A slab can need more than one reinforcement-positioning product. Bottom steel uses cover blocks, while top steel requires plastic rebar chairs. Beams and electrical conduits are calculated separately and then combined into the requirement.
Bottom steelChoose from the concrete cover specified in the structural drawing.CL-15 / CL-20 / CL-25 / CL-30
Down beamsSelection changes with the largest main-bar diameter.CLB-25 / CLB-3032
Beam sidesVertical spacer on beam sides.SL-2540
Electrical conduitsSupport conduit at the intended level before concreting.CL-50
Beam bottom and beam sides are different conditions. Use the total beam length when available for a better quantity estimate.
Down beamChoose using the largest main-bar diameter and required cover.CLB-25 / CLB-3032
Beam sidesSpacer on both sides of the beam cage.SL-2540
Column selection changes with column size and the specified concrete cover. The calculator also accounts for repeated shuttering stages over the floor height.
9 inch side / mixed sizesUsed for 9 × 9 inch and mixed combinations such as 9 × 12 inch where the required cover differs by face.SL-2540
All sides 12 inch or largerChoose according to the required cover and reinforcement arrangement.CLB-40
Vertical reinforcement needs spacers on the wall faces before shuttering. Enter the wall area and choose the cover specified for the work.
Vertical wall applicationChoose the spacer orientation that provides the required wall cover.SL-2540
Waist slab, landings and step reinforcement can have different cover and support conditions. Follow the structural drawing and ask CROSSLOCK if the support condition is unclear.
Select these narrow beam conditions from the required concrete cover and reinforcement arrangement. Ask CROSSLOCK if the detail differs from a normal beam.
Where conduits need to be supported at an intended level inside the slab, the calculator provides a practical planning estimate from slab area.
Conduit supportChoose the support that suits the conduit level and slab arrangement.CL-50
