Tank Shell Thickness Calculator: API 650 Design & Test

Calculate API 650 tank shell design thickness, hydrostatic test thickness, and governing plate size using the one-foot method.
Aluminum Plate Weight Calculator: Get KG, LB & Volume Fast

Estimate aluminum plate weight, volume, and surface area in metric or imperial units for any common alloy and quantity.
Wire Mesh Weight Calculator: Panel & Total Weight in kg/lb

Calculate wire mesh weight per panel and total order weight from wire diameter, mesh opening size, panel dimensions, and material density.
Expanded Metal Weight Calculator – Estimate Sheet Weight

Estimate expanded metal sheet weight using length, width, thickness, material density, and open area percentage for accurate ordering and shipping planning.
Rebar Weight Calculator: Total & Unit Weight Estimator

Calculate rebar unit weight and total weight by bar size, quantity, and length in both metric and US customary units.
Weld Metal Volume Calculator: Volume, Weight & Filler Estimate

Estimate fillet and groove weld metal volume, deposited weight, and filler metal needed from joint geometry, density, and deposition efficiency.
Shed Foundation Calculator: Estimate Materials & Cost

Estimate footprint area, concrete or gravel volume, pier count, and total material and labor cost for a shed foundation.
Pole Barn Material Calculator: Posts, Panels & Purlins

Estimate pole barn posts, wall girts, roof purlins, and siding/roofing panels from your building dimensions, spacing, and roof pitch.
Lean-To Roof Calculator: Rafter Length & Materials

Calculate rafter length, wall heights, roof area, rafter count, and roofing material for any lean-to, shed, patio, or carport roof.
Roof Valley Length Calculator: Get Precise Rafter Cuts

Find true roof valley rafter length, overhang-adjusted length, ridge rise, and recommended lumber order length from roof run and pitch angle.