If you’re a bricklayer, you’ll know just how important builders’ line and chalk are. Builders’ line (kept in place with line pins) is used to create straight lines along flat surfaces. The chalk transfers from the line to the surface, helping bricklayers to maintain plumb walls. You’ll find a selection of reliable chalk and line here, from leading brands such as Ox Tools and Stanley. Plumb lines are designed to check the vertical line on upright surfaces. These essential products are always in high demand, so it’s always a good idea to have spares in your tool bag.