RESOURCE LIBRARY

Type in the height you are working toward, this calculator will provide you with options to consider for larger or thinner bed joints to achieve it. Bump Up or Grind Down? You should also consider brick type and joint finish when selecting the correct option.

Enter span, arch depth on face, preferred joint size and intrados rise required as a percentage of span (recommended 1%) and the calculator will provide all the detail to set out brick cut size at intrados and extrados (extrados brick cuts will be a constant measurment). Bricks at intrados with a >1% rise will be tapered and increase in size from skewback to key brick, and mirrored on opposite side. Click here to return to BTTB Calculation Tool Menu

For circular on plan slabs, patios, columns and pile foundations. Insert radius and height measurements to calculate volumes of concrete, with the additional function of including up to 6 separate sets of measurements (select Add Another Set of Measurements). Click here to return to BTTB Calculation Tool Menu

A simple tool to determine an angle, particularly useful when calculating the angle of rake on a gable or boundary wall. Ensure the horizontal and vertical lines are at 90 degrees to each other, and measure back from the right angle to the line of rake. Click here to return to BTTB Calculation Tool Menu