Grout Calculator — Coverage & Package Purchase Plan

Plan grout for floors, walls and backsplashes. Combine product-specific coverage, keep colours separate, and get whole packages, remainder and an optional cost.

Insulation Calculator — Packages, Layers & Cost

Plan batts, rolls or loose-fill bags from product-label coverage. Combine surfaces, keep products separate and build a purchase list with your own quotes.

Laminate Flooring Calculator — Layout, Cartons & Cost

Plan laminate for multiple rooms. Compare row direction, reuse compatible offcuts and calculate separate carton orders with existing stock and your prices.

Mulch Calculator — Beds, Bags, Bulk & Cost

Plan mulch for multiple garden beds, subtract existing layers and stock, then compare whole bags with bulk delivery using your quotes.

Paver Calculator — Patio Layout, Base & Packs

Plan a patio or path: compare straight paver layouts, count cuts and estimate base, bedding, packs and supplier costs.

Picture Frame Calculator — Dimensions & Cut List

Plan a rabbeted picture frame from its package, outside or visible opening. Get finished rail dimensions, a feasible stock cutting plan and a printable shop sheet.

Pipe Displacement Calculator

Compare closed-end, open-end and steel-body pipe displacement from actual OD, ID and length; solve target displacement length and cross-check internal capacity.

Plant Spacing Calculator — Bed Layout & Plant Count

Plan actual planting places in a rectangular bed, compare row directions and turn the layout into a whole-pack plant order.

Rafter Length Calculator — Pitch, Overhang & Ridge

Calculate common rafter line length with roof pitch, horizontal overhang and ridge-board deduction. View the section and print your measurements.

Rectangular Tube Load Calculator — RHS & SHS Beam

Check RHS or SHS bending stress, deflection and estimated load capacity for steel, stainless steel or aluminum with simple, fixed or cantilever supports.

Retaining Wall Calculator — Blocks, Gravel, Drainage & Cost

Estimate a segmental retaining wall from editable block geometry. Calculate courses, blocks, pallets, caps, base and drainage aggregate, pipe, fabric, excavation and cost.

Roof Shingle Calculator — Roof Planes, Bundles & Cost

Plan shingle bundles for multiple roof planes, with pitch, product coverage, starter strips, ridge caps and your material quotes.