Straight talk about buying a staircase, so you do not get ripped off.

What a staircase costs in the UK

There is no single price for a staircase in the UK, and anyone quoting one without seeing the space is guessing. The cost is set by the design, the timber species and grade, the sectional sizes of the parts, the balustrade, and how much of the surrounding work is included. Two quotes are almost never for the same specification.

What actually drives the cost of a staircase?

The design, the timber and grade, the sectional sizes of the parts, the balustrade, and how much of the surrounding work is included. A staircase has no fixed rate, so the number moves with those choices. What actually drives the cost of a staircase.

Do I need building regs to replace a staircase?

Replacing a staircase like-for-like in the same position is generally not controlled work. Changing the rise, going or position, moving the stair or opening up the stairwell is a material alteration and does need building control sign-off. Do I need building regs to replace a staircase.

How steep can a staircase be in the UK?

For a private domestic staircase in England the pitch must be no steeper than 42 degrees, the going at least 220mm, and every rise equal and between 150mm and 220mm. Private staircase dimensions: rise, going and pitch.

Are the rules different in Wales?

Yes. Wales uses its own Approved Document K, where the going must be at least 245mm when the rise is between 155mm and 220mm, or at least 223mm when the rise is between 165mm and 200mm. The England figure of 220mm is not enough in Wales. Staircase building regulations: Wales.

Does the timber species tell me the quality?

No. A label like oak or pine tells you the species, not the journey. A lot of stair timber is shipped abroad for processing before it returns, so ask where it was grown and where it was processed. The label tells you the tree, not where it has been.

Last updated: 9 August 2026