digest, last checked on 22 October 2026.
- BS 876:1995 scope, Intertek Inform (retrieved 22.10.2026)
- PUWER 1998, regulation 4 (retrieved 22.10.2026)
- HSE, PUWER overview (retrieved 22.10.2026)
- HSE, using the right type of PPE (retrieved 22.10.2026)
- BSI, EN ISO 16321 eye protection (retrieved 22.10.2026)
- BuildWiz UK, sledgehammer guide (retrieved 22.10.2026)
- Screwfix, hammer buying guide (retrieved 22.10.2026)
- amazon.co.uk, Roughneck 16 lb listing (retrieved 22.10.2026)