Trueflat
Sheet metal flat pattern app: cones, square to round, elbows, tees and 59 shapes in all, with sheet thickness and 1:1 output.
Calculators in this app
59 calculators. Free on the web.
Sheet metal
ConeConesTrueflat
Truncated coneConesTrueflat
Cone by triangulationConesTrueflat
Conical roof flangeConesTrueflat
Cone cut parallel to axisConesTrueflat
Eccentric reducerConesTrueflat
Angled eccentric reducerConesTrueflat
Oblique coneConesTrueflat
Multi-stage coneConesTrueflat
Elliptical coneConesTrueflat
China capConesTrueflat
Rectangular hopperPyramidsTrueflat
Polygon pyramidPyramidsTrueflat
Sphere goreSpheresTrueflat
Sphere zoneSpheresTrueflat
FlangeFlat partsTrueflat
Pipe miter cutPipesTrueflat
Lobster back elbowPipesTrueflat
Pipe teeTees & intersectionsTrueflat
Offset lateralTees & intersectionsTrueflat
Eccentric teeTees & intersectionsTrueflat
Pipe on coneTees & intersectionsTrueflat
Tapered branchTees & intersectionsTrueflat
Cone on coneTees & intersectionsTrueflat
Tee on elbowTees & intersectionsTrueflat
Two-elbow branchTees & intersectionsTrueflat
Duct on pipeTees & intersectionsTrueflat
Roof penetrationTees & intersectionsTrueflat
Square to roundTransitionsTrueflat
Round to squareTransitionsTrueflat
Rectangle to rectangleTransitionsTrueflat
Offset rectangularTransitionsTrueflat
Twisted transitionTransitionsTrueflat
Eccentric square to roundTransitionsTrueflat
Double offset bootTransitionsTrueflat
Angled square to roundTransitionsTrueflat
Flat oval to roundTransitionsTrueflat
Oval to roundTransitionsTrueflat
Ventilation neckTransitionsTrueflat
Rounded corner hopperTransitionsTrueflat
Conical elbowElbows & offsetsTrueflat
Ogee offsetElbows & offsetsTrueflat
Oval elbowElbows & offsetsTrueflat
Helical elbowElbows & offsetsTrueflat
Duct offsetElbows & offsetsTrueflat
Diagonal offsetElbows & offsetsTrueflat
Duct elbowElbows & offsetsTrueflat
Duct breechesForksTrueflat
Y branchForksTrueflat
Trouser pieceForksTrueflat
Offset trouser pieceForksTrueflat
Unequal trouser pieceForksTrueflat
Angled offset trouserForksTrueflat
Multi-leg breechesForksTrueflat
Tapered YForksTrueflat
Gutter cornerElbows & offsetsTrueflat
Conveyor flightIndustrialTrueflat
Spiral chuteIndustrialTrueflat
Dished headIndustrialTrueflat
Sheet thickness is part of the input. Say whether your dimensions are inside, middle or outside and the pattern is developed on the neutral line. Each shape tells you whether its pattern is exact or approximate, and by how much.
Every pattern is computed by two independent implementations and the results are compared against each other. Calculation, flat pattern and export run on the device without internet.