Hallway & Under-Stairs Guide
How to Deal with Angled Gas Pipes and Fuse Boxes in Under-Stairs Joinery
Gas pipes, consumer units, water pipes, and fuse boxes are among the most common obstacles in an under-stairs void — and how they are handled determines whether the finished joinery is genuinely functional or leaves awkward voids and access constraints.
Gas Pipe Clearances and Access Requirements
Gas pipes within a joinery enclosure must remain accessible for inspection and maintenance — they cannot be buried behind a permanently fixed panel. The pipe run can be enclosed in a ventilated boxing that is either removable (fixed with screws rather than adhesive) or hinged. Gas Regulations (Gas Safety (Installation and Use) Regulations 1998) require that any gas installation within a building be accessible without the use of tools — a screwed removable panel qualifies. The boxing must be ventilated with apertures of at least 25mm aggregate to prevent gas accumulation.
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Consumer Units and Fuse Boxes in Joinery Enclosures
A consumer unit (fuse board) within a joinery enclosure must remain accessible for the homeowner and for contractors carrying out electrical work. The housing door must open freely and the unit must be visible at an appropriate height for the MCB labels to be read. The IET Wiring Regulations (BS7671) require that consumer units remain accessible — a push-to-open panel that opens to reveal the consumer unit complies. Minimum 50mm clearance on all sides of the consumer unit for heat dissipation.
FAQ
Common Questions
Can we relocate the consumer unit to create more usable under-stairs space?
Relocating a consumer unit is possible but requires a Part P-qualified electrician and may require building regulations notification. It is sometimes the best solution for complex under-stairs voids.
Do you handle the boxing of gas pipes as part of a joinery project?
Yes — we design and build compliant gas pipe boxing as part of the under-stairs joinery composition. We do not touch the pipes themselves — a Gas Safe engineer handles any pipe work.
What if the water stopcock is under the stairs?
The stopcock must remain accessible in an emergency — we design an access panel or clear path to the stopcock as a primary requirement. We locate it at the measuring visit.
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