Building calculators
Estimating tools for post-frame, cold-formed steel and red iron structures. You supply the prices your supplier or contractor quoted; these work out the quantities and what it comes to.
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Your numbers, not ours
Steel and lumber prices move constantly and vary by region, so nothing here ships with a built-in price. Enter the rate you were quoted and the arithmetic is yours.
Quantities and cost only
These count panels, posts, studs and square footage. They do not size beams, columns or purlins — load-bearing members are engineering, and that belongs with a licensed engineer.
Every assumption shown
Each result states what it counted, what it excluded and what waste allowance it applied, so you can check it against a supplier's takeoff rather than trust it blindly.
Whole building
Building Cost
Price a post-frame, cold-formed or red iron building from the rates your supplier quoted — shell, slab, insulation, labour and contingency, per square foot.
System Compare
Compare post-frame, cold-formed steel and red iron on your own quoted rates — upfront cost against annual cost once service life and upkeep are counted.
Framing & structure
Roof, walls & insulation
Metal Panels
Count the metal roofing or siding panels a building needs from coverage width and panel length, with screws and waste — priced at your supplier's rate.
Pitch & Rafter
Turn a building span and roof pitch into rafter length, ridge rise, pitch angle and the area multiplier that decides how much roofing you actually order.
Trim & Flashing
Count the eave, rake, corner, base, ridge and opening trim a metal building needs in linear feet and sticks, priced at the rate your supplier quoted.
Building Insulation
Work out the wall and roof area a steel building needs insulated, net of openings, and how many rolls of faced blanket that takes at your quoted price.