London Stock Brick Identification Guide
London stock bricks are strongly associated with traditional London and South-East building, but similar yellow, brown and multi-coloured stock bricks exist elsewhere. Identification should use several physical clues together.
What is a London stock brick?
The term generally refers to traditional stock bricks associated with London and surrounding areas. They are often recognised by warm yellow, buff, brown or mottled colouring and a relatively textured, sometimes sandy face. Individual products and historic bricks vary considerably.
How to check one
- Measure the brick without including the mortar joint.
- Look at the overall colour across several bricks.
- Check whether the face has a sanded or textured finish.
- Inspect the frog and any maker's mark.
- Look for handmade variation, rounded arrises or irregular firing.
- Consider the building's location and age, but do not use location as proof.
Why colour can be misleading
Yellow stock bricks can photograph very differently under shade, warm indoor lighting and direct sunlight. Soot and pollution can darken old London brickwork, while cleaning can expose a brighter original surface. Compare texture and dimensions as well as colour.
Finding a replacement
If you are repairing a London stock wall, match the physical sample rather than ordering solely from a product photograph. Check size, face texture, colour variation and the appearance of the arrises. For heritage work, reclaimed bricks may be more appropriate than a visually similar modern product.
How to match a replacement brick