Construction Calculator vs 樓梯量測估料

Build faster, measure smarter. Pro² is a complete construction calculator for decking, roofing, concrete, stairs, framing and precise on-site measurements. It’s made for builders, carpenters, contractors and serious DIY who need accurate answers in seconds. DECKING & FLOORING • Area, board runs, spacing and waste allowance • Material takeoff for boards and joists ROOFING (METAL & TILE) • Coverage and sheet/tile counts • Overhangs, pitch, angle and rafter length helpers STAIRS & STRINGERS • Rise/run, slope %, angle (°) and stringer length • Clear breakdowns and step-by-step visuals BALUSTERS, RAILING & EVEN SPACING • Perfect marks from 0 to full length • Spacing tables for clean, consistent layouts CONCRETE, ASPHALT, GRAVEL & SOIL • Volume estimators for slabs, pads, footings and fills • Smart rounding for real-world quantities SLOPE, PITCH & ANGLES • Fast framing helpers for cuts and layout • Metric and imperial support in every tool UNIT CONVERTER • Length, area, volume, density and weight • Built for mixed-unit jobs (mm, ft, inches) QUICK CALCULATOR • Running history with one-tap copy/share MADE FOR THE JOBSITE • Fraction support and practical defaults • Works fully offline—no signal required • Clean visuals that stay readable outdoors WHY PROS USE PRO² • One app instead of juggling multiple separate tools • Accurate results, simple inputs and clear diagrams • New tools and improvements arrive regularly based on user feedback Pro² is built for professional construction, carpentry, decking, roofing and framing work—yet intuitive enough for DIY home projects. Upgrade to unlock additional tools and advanced features when you’re ready to grow your toolkit. SUBSCRIPTION TERMS • Carpenter Pro is an optional auto-renewing subscription with Weekly and Annual plans. • A 3-day free trial is available on the Annual plan. • Payment is charged to your Apple ID and subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. • You can manage or cancel your subscription in your App Store account settings. • Lifetime is a one-time purchase and does not auto-renew. • The localized price is shown in-app before you confirm. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapkin.dev/apps/carpenter/privacy.html

給裝修師傅量「既有樓梯」用的離線估料工具。一次買斷、無訂閱、無廣告、不收個資。 現場一條線一條線量、一段段畫到罵髒話？輸入幾個尺寸，App 直接幫你算面積、周長，並畫出平面圖、立面圖，還能匯出 DXF 丟進 CAD。 【五種樓梯型式】 直梯、L 型、U 型對折、剪刀梯、雙轉台/三跑——含轉台（平台）。剪刀梯是台灣透天主流，立面以「折回剖面」呈現，不會畫成直通梯。 【算什麼】 ・踏面+立板展開貼材面積（貼石材/磁磚/木皮→才、m²） ・立面投影（側剖）、正視投影面積 ・扶手斜長、級鼻/收邊線長 【出圖】 ・平面圖（梯段藍、平台橘） ・立面圖（側剖、轉折梯折回） ・匯出 DXF（平面+立面圖層，AutoCAD/SketchUp 可開） 公分／台尺雙制。完全離線、不需網路、不蒐集任何個人資料。 ※ 面積/長度為依輸入尺寸之估算值，實貼/實作請以現場丈量為準。