Cost to build a shed?

600 let say

8ft x 6ft shed cost’s:
Materials: £500-£700 (depending where you go)
Labour: £300-£400 (2 1/2 days)

£220

Depending on size from 150 to 300 .

Not a big job in theory look to be charged around £350 would love the opportunity

The base is key, if it is just levelling the ground and laying some slabs it will be cheaper than a 150mm concrete pad. The shed itself would generally go together quite quickly. You might allow a budget of £300-500

Ho.Just estimate a concrete base around £250.
To but together a medium shed around £150.

it all depends on the person building it if all the parts are there and its just someone putting it together for you they should just charge you a day rate for the job if its going to take one day then it all depends on the persons charge for that days work,
you will find most trades will charge between 100 and 150 a day depending on the job and time scale, todays rate for just an unskilled labourer is around 70-80 a day
so between 100 - 150 would be the usual rate for a trades person
but for that rate you would or should get a very good job