What is a starter bar?

A starter bar is a reinforcing bar left projecting from cast concrete so the next element can be structurally connected to it. Dutch: stekeind.

What is stone wool?

Stone wool (rock wool) is insulation spun from molten rock such as basalt. Non-combustible, vapour-open and sound-absorbing; sold as batts, rolls and slabs.

What are brick slips?

Brick slips are thin slices of brick bonded to a flat substrate or insulation and pointed, so a wall looks like real brickwork at a fraction of the depth.

What is mineral filler?

Mineral filler is finely ground stone, mostly under 0.063 mm, added to concrete, mortar or asphalt to fill the voids between cement and sand grains.

What is wire brick lath?

Wire brick lath is a plaster base of woven wire mesh with fired clay nodules at the crossings, used for plastered ceilings, vaults and curved surfaces.

What is a straight flight staircase?

A straight flight staircase rises in one straight line without turning. Pros and cons, a worked example of the space it needs, and the rules to check.

What is a steekspant?

A steekspant is a simple Dutch roof frame of two rafters, a collar and a king post at the ridge, used for small spans such as sheds and small lofts.

What are lock centres?

Lock centres are the distance from the handle spindle centre to the keyhole or cylinder centre. Common sizes, how to measure and why they must match.

What is an alley?

An alley is a narrow street or passage between buildings, often too narrow for cars. Types, local names and what residents should check.