Sod Calculator — Rolls, Pallets & Installation Cost

Plan lawn areas, whole pallets or loose rolls, and compare your quoted costs with refundable pallet deposits shown separately.

Soil Calculator — Topsoil, Raised Beds, Bags & Cost

Plan new soil for beds and measured areas. Subtract existing fill and compare whole bags with bulk orders and delivery quotes.

Solar & Battery Calculator: Output, Backup and Payback

Estimate rooftop solar panels, output, self-use, exports, battery size, backup hours, shifted energy, payback and 20-year cash flow.

Stair Stringer Calculator — Rise, Run & Layout

Plan a straight staircase, fit the available space and compare riser counts. See a proportional drawing and print your dimensions in inches or millimetres.

Steel Tube Roof Truss Calculator — Loads & Deflection

Build a gable, mono-pitch or arched rectangular-tube truss and calculate roof loads, reactions, member forces, deflection, tube mass and a cut schedule.