A baby crawling on all fours moves along supported on their hands and knees, with their tummy off the floor. This stage most often appears between seven and ten months, with wide variation from one child to another. It isn’t compulsory: around one child in ten goes straight from sitting to walking without ever having crawled.
So what matters isn’t the timetable but the progress. A child who is gaining mobility, whatever technique they use, is following a normal path.
At what age does a baby start crawling on all fours?
The usual range for crawling on all fours proper is seven to ten months. Getting into the all-fours position without moving forward, rocking back and forth, generally comes one to two months earlier.
This stage depends on several earlier skills. Your baby needs to sit without support, know how to go from sitting to lying on their tummy, and have enough strength in the shoulders and trunk. That is why it almost always follows independent sitting.
A baby born prematurely is assessed on their corrected age, not their actual age. A gap of two or three months is to be expected and is not a delay.
The steps leading up to crawling
The sequence is fairly consistent, even though the length of each phase varies a great deal.
Tummy time and pushing up on the forearms
It all starts with tolerating lying on the tummy. Your baby first learns to lift their head, then to push up on their forearms, then to straighten their arms. This work builds the shoulder girdle, without which none of what follows is possible.
Pivoting and moving in a circle
At around six or seven months, many babies turn round on the spot by pushing with one arm. They reach a toy to one side without moving forward. This is the first form of deliberate movement.
Commando crawling on the tummy
The tummy stays on the floor, the arms pull and the legs push in an uncoordinated way. Some children go backwards before going forwards, which is common and nothing to worry about. This phase can last several weeks.
The tabletop position and rocking
Your baby pushes up onto hands and knees, tummy off the floor, and rocks back and forth. These movements fine-tune balance and coordination before the first real journey.
Coordinated crawling
Finally comes the cross pattern: right hand with left knee, left hand with right knee. This diagonal coordination is what distinguishes true crawling on all fours from the in-between forms.
What a baby crawling on all fours is really developing
This stage uses several systems at the same time. It strengthens the shoulders, wrists and hips. It refines coordination between the two sides of the body. It also works distance vision, since your child fixes on a target before heading towards it.
Pushing up on open hands plays a special role. It stretches the palm, works the wrist and prepares the fine grasp that will later be used to hold a pencil or a spoon. This link between gross and fine motor skills is explained in our article on fine and gross motor skills.
Finally, moving independently changes your child’s relationship with space. They choose where to go, judge a distance, go round an obstacle. They build a mental map of the room that sitting alone does not allow.
My baby isn’t crawling on all fours: should I be worried?
No, in the vast majority of cases. Not crawling on all fours is not in itself a warning sign. Several alternative ways of getting around are perfectly normal and well documented.
- Bottom shuffling, sitting up and pushing with the heels.
- Rolling, where the child gets around by turning over and over.
- The bear crawl, on hands and feet with legs straight.
- Going straight from sitting to standing and then walking.
What does call for medical advice is when overall mobility isn’t progressing. Talk to your child’s doctor if, at around ten months, they aren’t getting around in any way, only use one side of their body, or can’t sit without support.
Persistent asymmetry also warrants an appointment. A child who always pushes with the same arm or always drags the same leg should be examined without delay.
How to help your baby start crawling
The most useful help is mainly not getting in the way. Babies learn by trying, failing and starting again. The adult’s role is to create the right conditions for these attempts.
Floor time, every day
This is the most decisive factor. A child who spends their days in a bouncer, a car seat or a baby carrier has few chances to push up on their arms. Several short spells on the floor spread through the day are better than one long session.
A floor that is firm and big enough
A surface that is too soft absorbs the push and makes support unstable. A surface that is too hard puts your child off, as they bang their knees. A firm, slightly cushioning surface is the best compromise.
That is exactly what a play mat in 15 mm XPE foam is designed to offer: dense enough to give back the push, soft enough to protect knees and cushion sideways tumbles. Materials and their density are covered in detail in our guide to foam baby mats.
Our play mats are presented with their dimensions and uses on a dedicated page.
Size matters as much as material. A one-square-metre mat is fine for a newborn but becomes unusable as soon as your child starts moving. Plan for a surface of at least two metres by one and a half metres for this period.
Toys placed just out of reach
Motivation is what drives movement. Put a familiar toy thirty or forty centimetres in front of your child, a little further than they can reach by stretching out their arm. Too far and they give up; too close and they don’t need to move.
Avoid moving the toy as soon as they get near. The aim is for them to succeed, not to chase a target that keeps running away.
Clothes that don’t get in the way
Slippery trousers make knees slide. A dress or a long bodysuit gets caught under the knees and stops forward movement. Smooth socks reduce grip. Thin leggings and bare feet give the best grip.
What is best avoided
Baby walkers remove the need to crawl and are advised against by health professionals. Seats that hold your child sitting up also cut down floor time. And pulling a baby by the arms to put them in position teaches them nothing: they need to get there on their own.
This approach ties in with the principle of free movement, which means letting your child discover each position by themselves rather than putting them in it.
What changes at home once your baby is on the move
Crawling turns your home into a place to explore. What was out of reach becomes accessible in a few seconds. This is the moment to go round every room again at baby height.
The danger spots are well known: sockets, cables, corners of low furniture, plants, bins, cleaning products under the sink, stairs. Our room-by-room guide goes through each of these points.
The flooring deserves a look too. Laminate is slippery, tiles are cold and hard, carpet grips but holds on to dust. A firm, washable surface in between solves most of these situations without any building work.
How long does the crawling phase last?
It generally lasts three to six months, up to the first steps. In fact, many children carry on crawling after they have started walking, simply because it is quicker and safer on some surfaces.
During this period, your child needs space and variety more than new toys. Activities suited to this age are covered in our article on the play mat from 6 to 12 months.
The most common mistakes at this stage have less to do with equipment than with how the space is organised. We have listed them in our article on mistakes to avoid with a play mat.
